scholarly journals Korelasi dan Analisis Lintas Beberapa Karakter Tanaman Cabai (Capsicum annuum L.) pada Kondisi Normal dan Tercekam Kekeringan (Correlations and Path Analysis of Some Characters in Chili Pepper (Capsicum annuum L.) Under Normal and Drought Stress)

2020 ◽  
Vol 29 (2) ◽  
pp. 147
Author(s):  
NFN - Rosmaina ◽  
NFN Sobir ◽  
NFN Parjanto ◽  
Ahmad Yunus
Keyword(s):  
Drought Stress ◽  
Capsicum Annuum ◽  
Selection Criteria ◽  
Fruit Set ◽  
Field Capacity ◽  
Fruit Weight ◽  
Extreme Stress ◽  
Capsicum Annuum L ◽  
Drought Tolerant ◽  
Water Field

<p>Cekaman air merupakan salah satu faktor pembatas pertumbuhan dan produksi tanaman termasuk cabai (Capsicum annuum L.). Produktivitas tanaman merupakan karakter yang kompleks sehingga hubungan antarkarakter perlu diketahui untuk mendapatkan kriteria seleksi yang tepat untuk perbaikan tanaman. Penelitian ini bertujuan mengetahui kriteria seleksi terhadap produksi tanaman cabai toleran kekeringan pada fase pembungaan. Penelitian disusun menggunakan Rancangan Acak Lengkap dengan tiga taraf cekaman air, yaitu 100% kapasitas lapang (kontrol), 50% kapasitas lapang (medium stress), dan 25% kapasitas lapang (extreme stress). Hasil analisis korelasi menunjukkan bahwa berbagai karakter yang diamati memperlihatkan perbedaan asosiasi dengan level cekaman kekeringan. Karakter panjang akar tidak dapat digunakan sebagai kriteria seleksi tanaman cabai yang toleran terhadap kekeringan karena panjang akar tidak berkorelasi secara signifikan dengan bobot buah per tanaman pada 50% dan 25% kapasitas lapang. Berdasarkan korelasi dan analisis lintas pada kondisi normal (100% kapasitas lapang) dan kondisi tercekam (50% kapasitas lapang), karakter jumlah buah dan persentase fruit set berkorelasi positif dan berpengaruh langsung terhadap bobot buah per tanaman sehingga dapat digunakan sebagai kriteria seleksi untuk perbaikan tanaman cabai yang toleran kekeringan.</p><p><strong>Keywords</strong></p><p>Cekaman air; Cekaman kekeringan; Kriteria seleksi; Cabai; Capsicum annuum L</p><p><strong>Abstract</strong></p><p>Water stress is one of limiting factors for plant growth and production, including chili (Capsicum annuum L.). Plant productivity is a complex character so the relationship between characters needs to be known to get the right selection criteria for crop improvement. This study aimed to determine the selection criteria for the production of drought-tolerant chili pepper at the flowering phase. The research arranged under completely randomized design with three levels of water stress, namely 100% water field capacity (control), 50% water field capacity (medium stress) and 25% water field capacity (extreme stress). The results of the correlation analysis showed that the various characters observed exhibited differences associations with drought stress levels. Root length cannot be used for selection criterium of drought tolerant on chili because it was no positive significantly correlated to fruit weight per plant at 50% and 25% water field capacity. Based on correlation and path analysis in normal and drought conditions, the number of fruits and percentage of fruit set can be used as selection criteria for genetic improvement of drought-tolerant on chili plants because these characters were significantly positively correlated and had a direct effect on fruit weight of the plant.</p>

scholarly journals Rendimiento y eficiencia en el uso del agua de un genotipo de chile serrano (Capsicum annuum L.) Producido bajo fertilización orgánica e inorgánica en casa sombra

2021 ◽  
pp. 47329-47332
Keyword(s):  
Capsicum Annuum ◽  
Fruit Weight ◽  
Organic Fertilization ◽  
The Third ◽  
Capsicum Annuum L ◽  
Weight Yield ◽  
High Yields ◽  
The University ◽  
Gradual Release ◽  
Research Show

