scholarly journals Differentiation of morphological traits of common tansy (Tanacetum vulgare L.) originating from different stands

2012 ◽  
Vol 61 (2) ◽  
pp. 189-194
Author(s):  
Tadeusz Kęsik ◽  
Anna E. Wojciechowska ◽  
Karolina Pitura
Keyword(s):  
Chemical Composition ◽  
Soil Ph ◽  
Morphological Traits ◽  
Leaf Length ◽  
Stem Length ◽  
Growth Trend ◽  
Tanacetum Vulgare ◽  
Total Leaf ◽  
Number Of Leaves ◽  
Number Of Branches

The aim of the study was to determine the effect of pH and soil chemical composition on morphological traits of common tansy (<i>Tanacetum vulgare</i> L.). A two-year study was conducted based on observations, measurements and analyses of material collected from 24 stands in the following regions: Równina Włocławska (Włocławek Plain), Wyżyna Lubelska (Lublin Upland), Padół Zamojski (Zamość Depression), Działy Grabowieckie (Grabowiec Divide) Płaskowyż Suchedniowski (Suchedniów Plateau), Wysoczyzna Siedlecka (Siedlce High Plain) and Niecka Połaniecka (Połaniec Basin). Morphological traits of tansy shoots were determined: number of plants per clump, stem length, number of leaves per plant, total leaf length, petiole length, number of branches from the main stem, number of flower heads per corymb and flower head diameter. A soil analysis was performed determining the content of magnesium, potassium and phosphorus available for plants. The soil pH was also determined. The collected results indicate significant differentiation of the investigated samples, both in terms of morphological traits of the shoots and the chemical composition of the soils. A negative correlation was found between soil pH and number of leaves per shoot as well as number of branches per corymb. A positive correlation was noted between soil pH and total leaf length as well as between magnesium content and number of flower heads per corymb. The increased content of available phosphorus in the soil was associated with petiole shortening. A growth trend in the tansy shoot length was observed at larger amounts of available magnesium in the soil. On soils with low nutrient availability and a low pH, a reduced population density of the species in question was observed.

scholarly journals Chemical Mutagens Affecting in vitro Behavior of Gardenia jasminoides

2020 ◽  
Vol 30 (2) ◽  
pp. 209-218
Author(s):  
Eman Tawfik ◽  
Mohamed Fathy
Keyword(s):  
Sodium Azide ◽  
Morphological Traits ◽  
Lateral Roots ◽  
Guanidine Hydrochloride ◽  
Leaf Length ◽  
Chemical Mutagens ◽  
Gardenia Jasminoides ◽  
Number Of Leaves ◽  
Number Of Branches

The chemical mutagens, namely sodium azide and guanidine hydrochloride (30, 40 and 50 mM) for each were applied for the in vitro culture of Gardenia jasminoides Ellis. Eight morphological traits were evaluated to calculate the result of different concentrations of mutagens compared to control. In sodium azide, all morphological traits decreased compared to control, except the number of branches and leaves and leaf length, which increases compared to control. Unlike guanidine hydrochloride, all the morphological traits are enhanced in mutants rather than control. The polymorphism percentage resulted from genetic variation varied (57.71% in the case of sodium azide and 67.59% in guanidine hydrochloride). Hence, guanidine hydrochloride is a more powerful mutagen and causes more genetic variations and instability than sodium azide, as was reflected in morphological parameters (i.e., fresh weight, shoot length, root length, number of lateral roots, number of leaves, numbers of branches, leaf length, and leaf width) and physiological traits (i.e., chlorophyll pigmentation and carotenoids). Plant Tissue Cult. & Biotech. 30(2): 209-218, 2020 (December)

scholarly journals Pengaruh Dosis Pupuk KCl dan Persentase Defoliasi terhadap Pertumbuhan dan Hasil Tanaman Tin (Ficus carica L.)

