scholarly journals Evaluation of Eucalyptus Clones Under Seasonal Waterlogging Conditions in South-Western Punjab

2020 ◽  
Vol 8 (2) ◽  
pp. 98-103
Author(s):  
Avtar Singh ◽  
GPS Dhillon
Keyword(s):  
Rapid Growth ◽  
Growth Traits ◽  
Block Design ◽  
Tree Height ◽  
Volume Index ◽  
Soil Types ◽  
Breast Height ◽  
Plot Size ◽  
Randomized Block Design ◽  
Survival Of Seedlings

Eucalyptus is widely planted genus in many continents due to its rapid growth, several uses and good adaptability to climates and soil types. This study was based on nine Eucalyptus clones/progenies (C-413, C-3020, C-2135, C-7, C-2045, C-411, C-526, C-316 and seedlings) planted at farmers field experiencing seasonal waterlogging. The experiment was planted following randomized block design with plot size of 12 trees replicated four times. The survival of Seedlings, C-7, C-413, C-526 and C-316 was better and varied from 78.3 to 88.3 percent. Significant differences were found for tree height and diameter at age of 2 and 4 year, and volume index at age of 4 year. The tree height and diameter at breast height at 4 year age varied from 5.93 to 6.76 m and 56.4 to 87.6 mm, respectively. The relative ranking on basis of volume index was C-413>C-316>C-411>C-7>C-526. Clones C-413, C-316, C-7 and C-526 were promising based on adaptability and growth traits.

scholarly journals Field Evaluation of Populus deltoides Bartr. ex Marsh. at Two Sites in Indo-gangetic Plains of India

2010 ◽  
Vol 59 (1-6) ◽  
pp. 1-7 ◽  
Author(s):  
G. P. S. Dhillon ◽  
Avtar Singh ◽  
Pritpal Singh ◽  
D. S. Sidhu
Keyword(s):  
Populus Deltoides ◽  
Growth Traits ◽  
Tree Height ◽  
Field Evaluation ◽  
Site Conditions ◽  
Genetic Advance ◽  
Gangetic Plains ◽  
Diameter At Breast Height ◽  
Breast Height ◽  
Northwestern India

Abstract Results from clonal trials of Populus deltoides conducted in two distinct agroclimatic regions of Punjab in northwestern India are reported and discussed. Sixteen clones were evaluated at Hambran and Bathinda where commonly grown clone ‘G-48’ was considered as control. Significant differences among clones (P < 0.001) were observed for diameter at breast height (DBH), tree height and volume at the age of four and six years under both the site conditions. Clone ‘L-48’ ranked first for volume at six year age at both sites and was followed by clone ‘Ranikhet’. The respective superiority for volume of these clones over control was 44.8 and 23.2 per cent at Hambran and 72.5 and 30.7 per cent at Bathinda. All growth traits registered significantly higher values at Hambran in comparison to those at Bathinda. Clone x site interaction was also significant (P < 0.001). The clones ‘L-168’, ‘154/86’, ‘Solan-z’ and ‘170/88’ experienced huge fluctuation in ranking between sites for volume at 6-year age. The DBH and height showed significant and positive correlation with each other and with tree volume at all the age combinations. The clonal mean heritability was quite high both at Hambran (0.73-0.86) and Bathinda (0.80-0.95). The genetic advance were the highest for volume (33.34-64.26%) and the lowest (10.65-22.79%) in case of height.

scholarly journals Pembentukan Core Collection untuk Sumber Daya Genetik Padi Toleran Kekeringan

2016 ◽  
Vol 17 (2) ◽  
pp. 104
Author(s):  
Tiur S. Silitonga ◽  
Andari Risliawati
Keyword(s):  
Core Collection ◽  
Upland Rice ◽  
Block Design ◽  
Yield Potential ◽  
Plant Spacing ◽  
Plot Size ◽  
Central Java ◽  
Drought Tolerant ◽  
Randomized Block Design ◽  
Rice Genetic