The objective of this research was to evaluate the effect of organic fertilization, compared to inorganic and a combination of both in the cultivation of serrano pepper (Capsicum annuum L.) under shade net at the University of Sonora. The variables that were evaluated were: fruit weight, yield, length and diameter of fruit, as well as efficiency of water use. For the weight of the fruit per plant, no significant differences were observed between treatments in the first two cuts, however, for the third cut if there were significant differences, the best treatments were inorganic fertilization and the mixture of inorganic plus algae extracts with 280.29 and 212.21 g respectively. For the fourth and fifth cut the trend was in the same way up to the final average resulting in the best treatment inorganic fertilization with 233.94 g per plant followed by the mixture of inorganic plus seaweed extract with 166.75 g per plant. Regarding the yield, it can be observed that from the third cut the treatments that contained inorganic resulted with the highest yield, resulting in the total average inorganic fertilization with 38665.77 kg ha-1 and inorganic fertilization plus algae extract with 27514.08 kg ha-1. The results obtained from this research show that organic fertilization does not provide high yields compared to inorganic because of the gradual release of nutrients to the plant.

scholarly journals Differential Activity of Antioxidant Enzymes and Physiological Changes in Wheat (Triticum aestivum L.) Under Drought Stress

2019 ◽  
Vol 11 (2) ◽  
pp. 266-276
Author(s):  
Kamal MIRI-HESAR ◽  
Ali DADKHODAIE ◽  
Saideh DOROSTKAR ◽  
Bahram HEIDARI
Keyword(s):  
Water Stress ◽  
Drought Stress ◽  
Field Capacity ◽  
Triticum Aestivum L ◽  
Plant Production ◽  
Breeding Programs ◽  
Drought Tolerant ◽  
Severe Water Stress ◽  
Significant Difference ◽  
Relative Water

Drought stress is one of the most significant environmental factors restricting plant production all over the world. In arid and semi-arid regions where drought often causes serious problems, wheat is usually grown as a major crop and faces water stress. In order to study drought tolerance of wheat, an experiment with 34 genotypes including 11 local and commercial cultivars, 17 landraces, and six genotypes from International Maize and Wheat Improvement Center (CIMMYT) was conducted at the experimental station, School of Agriculture, Shiraz University, Iran in 2010-2011 growing season. Three different irrigation regimes (100%, 75% and 50% Field Capacity) were applied and physiological and biochemical traits were measured for which a significant difference was observed in genotypes. Under severe water stress, proline content and enzymes’ activities increased while the relative water content (RWC) and chlorophyll index decreased significantly in all genotypes. Of these indices, superoxide dismutase (SOD) and RWC were able to distinguish tolerant genotypes from sensitives. Moreover, yield index (YI) was useful in detecting tolerant genotypes. The drought susceptibility index (DSI) varied from 0.40 to 1.71 in genotypes. These results indicated that drought-tolerant genotypes could be selected based on high YI, RWC and SOD and low DSI. On the whole, the genotypes 31 (30ESWYT200), 29 (30ESWYT173) and 25 (Akbari) were identified to be tolerant and could be further used in downstream breeding programs for the improvement of wheat tolerance under water limited conditions.

scholarly journals Nitrogen Source Affects the Composition of Metabolites in Pepper (Capsicum annuum L.) and Regulates the Synthesis of Capsaicinoids through the GOGAT–GS Pathway

Foods ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 150 ◽  
Author(s):  
Jing Zhang ◽  
Jian Lv ◽  
Jianming Xie ◽  
Yantai Gan ◽  
Jeffrey A. Coulter ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Capsicum Annuum ◽  
Multivariate Data Analysis ◽  
Ammonium Assimilation ◽  
Fruit Weight ◽  
Liquid Chromatography Mass Spectrometry ◽  
Capsicum Annuum L ◽  
Ammonium N ◽  
Pepper Fruit ◽  
Capsaicinoid Biosynthesis

Phytochemical analyses of pepper fruit metabolites have been reported; however, much less is known about the influence of different forms of nitrogen (N), which is critical for plant growth and fruit quality formation. The “Longjiao No. 5” variety (Capsicum annuum L.) grown in Northwestern China was profiled using liquid chromatography–mass spectrometry (LC–MS) coupled with multivariate data analysis to explore the composition of different metabolites in pericarp and placenta, and to investigate the effect of three ammonium (NH4+) to-nitrate (NO3−) ratios (0:100, 25:75, and 50:50). A total of 215 metabolites were obtained by qualitative analysis, where 31 metabolites were the major differential metabolite components of pepper fruits between placenta and pericarp, and 25 among N treatments. The addition of ammonium up-regulated carbohydrates, such as α-lactose and sucrose, as well as phenylalanine lyase (PAL) of placenta tissue. The supply of 25% NH4+–N and 75% NO3−–N exhibited a relatively higher levels of ascorbic acid in pericarp and amino acids, capsaicin, and dihydrocapsaicin in placenta, and led to higher fruit weight among the ammonium-to-nitrate ratios. The expression and activities of glutamic acid synthetase (GOGAT) and glutamine synthetase (GS) that are involved in ammonium assimilation were affected by adjusting the ammonium–N proportion, and they were significantly positively correlated with capsaicin, dihydrocapsaicin contents, capsaicinoid synthetase (CS), as well as the relative expression levels of genes related to capsaicinoid biosynthesis, such as acyltransferase 3 (AT3) and acyl-ACP thioesterase (FatA).