2020 ◽  
Vol 5 (2) ◽  
pp. 81-90
Author(s):  
Raudatul Jannah ◽  
Nurhayati Nurhayati ◽  
Cut Nur Ichsan
Keyword(s):  
Significant Interaction ◽  
Leaf Length ◽  
Ficus Carica ◽  
Growth And Yield ◽  
Leaf Width ◽  
Harvest Time ◽  
Branch Diameter ◽  
Number Of Leaves ◽  
Banda Aceh ◽  
Number Of Branches

Abstrak. Penelitian ini bertujuan untuk mengetahui pengaruh dosis pupuk KCl dan persentase defoliasi yang tepat serta interaksi antara kedua faktor tersebut terhadap pertumbuhan dan hasil tanaman  tin. Penelitian ini dilaksanakan di Rumah Kasa komplek Fakultas Pertanian, Universitas Syiah Kuala, Darussalam, Banda Aceh. Pelaksanaan penelitian dimulai dari bulan Juli sampai September 2019. Rancangan penelitian yang digunakan adalah Rancangan Petak Terpisah pola RAK faktorial 3 x 2 dengan 3 ulangan. Faktor yang diteliti yaitu pengaruh dosis pupuk KCl yang terdiri atas 3 taraf (0 g-1tan-1thn, 700 g-1tan-1thn, 800 g-1tan-1thn) dan persentase defoliasi yang terdiri atas 2 taraf (30% dan 60%). Hasil penelitian menunjukkan  bahwa dosis pupuk KCl berpengaruh  sangat nyata terhadap pertambahan jumlah  daun 2, 4, 6, 8 dan 10 MSP (minggu setelah  perlakuan) ,  pertambahan panjang daun 2 dan 10 MSP,  pertambahan lebar daun 2 dan 10 MSP, pertambahan jumlah cabang 2 dan 10 MSP, pertambahan diameter cabang 2 dan 10 MSP, pertambahan jumlah buah 2, 4, 6, 8 dan 10 MSP dan jumlah buah total serta berat buah 2, 4, 6, 8 dan 10 MSP dan berat buah total. Pertumbuhan dan hasil tanaman tin yang terbaik dijumpai pada dosis pupuk KCl 800 g-1tan-1thn dengan pertambahan hasil rata-rata 15,4 t. ha-1untuk2 bulan masa panen. Hasil penelitian menunjukkan bahwa persentase defoliasi berpengaruh sangat nyata terhadap pertambahan jumlah daun 2, 4, 6, 8 dan 10 MSP, pertambahan panjang daun 2 dan 10 MSP, pertambahan lebar daun 2 dan 10 MSP, pertambahan jumlah cabang 2 dan 10 MSP, pertambahan diameter cabang 2 dan 10 MSP, pertambahan jumlah buah 2 dan 4 MSP dan berat buah 10 MSP total, berpengaruh nyata terhadap jumlah buah 6, 8 dan 10 MSP dan jumlah buah total serta berat buah 2, 4, 6, 8 MSP. Pertumbuhan dan hasil tanaman tin terbaik dijumpai pada defoliasi daun 60% dengan pertambahan hasil rata-rata 12,6 t. ha-1untuk2 bulan masa panen. Terdapat interaksi yang sangat nyata antara dosis pupuk KCl dan persentase defoliasi terhadap pertambahan jumlah daun 4, 6 dan 8 MSP, pertambahan panjang daun 2 dan 10 MSP, pertambahan lebar daun 2, jumlah cabang 2 dan 10 MSP, pertambahan diameter cabang 2 dan 10 MSP dan jumlah buah 2 MSP dan berpengaruh nyata terhadap