<p>The Development of Core Collection for Rice Genetic Resources Tolerant to Drought. The experiment was conducted in dry season, July-September 2009 at the research farm in Jakenan, Central Java and planted in randomized block design (RBD) arrangement by using 150 accessions with the plot size of 5 m x 1 m, with plant spacing 25 cm x 20 cm and three replications. Another experiment used as control and grown as upland rice without drought stresses by watering twice in a week was planted in RBD arrangement with two replications, plot size 5 m x 1 m and spacing 25 cm x 20 cm. The results showed that 26 varieties were selected for sub core collection for drought tolerance. Jatiluhur and B.9645-E-Mr-89 had the highest yield potential respectively 3,88 dan 3,77 t/h. All of the varieties with tolerant to drought were selected for core collection. This would be very important as they could be directly grown by farmers as tolerant varieties or used as sources of gene in the breeding program to improve varieties for drought tolerant with high yielding potential.</p><p> </p><p><strong>Abstrak</strong></p><p>Pembentukan core collection untuk sumber daya genetik padi toleran kekeringan. Penelitian dilaksanakan pada musim kemarau, Juli-September 2009 di Kebun Penelitian Balai Penelitian Lingkungan Pertanian Jakenan, Jawa Tengah, dengan rancangan acak kelompok, tiga ulangan, menggunakan 150 aksesi yang ditanam pada petak berukuran 5 m x 1 m. Tanaman disiram setiap tiga hari sekali sampai tumbuh baik dan setelah berumur 25 hari tanaman mulai dikeringkan. Sebagai petak pembanding adalah tanaman padi gogo biasa yang disiram setiap dua seminggu sekali sampai panen. Pertanaman pembanding ditanam dengan jarak 25 cm x 20 cm. Dari penelitian ini terpilih 26 varietas toleran kekeringan dengan skor 1-5. Di antara aksesi ini terdapat varietas yang berumur genjah dan sedang (115-135 hari), sehingga waktu panennya agak berbeda. Varietas Jatiluhur dan galur B.9645- E-Mr-89 mempunyai potensi hasil paling tinggi, masingmasing 3,88 dan 3,77 t/ha dan toleran terhadap kekeringan. Aksesi yang toleran terhadap kekeringan terutama yang mempunyai potensi hasil tinggi, dapat langsung digunakan oleh petani atau sebagai sumber gen dalam perakitan varietas unggul toleran kekeringan dan berpotensi hasil tinggi.</p>

scholarly journals EFICIÊNCIA DE DUAS VARIAÇÕES ESTRUTURAIS DO MÉTODO DE AMOSTRAGEM DE ÁREA FIXA EM PLANTAÇÕES DE Pinus taeda

FLORESTA ◽  
2013 ◽  
Vol 43 (4) ◽  
pp. 621
Author(s):  
João Paulo Druszcz ◽  
Nelson Yoshihiro Nakajima ◽  
Sylvio Pellico Netto ◽  
Sebastião do Amaral Machado ◽  
Nelson Carlos Rosot ◽  
...  
Keyword(s):  
Pinus Taeda ◽  
Relative Efficiency ◽  
Block Design ◽  
Basal Area ◽  
Average Diameter ◽  
Breast Height ◽  
Variable Diameter ◽  
Randomized Block Design ◽  
Fixed Area ◽  
Pinus Taeda L