scholarly journals Evaluasi Karakter Kualitatif dan Kuantitatif Cabai Hias (Capsicum annuum L.) IPB

2019 ◽  
Vol 1 (1) ◽  
pp. 54
Author(s):  
Kana Dau Sukmawati ◽  
Muhamad Syukur ◽  
Arya Widura Ritonga
Keyword(s):  
Capsicum Annuum ◽  
Leaf Shape ◽  
Ornamental Plants ◽  
Fruit Shape ◽  
Fruit Weight ◽  
Fruit Color ◽  
Chili Pepper ◽  
Stem Length ◽  
Fruit Length ◽  
Capsicum Annuum L

ABSTRACT Chili pepper (Capsicum annuum L.) is a commodity that has a high economic value and has been known and cultivated by people throughout the world. Ornamental chili pepper has aesthetic value as ornamental plants such as the round or long round fruits and the diversity of fruit colors. This study was conducted to evaluate the qualitative and quantitative characters of 11 genotypes of ornamental chili pepper to obtain superior ornamental chili pepper varieties. The analyzed variables were the plant height, stem length, stem diameter, stem color, shortened internode, plant habitus, leaf shape, leaf color, leaf length, leaf width, days to flowering, corolla color, anther color, flower position, harvest date, fruit weight, fruit length, fruit pedicel length, fruit diameter, fruit shape, fruit shape at blossom end, fruit color, and anthocyanin coloration. This study was conducted in green house of the Cikabayan Experimental Garden and the Laboratory of Genetics and Plant Breeding, Department of Agronomy and Horticulture, Faculty of Agriculture, Bogor Agricultural University, from January to June 2018. The experimental design was randomized complete block design with one factor (genotipe) and four replicates. All genotypes evaluated had diverse quantitative and qualitative characters especially in the character of fruit weight, fruit length, and fruit color. The most preferred genotypes were Ayesha 1, Violeta, and Nazla. Ayesha 1 was favored because of its rounded fruit, interesting and quite varied fruit colors. Violeta and Nazla were prefered because of the purple fruits. Nazla was prefered as pot ornamental plants for its short plant and the convenience to take care. Keywords: Capsicum annuum L, genotipe, ornamental chili pepper  Cabai (Capsicum annuum L.) merupakan komoditas yang memiliki nilai ekonomi tinggi dan merupakan tanaman yang sudah dikenal dan dibudidayakan oleh masyarakat di seluruh dunia. Karakter cabai hias memiliki nilai estetika sebagai tanaman hias seperti bentuk buah yang umumnya bulat atau bulat panjang dan warna buah yang sangat bervariasi. Penelitian ini dilakukan untuk mengevaluasi karakter kualitatif dan kuantitatif 11 genotipe cabai hias untuk menghasilkan varietas cabai hias yang unggul. Karakter yang diamati terdiri atas tinggi tanaman, tinggi dikotomus, diameter batang, warna batang, pemendekan ruas, habitus tanaman, bentuk daun, warna daun, panjang daun, lebar daun, waktu munculnya bunga, warna mahkota bunga, warna anther, kedudukan bunga, umur panen buah, bobot buah, panjang buah, panjang tangkai buah, diameter buah, bentuk buah, bentuk pangkal buah, perubahan warna buah, dan pewarnaan antosianin. Penelitian dilakukan di rumah kaca Kebun Percobaan Cikabayan dan Laboratorium Genetika dan Pemuliaan Tanaman, Departemen Agronomi dan Hortikultura, Fakultas Pertanian Institut Pertanian Bogor. Penelitian dilaksanakan pada bulan Januari sampai Juni 2018. Rancangan penelitian yang digunakan adalah Rancangan Kelompok Lengkap Teracak (RKLT) satu faktor yaitu genotipe dengan 4 kali ulangan. Semua genotipe yang dievalusi memiliki karakter kuantitatif dan kualitatif yang beragam baik antar genotipe uji maupun dengan varietas pembanding, terutama pada karakter bobot buah, panjang buah, dan warna buah. Genotipe yang paling disukai adalah Ayesha 1, Violeta, dan Nazla. Ayesha 1 disukai karena bentuk buahnya yang membulat dan warna buahnya yang menarik dan beragam. Violeta dan Nazla disukai karena buahnya berwarna ungu. Nazla lebih disukai untuk tanaman hias pot karena perawakannya yang pendek dan memudahkan perawatan. Kata kunci: Capsicum annuum L., cabai hias, genotipe