pertambahan jumlah daun 2 MSP. Pertumbuhan dan hasil tanaman tin terbaik dijumpai pada perlakuan dosis pupuk KCl 800 g-1tan-1thn dengan defoliasi 60%.The Effect of Potassium Chloride (KCl) Fertilizer Doses and DefoliationPercentage on the Growth and the Yield of Fig (Ficus carica L.)Abstract. This research aims to examine the effect of potassium chloride (KCl) fertilizer doses and defoliation percentage on the growth and the production of Fig (Ficus carica L.) and the interaction between these factors on the growth and production of fig plants. This research was conducted at the Screen House of Faculty of Agriculture, Syiah Kuala University, Darussalam, Banda Aceh. The research was carried out from July to September 2019. The research used split-plot design of 3 x 2 factorial RCBD with 3 replications. KCl fertilizer doses consisting of 3 levels (0 g tree-1 yr-1,700 g tree-1yr-1, 800 g tree-1 yr-1) and defoliation percentage consisting of 2 levels (30 % and 60 %). The result shows that KCl fertilizer dose has a very significant effect on increasing the number of leaves to 2, 4, 6, 8 and 10 WAT (week after treatment), increasing leaf length at 2 and 10 WAT, leaf width at 2 and 10 WAT, the number of branches at 2 and 10 MSP, branch diameter at 2 and 10 WAT, the number of fruits at 2, 4, 6, 8 and 10 WAT, and fruit weight at 2, 4, 6, 8 and 10 WAT. The best growth and yield of fig plants were found at a dose of KCl 800 g tree-1 yr-1with 15,4 t. ha-1 increasing fot two mounths harvest time. Percentage of defoliation has a very significant effect on increasing the number of leaves at 2, 4, 6, 8 and 10 WAT, the number of branches at 2 and 10 MSP, the number of fruits at 6 WAT, significantly affected in increasing the number of leaves at 2 and 10 WAT, leaf width at 2 WAT, the number of branches at 2 MSP, branch diameter at 2 and 10 WAT, the number of fruits at 4, 8 and 10 WAT. The best growth and yield of fig plants were found at 60% defoliation treatment1with 12,6 t. ha-1 increasing fot two mounths harvest time. Thus, there was a very significant interaction between the dose of KCl fertilizer and the percentage of defoliation on the increasing the number of leaves at 4, 6 and 8 WAT), leaf length at 2 and 10 WAT, leaf width at 2 WAT, the number of branches at 2 and 10 MSP, branch diameter at 2 and 10 WAT, the number of fruits at 2 WAT and significant interaction on the number of leaves to 2 WAT. The best growth and  yield of fig plants were found in a combination of a dose of 800 g tree-1 yr-1 of KCl fertilizer with 60% of defoliation.