Este estudo foi conduzido em três diferentes condições de plantações de Pinus taeda L., sem desbastes, com 10, 9 e 7 anos de idade, 2.000 árvores por hectare e diferentes inclinações no terreno, localizados no Estado do Paraná. O objetivo foi avaliar a eficiência do inventário florestal, utilizando-se a amostragem de área fixa com a estrutura de parcela circular (PC) e conglomerado em cruz (CC), através da análise do comportamento quanto às precisões e eficiências relativas nas estimativas das seguintes variáveis: diâmetro médio (cm), número de árvores por ha, área basal (m2/ha) e volume total (m3/ha). Para isso, utilizou-se o delineamento em blocos casualizados com 40 unidades amostrais para a PC e 10 unidades para o CC, sendo este composto por 4 subunidades circulares. Concluiu-se que, para as variáveis diâmetro médio (cm), número de árvores (N/ha), área basal (m2/ha) e volume total (m3/ha), indica-se a utilização do método de área fixa com PC, tendo em vista a maior eficiência no levantamento dessas variáveis.Palavras-chave: Eficiência relativa; precisão; reflorestamento. AbstractStructural efficiency of two variations of method of sampling of fixed area in plantations of Pinus taeda. This study was carried out in three different stands of Pinus taeda L., unthinned and aged 10, 9 and 7 years. The stands have 2.000 trees per hectare and are located in Parana State. The aim was to evaluate the efficiency of inventories using circular plot (PC) and cross cluster (CC) by analyses of behavior towards accuracies and relative efficiencies for estimation of the following variables: average diameter at breast height, number of trees, basal area and total volume per hectare. For this study, it was taken a sample of 40 units to the PC structure and 10 units for the CC structure, which is composed of four circular subunits, and it was used the randomized block design. It was concluded that for the variable diameter (cm), number of trees (ha), basal area (m2/ha) and total volume (m3/ha) it is indicated the use of PC, since its greater efficiency in the survey of these variables.Keywords: Relative efficiency; accuracy; reforestation.

scholarly journals Genetics and expected selection gain for growth traits in Eugenia dysenterica DC. populations

Bragantia ◽  
2009 ◽  
Vol 68 (3) ◽  
pp. 629-637 ◽  
Author(s):  
Ananda Virginia de Aguiar ◽  
Roland Vencovsky ◽  
Lázaro José Chaves ◽  
Mara Fernandes Moura ◽  
Lizz Kezzy de Morais
Keyword(s):  
Genetic Variation ◽  
Genetic Parameters ◽  
Growth Traits ◽  
Block Design ◽  
Genetic Material ◽  
Germplasm Collection ◽  
Seed Orchard ◽  
Seedling Seed Orchard ◽  
Randomized Block Design ◽  
Eugenia Dysenterica

The objective of this study was to estimate genetic parameters of quantitative traits in a living germplasm collection of Eugenia dysenterica. The genetic material consisted of 110 progenies derived from 10 natural Eugenia dysenterica subpopulations sampled in the southeastern region of the state of Goiás. The experiment was established in a complete randomized block design, with 110 treatments, four replications and one tree per plot. The study variables were total height, stem diameter and respective growth rates. After the analysis of variance some genetic parameters were estimated. The levels of genetic variation in the collection were high and the highest proportion was found within subpopulations. Highest coefficients of heritability and genetic variation were observed in subpopulations from the counties Catalão, Três Ranchos, Cristalina and Senador Canedo. Considering the promising expected progress for growth traits, this collection can be converted into an unrogued seedling seed orchard, aiming the production of improved seed.

scholarly journals Breeding value of Norway spruce (Picea abies [L.] Karst.)

2012 ◽  
Vol 50 (No. 1) ◽  
pp. 17-23
Author(s):  
Rożkowski KR
Keyword(s):  
Survival Rate ◽  
Norway Spruce ◽  
Growth Traits ◽  
Block Design ◽  
Basal Area ◽  
Tree Height ◽  
Breeding Value ◽  
Cross Sectional ◽  
Qualitative Traits ◽  
Crown Density

This is the first report on measurements and observations of an experimental plot of 35-year-old Norway spruce, established in 1970 by the Institute of Dendrology at K&oacute;rnik, where progenies of 22 plustrees from the Kłodzko Forest District were planted. The experiment was established in an incomplete block design of 20 families with 3 replications. Survival rate and growth traits determining productivity (plant height or basal area &ndash; stem cross-sectional area at breast height per 1&nbsp;ha) were assessed in several years, and qualitative traits (trunk straightness; degree of natural pruning; thickness, length and angle of branches; crown density; presence of galls caused by the aphids Adelges laricis Vall. and Sacchiphantes viridis Ratz.) were evaluated once in 2001. Analysis of variance revealed significant differences between the half-sib families in survival rate and productivity but no significant differences in qualitative traits. Statistically significant positive correlations were found between trunk straightness at the age of<br />&nbsp;36 years and height of 2-year-old seedlings in the nursery, and between the degree of natural pruning at the age of 36 years and both tree height at the age of 9 years and basal area at the age of 13 years.