scholarly journals Penampilan Karakter Morfologi dan Fisiologi Tiga Kelapa Hibrida Kopyor dan Tetuanya [Performance Of Morphology And Physiology Characters Of Three Coconut Hybrids Of Kopyor and Its Parent]

Buletin Palma ◽  
2020 ◽  
Vol 21 (2) ◽  
pp. 88
Author(s):  
M Nur ◽  
Jeanne Palit ◽  
Putri Wulan Adiningrum ◽  
Djuito Lumintang ◽  
NFN Miftahorrachman
Keyword(s):  
Leaf Length ◽  
Yellow Dwarf ◽  
Stem Length ◽  
Good Growth ◽  
Chlorophyll B ◽  
Total Chlorophyll ◽  
Open Pollination ◽  
Brown Dwarf ◽  
Number Of Leaves ◽  
Physiological Characters

<p align="”justify”">Morphological and physiological characters are indicator parameters in plants to determine whether plants have good growth or vice versa. This study aims to determine the morphological and physiological characters of the three kopyor hybrid coconuts with three female parents. The study was designed in a Randomized Block Design consisting of six treatments, namely GKK x DKS, GHK x DKS, and GCK x DKS hybrid coconuts as well as three female parents namely Kopyor Yellow Dwarf (GKK) open pollination, Kopyor Green Dwarf (GHK) open pollination, and Kopyor Brown Dwarf (GCK) open pollination. The replication was three times and each experimental unit consisted of 15 plants. Morphological parameters observed included stem length, girth of stem, number of leaves, leaf length, number of leaflets, length of leaflets, leaflet width, and length of the petiole. Phisiological parameters consist of chlorophyll a, chlorophyll b, total chlorophyll and stomata density. The results of analysis of variance and HSD follow-up tests showed different morphological characters were girth of stem (LB) between the treatment of GKK x DKS and the treatment of GHK x DKS, GCK x DKS, and Kopyor Yellow dwarf open pollination; number of leaves (JD) between GKK x DKS and GCK x DKS, Kopyor Green Dwarf open pollination, and Kopyor Brown Dwarf open pollination treatments; leaf length (PD) between GKK x DKS treatment and GCK x DKS and Kopyor Green Dwarf treatments; the number of leaflets (JAD) between the Kopyor Green Dwarf open pollination and GKK x DKS, Kopyor Brown Dwarf open pollination, and Kopyor Green Dwarf open pollination treatments. The difference ofphysiological characters are chlorophyll b between the GKK x DKS treatment and the GHK x DKS, GCK x DKS, and Kopyor Green Dwarf open pollination treatments; total chlorophyll between GKK x DKS treatment with GHK x DKS, GCK x DKS, Kopyor Green Dwarf open pollination, and Kopyor Brown Dwarf open pollination treatments. The average of the 12 parameters observed, the GHK x DKS treatment was the most vigorous among the treatments, while the weakest was the GKK x DKS treatment and its parent Kopyor Yellow Dwarf open pollination.</p><p align="center"><strong>ABSTRAK</strong></p><p align="”justify”">Karakter morfologi dan fisiologi merupakan parameter indikator pada tanaman untuk mengetahui apakah tanaman memiliki pertumbuhan yang baik atau sebaliknya.Penelitian ini bertujuan untuk mengetahui keragaan karakter morfologi dan fisiologi tiga kelapa hibrida kopyor dengan tiga tetua betinanya.Penelitian dirancang dalam Rancangan Acak Kelompok terdiri dari enam perlakuan, yaitu kelapa hibrida GKK x DKS, GHK x DKS, dan GCK x DKS; serta tiga tetua betinanya yaitu Genjah Kuning Kopyor (GKK) penyerbukan terbuka, Genjah Hijau Kopyor (GHK) penyerbukan terbuka, dan Genjah Cokelat Kopyor (GCK) penyerbukan terbuka. Penelitian diulang sebanyak tiga kali dan setiap unit percobaan terdiri dari 15  tanaman. Parameter morfologi yang diamati meliputi panjang batang, lingkar batang, jumlah daun, panjang daun, jumlah anak daun, panjang anak daun, lebar anak daun, dan panjang petiole. Paramater fisiologi terdiri dari kandungan klorofil a, klorofil b, klorofil total dan kepadatan stomata. Hasil analisis sidik ragam dan uji lanjut HSD menunjukkan karakter morfologi yang berbeda adalah lingkar batang (LB) antara perlakuan GKK x DKS dengan perlakuan GHK x DKS, GCK x DKS, dan GKK penyerbukan terbuka; jumlah daun (JD) antara perlakuan GKK x DKS dengan perlakuan GCK x DKS, GHK penyerbukan terbuka, dan GCK penyerbukan terbuka; panjang daun (PD) antara perlakuan GKK x DKS dengan perlakuan GCK x DKS dan GHK penyerbukan terbuka; jumlah anak daun (JAD) antara perlakuan GHK penyerbukanterbuka dengan perlakuan GKK x DKS, GCK penyerbukan terbuka, dan GKK penyerbukan terbuka.Karakter fisiologi yang berbeda adalah klorofil b antara perlakuan GKK x DKS dengan perlakuan GHK x DKS, GCK x DKS, dan GHK penyerbukan terbuka; klorofil total antara perlakuan GKK x DKS dengan perlakuan GHK x DKS, GCK x DKS, GHK penyerbukan terbuka, dan GCK penyerbukan terbuka. Rata-rata 12 parameter yang diamati, perlakuan GHK x DKS paling vigor diantara perlakuan, sedangkan paling lemah vigoritasnya perlakuan GKK x DKS dan tetuanya GKK penyerbukan terbuka. Hasil penelitian diharapkan bisa  memberipilihanantara hibrida kopyor hasil silangan antara GHK x DKS atau GCK x DKS bagi pengembang tipe kelapa hibrida kopyor yang akan digunakan</p>

scholarly journals PENGAPLIKASIAN RADIASI ELEKTROMAGNETIK TERHADAP PERTUMBUHAN VEGETATIF TANAMAN CABAI MERAH (Capsicum Annum L.)

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Bagus Santoso ◽  
Amarullah Amarullah ◽  
Dwi Santoso
Keyword(s):  
Electromagnetic Radiation ◽  
Plant Height ◽  
Block Design ◽  
Leaf Length ◽  
Stem Diameter ◽  
Capsicum Annum ◽  
Randomized Block Design ◽  
Number Of Leaves ◽  
Screen House ◽  
Number Of Branches

ABSTRACT  Chili Plants (Capsicum annum L.) originating from the tropics and subtropicsAmericas, especially Colombia, South America, and continue to spread to Latin America. Evidence of chili cultivation was first discovered in Peru's historical siteand leftover seeds that are more than 5000 years old BC in a cave in Tehuacan, Mexico. The spread of chili to the whole world including countries in Asia, like Indonesia carried out by Spanish and Portuguese traders. The purpose of this study was to determine the effect of electromagnetic radiation on the growth and yield of red chilies in the city of Tarakan.This research was conducted from September 2018 to January 2019, at the screen house of the Faculty of Agriculture, Borneo Tarakan University. This study was prepared using factorial Randomized Block Design (RBD) with 5 treatments repeated 5 times. The factors studied were large electromagnetic radiation 56 microtesla with exposure time (P0) 0 minutes, (P1) 20 minutes, (P2) 40 minutes, (P3) 60 minutes, (P4) 80 minutes. Observation parameters; plant height, number of leaves, leaf length, leaf width, stem diameter and number of branches. Analysis of variance using variance ANOVA with a confidence level of 95% and if it is significantly different it will be continued with DMRT further testing.The results of the study show that: 1) Observation parameters that showed statistically significant differences were parameters of plant height, number of branches and number of leaves while parameters that did not show different results were parameters of leaf length, leaf width and stem diameter., 2) The best treatment for each observation parameter is P2 treatment (exposure to electromagnetic radiation for 40 minutes), and the lowest treatment is treatment P0 (without exposure to electromagnetic radiation). Suggestions from this study should be carried out further research on the use of electromagnetic radiation in the vegetative phase until the results of red chili plants (Capsicum annum L.)Keywords: chili, electromagnetics radiation, Randomized Block Design  ABSTRAK Tanaman cabai (Capsicum annum L.) berasal dari dunia tropika dan subtropika Benua Amerika, khususnya  Colombia, Amerika Selatan, dan terus menyebar ke Amerika Latin. Bukti budidaya cabai pertama kali ditemukan dalam tapak galian sejarah Peru dan sisaan biji yang telah berumur lebih dari 5000 tahun SM di dalam gua di Tehuacan, Meksiko. Penyebaran cabai ke seluruh dunia termasuk negara-negara di Asia, seperti Indonesia dilakukan oleh pedagang Spanyol dan Portugis. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh radiasi elektromagnetik terhadap pertumbuhan dan hasil tanaman cabai merah di kota Tarakan. Penelitian ini dilaksanakan pada tahun 2018, di screen house Fakultas Pertanian Universitas Borneo Tarakan. Penelitian ini disusun dengan menggunakan Rancangan Acak Kelompok (RAK) faktorial dengan 5 perlakuan diulang sebanyak 5 kali. Faktor yang diteliti yaitu besar radiasi elektromagnetik 56 mikrotesla dengan lama pemaparan (P0) 0 menit, (P1) 20 menit, (P2) 40 menit, (P3) 60 menit, (P4) 80 menit. Parameter pengamatan; tinggi tanaman, jumlah daun, panjang daun, lebar daun, diameter batang dan jumlah cabang. Analisis ragam menggunakan sidik ragam Anova dengan tingkat kepercayaan 95% dan apabila berbeda nyata maka akan dilanjut dengan uji lanjut DMRT. Hasil penelitian menunjukkan bahwa: 1) Parameter pengamatan yang menunjukkan hasil berbeda nyata secara statistik adalah parameter tinggi tanaman, jumlah cabang dan jumlah daun sedangkan parameter yang tidak menunjukkan hasil yang berbeda nayata adalah parameter panjang daun, lebar daun dan diameter batang, 2) Perlakuan terbaik untuk setiap parameter pengamatan adalah perlakuan P2 (pemaparan radiasi elektromagnetik selama 40 menit), dan perlakuan terendah adalah perlakuan P0 (tanpa pemaparan radiasi elektromagnetik). Saran dari penelitian ini sebaiknya dilakukan penelitian lanjutan mengenai penggunaan radiasi elektromagnetik pada fase vegetatif sampai hasil tanaman cabai merah (Capsicum annum L.)Kata kunci : cabai merah, radiasi elektromagnetik, Rancangan Acak Kelompok