Evaluation of some insecticides against pigeonpea pod fly Melanagromyza obtusa Mall

2015 ◽  
Vol 49 (5) ◽  
Author(s):  
Mahesh P. Pathade ◽  
Pankaj B. Salunke ◽  
S. L. Borkar
Keyword(s):  
Effective Treatment ◽  
Block Design ◽  
Plot Size ◽  
Randomized Block Design ◽  
Agricultural Entomology ◽  
Initiation Stage

The present investigation was conducted during <italic>kharif</italic> 2011-12 on field of Department of Agricultural Entomology, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. The experiment was planned in randomized block design with gross plot size 4.2 x 4.4 m<sup>2</sup> and net plot size 3.0 x 4.0 m<sup>2</sup> with twelve treatments replicated thrice with the object to study the effect of some insecticides against pigeonpea pod fly, <italic>Melanagromyza obtuse</italic>. In evaluation studyten treatments were tested against pod fly, <italic>Melanagromyza obtuse</italic>. on pigeonpea. The result revealed that treatment Deltamethrin 1 EC + Triazophos 35 EC emerged as the most effective treatment against <italic>M. obtusa</italic> in minimizing the damage to green and drypods as well as grains. Thiaclopride 21.7 SC and Profenophos 50 EC were found significantly effective in minimizing the cumulative mean per cent infestation of pod flyof pigeonpea. These findings indicate that the pigeonpea crop required two sprays of newer insecticides from pod initiation stage at 15 days interval for the management of pigeonpea pod fly, <italic>Melanagromyza obtusa.</italic>

scholarly journals Variation Among Full-Sib Progenies of Red Maple in Growth, Autumn Leaf Color, and Leafhopper Injury

1993 ◽  
Vol 11 (2) ◽  
pp. 72-75 ◽  
Author(s):  
A.M. Townsend ◽  
M.S. McIntosh
Keyword(s):  
Significant Interaction ◽  
Block Design ◽  
Acer Rubrum ◽  
Tree Height ◽  
Red Maple ◽  
Color Intensity ◽  
Leaf Color ◽  
Randomized Block Design ◽  
Autumn Leaf

Abstract Controlled pollinations made between selected parents of red maple (Acer rubrum L.), and seedling progenies were planted in a randomized block design along with trees of the cultivars ‘October Glory,’ ‘Autumn Flame,’ and ‘Red Sunset’. Tree height, autumn color, and leafhopper (Empoasca fabae (Harris)) injury were evaluated over an eight-year period. Differences among progenies and cultivars in leafhopper injury and in the time and quality of peak autumn leaf color were statistically significant for all years. These traits were significantly influenced by the female and/or male parent used to create the progeny. The timing of peak color was also influenced by a significant interaction between male and female parents. Growth rate and color intensity of the same progenies were generally consistent across years, whereas correlation for leafhopper damage was weak between years. Clonal selections from the best progenies have been made and are being evaluated for possible release to the nursery industry.

scholarly journals ADAPTASI KLON-KLON RAMI DI ANTARA KELAPA

2020 ◽  
Vol 11 (4) ◽  
pp. 140
Author(s):  
UNTUNG SETYO BUDI ◽  
RR. SRI HARTATI ◽  
RULLY D. PUR WATT PUR WATTI
Keyword(s):  
Block Design ◽  
Research Result ◽  
Dry Weight ◽  
Organic Manure ◽  
Plant Spacing ◽  
West Java ◽  
Land Preparation ◽  
Plot Size ◽  
Boehmeria Nivea ◽  
Randomized Block Design