scholarly journals Planting Time and Flurprimidol Treatment Influence the Growth and Flowering of Lachenalia

2016 ◽  
Vol 26 (3) ◽  
pp. 293-298 ◽  
Author(s):  
Anna Kapczyńska ◽  
Małgorzata Malik
Keyword(s):  
Foliar Application ◽  
Foliar Spray ◽  
Leaf Length ◽  
Planting Date ◽  
Stem Length ◽  
Stem Height ◽  
Planting Time ◽  
Inflorescence Stem ◽  
Number Of Leaves ◽  
Inflorescence Length

The growth and flowering of ‘Rupert’ and ‘Ronina’ lachenalia (Lachenalia) in a greenhouse environment were manipulated by varying planting times and flurprimidol treatments. Bulbs were planted in November, December, January, and February. At each planting date, the following flurprimidol treatments were tested: soaking the bulbs before planting (15 and 30 mg·L−1) or a single foliar spray (15, 30, 45, and 60 mg·L−1). The results showed that foliar application of flurprimidol was ineffective in controlling inflorescence stem height and inflorescence length; only soaking bulbs of ‘Rupert’ in flurprimidol at the concentration of 30 mg·L−1 shortened the inflorescence stem height. Moreover, soaking bulbs in the concentration of 30 mg·L−1 may be recommended for potted lachenalia production, as shorter and wider leaves were obtained and every planted bulb emerged and flowered. The later the date of planting of the bulbs, the more quickly the plants began to flower. As planting time was delayed, inflorescence stem length and leaf length decreased, and the number of florets and leaf width increased. Soaking the bulbs in the retardant (30 mg·L−1) delayed the emergence of flowers for 5–6 days, but the retardant did not affect the number of leaves or the number of florets per inflorescence. Regardless of the factors applied, the two cultivars of lachenalia differed with respect to each of the analyzed traits.

scholarly journals Genetic divergence of Nigerian and Indian pearl millet accessions based on agronomical and morphological traits

2017 ◽  
Vol 62 (2) ◽  
pp. 115-131
Author(s):  
David Animasaun ◽  
Joseph Morakinyo ◽  
Rama Krishnamurthy ◽  
Oba Mustapha
Keyword(s):  
Plant Height ◽  
Pearl Millet ◽  
Morphological Traits ◽  
Genetic Relatedness ◽  
Agronomic Traits ◽  
Crop Improvement ◽  
Principal Component ◽  
Leaf Length ◽  
Leaf Width ◽  
Number Of Leaves

The study assessed the genetic diversity of pearl millet accessions grown in Nigeria and India based on morpho-agronomic traits in order to identify genotypes with superior characters which could be utilized in breeding programmes. Twenty-four pearl millet accessions were grown and evaluated for agronomic and morphological traits during the dry and wet seasons of 2015-2016. Data collected on the accessions using standard descriptors were analysed statistically. IP22281 had the highest mean plant height (108.90 cm) while NGB00531 recorded the lowest (61.02 cm). Significant intra-specific variation existed in number of leaves per plant, leaf length, leaf width, number of nodes and internode length, however, stem girth was similar for the accessions. Tillering was generally poor with the highest value (1.60 tillers per plant) found in NGB00531. A significant positive correlation occurred between plant height, number of leaves, leaf length and leaf width. Panicles emerged between 44 and 56 days and NGB00548 had the shortest maturity time. Also, panicle length and peduncle diameter varied significantly for the accessions. The highest grain yield and 1000-grain weight were recorded in NGB00616 and the lowest yield and weight were recorded in IP22269. The principal component analysis grouped the accessions into four clusters, comprising mixtures of Nigerian and Indian members. Similarly, the dendrogram grouped the accessions into two main groups which were sub-divided into smaller clusters with accessions from Nigeria and India in the same cluster. The study concludes that variations in morpho-agronomic and yield characters among the accessions studied could be harnessed for crop improvement. The clustering pattern of these accessions indicated their genetic relatedness, possibly from the same progenitor, but separation by geographical or ecological isolation mechanisms.

scholarly journals Morphological and anatomical relationships in Alpine-Dinaric populations of the genus Iris L., Pallidae series (A. Kern.) Trinajstić (Iridaceae)

2014 ◽  
Vol 69 (4) ◽  
pp. 285-291 ◽  
Author(s):  
Bożena Mitić ◽  
Toni Nikolić ◽  
Zlatko Liber
Keyword(s):  
Multivariate Statistics ◽  
Morphological Characteristics ◽  
Leaf Length ◽  
Epidermal Cells ◽  
Stem Length ◽  
Geographical Differentiation ◽  
Anatomical Features ◽  
Number Of Leaves ◽  
Mixed Populations ◽  
Cultivated Populations

The relationships within the <em>Alpine-Dinaric</em> and cultivated populations of the genus <em>Iris</em>, <em>Pallidae</em> series, have been analysed. Seven morphological characteristics (stem length, length of the largest leaf, greatest width of the largest leaf, length of the smallest leaf, greatest width of the smallest leaf, the number of leaves and the number of flowers) and seven leaf anatomical (length and width of stomata, length and width of epidermal cells, number of stomata and epidermal cells per mm'- and length of styloids) have been used for this purpose. Relationships between populations were analysed by methods of multivariate statistics (Cluster, PCA and MST analyses). The results of Cluster and PCA analyses showed that, owing to leaf anatomical features, five main groups of the populations could be distinguished within the <em>Pallidae</em> series. Four of them belong to the species <em>L. pallida</em>, <em>L. cengialti</em>, <em>L. illyrica</em> and <em>I. pseudopallida</em>. The MST analyses showed that the fifth group contained mixed populations of <em>I. illyrica</em> and <em>I. pseudopallida</em>. The results point at the lack of taxonomic usefulness of the leaf anatomical features analysed and indicate that they caused successive geographical differentiation of the populations of the <em>Pallidae</em> series.

scholarly journals Effects of Drought on Morphological Traits in Some Cowpea Genotypes by Evaluating Their Combining Abilities

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Amos Afolarin Olajide ◽  
Christopher Olumuyiwa Ilori
Keyword(s):  
Morphological Traits ◽  
Block Design ◽  
Terminal Leaflet ◽  
Narrow Sense Heritability ◽  
Additive Variance ◽  
Randomized Complete Block Design ◽  
Number Of Leaves ◽  
Effects Of Drought ◽  
Dominant Genes ◽  
Number Of Branches

An evaluation was conducted to understand the genetic effects of combining ability for four different morphological traits, on 42 hybrids in randomized complete block design with three replications in water-stressed and well-watered environments. The significance of the additive variance (D) and dominance variance (H1) indicated the presence of both additive and nonadditive gene actions in both environments. Among the parents, there was asymmetrical distribution of positive and negative dominant genes and the preponderance of overdominance gene action for all the traits in both environments. This study also indicated a minimum of ten genes for plant height in water-stressed environment and minimum of three and eight genes for terminal leaflet area and number of leaves per plant in both environments, respectively. Estimates of narrow-sense heritability ranged from 13.0% for number of branches per plant in water-stressed to 95.0% in well-watered environment for terminal leaflet area. The study revealed that Danilla, IT93K-432-1, and IT97K-499-35 were the best general combiners for all traits, Danilla × IT97K-499-35, and Danilla × IT93K-432-1 were found to be the best specific combiners for all traits in water-stressed environment. Genetic interactions, additive × additive and additive × dominance, were more pronounced in the inheritance of the traits. This indicated that the selection for these traits should be delayed till advanced generations.