<p>ABSTRAK<br />Penelitian untuk mendapatkan klon-klon unggul rami untuk lahan di<br />antara pohon kelapa, telah dilaksanakan pada bulan April 1999 - Maret<br />2000, di lahan kebun plasma PIR-Kelapa 5 (NES 5) Desa Mekarsari,<br />Kecamatan Cimerak, Kabupaten Ciamis, Jawa Barat. Tanaman kelapa<br />hibrida ditanam pada tahun 1993/1994 dengan jarak tanam 9 m x 9 m, dan<br />sudah berproduksi. Perlakuan terdiri dari 12 klon rami yang disusun dalam<br />rancangan acak kelompok dan diulang 3 kali. Klon-klon tersebut adalah<br />Pujon 10, Pujon 13, Bandung A, Pujon 9, Pujon 902, Indochina, Kotaraja,<br />Japan I, Hakuki, Padang 3, Jawa Timur 3-0 dan Pujon 601. Bibit/rhizoma<br />ditanam dengan jarak tanam 50 cm x 80 cm satu stek per lubang, pada plot<br />berukuran 4 m x 9 m. Kapur dan pupuk kandang diberikan bersamaan<br />dengan pengolahan tanah dengan dosis masing-masing 2 ton dan 20 ton<br />per hektar. Sedangkan pupuk buatan diberikan pada 10 hari setelah tanam<br />dengan dosis 200 kg urea + 150 kg SP-36 + 100 kg KC1 per hektar.<br />Pemupukan selanjutnya dilakukan 7-10 hari setiap sehabis panen/pangkas<br />dengan dosis yang sama. Panen pertama dilakukan pada 70 HST,<br />sedangkan panen berikutnya setiap dua bulan sekali. Pengamatan pada<br />sebelum dan sesudah panen dilakukan terhadap tinggi tanaman, diameter<br />batang, jumlah anakan per rumpun, bobot brangkasan segar, bobot batang<br />segar dan bobot kering china grass. Hasil penelitian menunjukkan bahwa<br />klon Pujon 10, Pujon 13, Padang 3, Bandung A dan Indochina merupakan<br />klon-klon yang memiliki daya adaptasi tinggi di lahan antara pohon kelapa<br />di Ciamis sampai dengan panen ke empat.<br />Kata kunci: Rami, Boehmeria nivea L. Gaud, adaptasi, kebun kelapa,<br />tanaman sela, Jawa Barat</p><p><br />ABSTRACT<br />Adaptation of ramie clones in coconut plantation<br />An experiment to find out the promising clones of ramie in coconut<br />plantation in Mekarsari, Cimerak,West Java from April 1999 to March<br />2000. Coconut trees in the experiment location were planted in 1993/1994<br />with plant spacing 9 x 9 m and have already producted. Twelve rami<br />clones viz. Pujon 10, Pujon 13, Bandung A, Pujon 9, Pujon 902,<br />Indochina, Kotaraja, Japan I, Hakuki, Padang 3, Jawa Timur 3-0 and Pujon<br />601, was evaluated using Randomized Block Design (RBD) with three<br />replications. Rami rhizome was planted in 4 m x 9 m plot size with 50 cm<br />x 80 cm plant spacing and one rhizome per hole. Lime (2 ton/ha) and<br />organic manure (20 ton/ha) were applied during land preparation. Organic<br />fertilizers were applied 10 days after planting 200 kg urea •+• 150 kg SP-36<br />+ 100 kg KC1 per hectare. The next fertilizing was conducted 7 - 10 days<br />every after harvest with the same doses. The first harvesting time was 70<br />days after planting and the folowing harvests were conducted every two<br />months. Parameters observed were plant height, stem diameter, plant<br />number per scrub, fresh wight biomass, stem fresh wight and chinagrass<br />dry weight. Research result indicated that ramie clones viz. Pujon 10,<br />Pujon 13, Padang 3, Bandung A, and Indochina, were more adaptable in<br />coconut plantation in Ciamis, West Java, up to the fourth harvest.<br />Ramie, Boehmeria nivea L. Gaud, adaptation, cocon<br />plantation, intercrop, West Java</p>

scholarly journals FLOWERING SYNDROME – HYBRID PERFORMANCE RELATIONSHIP IN MAIZE 1- Field traits and growth rates

2016 ◽  
Vol 47 (4) ◽  
Author(s):  
Al- Khazaali & et al.
Keyword(s):  
Grain Yield ◽  
Dry Matter ◽  
Growth Traits ◽  
Block Design ◽  
Inbred Lines ◽  
High Yield ◽  
Late Flowering ◽  
Randomized Block Design ◽  
Four Seasons ◽  
Selection For