scholarly journals Effects of Gamma Irradiation on Agromorphological Characteristics of Okra (Abelmoschus esculentus L. Moench.)

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Aaron Tettey Asare ◽  
Francis Mensah ◽  
Samuel Acheampong ◽  
Elvis Asare-Bediako ◽  
Jonathan Armah
Keyword(s):  
Seedling Survival ◽  
Block Design ◽  
Leaf Length ◽  
Growth And Yield ◽  
Randomized Complete Block Design ◽  
Number Of Leaves ◽  
Gamma Irradiated ◽  
Higher Doses ◽  
100 Seed Weight ◽  
Number Of Branches

Cultivation of okra in Ghana is challenged by low yield due to lack of improved varieties. Gamma irradiated okra seeds can generate genetic variability to improve the crop. Samples of 150 seeds, each of okra genotype, UCCC6, were irradiated with 400 Gy to 1000 Gy using cobalt 60 source at a dose rate exposure of 121.58 Gy/hr. There were 40 stands comprising single plant per stand in three replications per treatment in a randomized complete block design outlay. Seedling survival, plant height, number of leaves, stem diameter, number of branches, leaf length and width, days to 50% flowering, number of fruits, length and weight of fruit, number of seeds, and 100-seed weight decreased significantly (P≤0.05) with increasing doses of gamma rays. Seedling survival was highest (88%) at 400 Gy, followed by control (81%). However, 600 Gy, 800 Gy, and 1000 Gy had 61%, 41%, and 17% seedling survival, respectively, with LD50 at 720 Gy. Significant (P≤0.05) correlations existed between growth and yield components. Optimum growth and yield in okra were induced by 400 Gy but the higher doses had growth retardation effects and the induced variability can be assessed at M2 generation.

scholarly journals 250 Using Leaf Area Devices (LADS) to Estimate Total Leaf Area of Coffee Plants

HortScience ◽  
1999 ◽  
Vol 34 (3) ◽  
pp. 485C-485
Author(s):  
Guofan Liu ◽  
Kent D. Kobayashi
Keyword(s):  
Leaf Area ◽  
Leaf Length ◽  
Total Leaf Area ◽  
Estimation Errors ◽  
Total Leaf ◽  
Length Width ◽  
Leaf Density ◽  
Number Of Leaves ◽  
Coffee Plants ◽  
The Mean

It is difficult to estimate the total leaf area of coffee plants with accuracy due to the large number of leaves and the high leaf density of the plant canopy. In 1996, on Maui, Hawaii, 98 leaves of various sizes were randomly collected for each of five cultivars of Coffea arabica L. The cultivars used were `Guadalupe', `Guatemalan', `Mokka', `Red Catuai', and `Yellow Caturra'. Leaf length, width, and area were measured. Seventy-five leaves were used to develop leaf area models, and the remaining leaves were used to test the accuracy of the models using a 1:1 line. We then developed leaf area devices (LADs), which were made of sheet plastic and shaped to resemble coffee leaves. There were three groups of areas in the leaf area devices, based on leaf sizes. Total leaf area (TLA) contained three components. Each component related to the mean leaf area (k) and the number of leaves (n) in that group. The model for the total leaf area was: TLA = k1n1 + k2n2 + k3n3, where k is a constant in each group. The estimation errors for the different cultivars ranged from 5.6% to 12.3% for 1-year-old plants (four cultivars) and from 1.9% to 7.8% for mature plants (five cultivars). By using the LADs and counting the number of leaves, we can obtain the total leaf area for coffee plants in the field.

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