In order to identify the role of selection for early and late silking on the inbred lines from Maize (Zea Mays L.) regarding the grain yield of the consequent hybrids. Filed experiment for four seasons (spring and full 2014 and 2015) was conducted in the experimental field of Field Crop Dept., Coll. of Agric., Univ. of Baghdad. Four inbred lines (Zm19, Zm32, Zm51 and Zm61) and two testers (Zm21 late and Zm60 early silking) were used. In the first two seasons, the seeds of the four inbred lines were planted, first 10 plants that flowered early and 10 plants that flowered late were selected and the seeds of the selected plants were multiplied. The seeds of the early and late selected inbred lines were planted in the third season and crossed with testers. Crosses from the early and late flowering were produced and their seeds were cultivated in the last season. Comparison in some field and growth traits were conducted among the crosses. The experiments laid out in completely randomized block design (RCBD) at three replicates. Selection for early and late flowering parents has induced significant differences in days to flowering for all crosses and ranged between 62 days for early parents and 66 days for late parents. Also, significant differences were shown in several traits, the most prominent were crop’s and seed’s growth rate (CGR and SGR ), that correlated with seed filling duration (SFD), which contributed to increase the deposition of the dry matter into the grain for a longer period, which gave a high grain yield (GY). CGR of outstanding crosses ranged from 3.18 to 6.21 g.m-2.day, SGR ranged between 2.3 to 7.3 g. m-2.day, and the SFD between 35-38 days. In parallel, the testers (Zm21 late and Zm60 early silking) have significantly differed in their effect on the traits of some derived crosses, where the results showed significant superiority of the crosses Zm32Zm60 resulted from crossing the tester Zm60 with early silking parents selected from inbred line Zm32 on the crosses Zm32Zm21 resulted from crossing the tester Zm21 with the same parents of Zm32 in the traits of Total Dry Matter (TDM) (1.85 kg.m-2), CGR (18.28 g.m-2.day), Harvest Index (HI) (0.56), and SGR (3.3 g.m-2.day). It can be conclude  that selection for early and late silking inbred lines, as well as the effect of the early and late silking tester have a great importance in deriving hybrids of a high yield and distinct in several traits, which are all significantly contributing in increasing the GY.

scholarly journals Characterization of Local Rice, Pegagan (Siputih) on Lowland Swamp Agroecosystems in South Sumatra

2018 ◽  
Vol 24 (2) ◽  
pp. 77
Author(s):  
Kiagus Abdul Kodir ◽  
Yuana Juwita ◽  
Priatna Sasmita
Keyword(s):  
Quantitative Data ◽  
Qualitative Data ◽  
Block Design ◽  
Morphological Characters ◽  
National Commission ◽  
Agronomic Characters ◽  
Plot Size ◽  
Randomized Block Design ◽  
Number Of Seeds

<p>The Pegagan rice (Siputih) is one of local rice lowland specific in South Sumatra. This rice is rarely grown by farmers. Identification was carried out at lowland Agroecosystem in Ogan Komering Ilir Distric of South Sumatra Province. The purpose of this study was to characterize on morphological and agronomic characters. The study was conducted by planting and observing the local rice Pegagan (Siputih) which collected from five different districts (Tanjung Raja, Indralaya, Jejawi, SP Padang, and Kayuagung). All materials were tested using Randomized Block Design Complete with four replications. Each plot size 5 m × 5 m, number of seeds/holes 2–3 rod, a spacing of 25 cm × 25 cm. The characterization was done based on Rice Characterization and Evaluation Guide of the National Commission for Rice Germplasm. Morphological characters were presented in qualitative data and analyzed by Mode (Mo) analysis, while the agronomic characters were showed on quantitative data and analyzed by analysis of variance (ANOVA). The observation and analysis were indicated that the five local rice Pegagan (Siputih) which collected from 5 different district were showed no diversity, both on morphology and agronomic characters. Paralele on characterization planting, roughing was done and detected 0.15% mixed with others varieties and 1.85% plant have the deviation characters.</p>

Sign in / Sign up

Export Citation Format

Share Document