scholarly journals Response of Selected Garden Roses to Drought Stress

HortScience ◽  
2012 ◽  
Vol 47 (8) ◽  
pp. 1050-1055 ◽  
Author(s):  
Xiaoya Cai ◽  
Terri Starman ◽  
Genhua Niu ◽  
Charles Hall ◽  
Leonardo Lombardini
Keyword(s):  
Drought Stress ◽  
Root Growth ◽  
Field Capacity ◽  
Leaf Water ◽  
The Other ◽  
Flower Number ◽  
Drought Treatment ◽  
Greenhouse Study ◽  
Drought Tolerant ◽  
Substrate Moisture

A greenhouse study was conducted to evaluate the response of four garden roses (Rosa ×hybrid L.), ‘RADrazz’, ‘Belinda’s Dream’, ‘Old Blush’, and ‘Marie Pavie’, to drought stress. Plants grown in containers were subjected to two watering treatments, well-irrigated [water as needed: ≈35% substrate moisture content (SMC) at re-watering] and cyclic drought stress (withholding irrigation until plants exhibit incipient wilting: ≈10% SMC, then re-watering to field capacity for subsequent dry down). Shoot growth and flower number were reduced in the drought treatment compared with the well-irrigated plants in all cultivars with least reduction in ‘RADrazz’. Drought stress reduced root growth in ‘Belinda’s Dream’ and ‘Marie Pavie’, whereas there was no difference in root growth in ‘RADrazz’ and ‘Old Blush’. Decreased SMC induced reduction in net photosynthetic rate (Pn), stomatal conductance (gS), transpiration rate (E), and midday leaf water potential (ψ). Leaf water use efficiency (WUE) increased as SMC decreased in all cultivars. However, the relationship between these physiological parameters and SMC differed among the cultivars. At SMC between 10% and 20%, ‘RADrazz’ had higher Pn, gS, E, and WUE compared with the other three cultivars. Therefore, ‘RADrazz’ was the most drought-tolerant during container production among the cultivars investigated. With lower gas exchange rates and greater reduction in flower number at low SMC, ‘Marie Pavie’ was less drought-tolerant compared with the other three cultivars.

scholarly journals Pedological and agrochemical investigations on media using in vegetable forcing

2004 ◽  
Vol 10 (1) ◽  
Author(s):  
Sz. Jakusné Sári
Keyword(s):  
Capsicum Annuum ◽  
Organic Materials ◽  
Fruit Weight ◽  
Pine Bark ◽  
Growth And Yield ◽  
Green Pepper ◽  
Natural Materials ◽  
Capsicum Annuum L ◽  
Inorganic And Organic

In spite of the several good properties of peat, recently, some experiments were carried out with the aim of finding natural materials which can substitute for peat. According to the results, several inorganic and organic materials were proved to be suitable for this purpose. This study examines the effect of different organic materials (example: pine bark, composts, peats) on the growth and yield of green pepper (Capsicum annuum L., variety Danubia). We found that the most developed plants were grown in peat-mixtures and pine bark. The average fruit weight was the highest at those plants which were planted also in these media. The plants which were grown in composts fell short of our expectations in development and in yield, too.

A STUDY OF THE ASSOCIATION BETWEEN EARLINESS, FRUIT SIZE AND EARLY YIELD IN DETERMINATE TOMATOES

1962 ◽  
Vol 42 (4) ◽  
pp. 635-641
Author(s):  
C. C. Beknier ◽  
A. C. Ferguson
Keyword(s):  
Selection Criteria ◽  
Fruit Set ◽  
Fruit Size ◽  
Fruit Weight ◽  
Ripe Fruit ◽  
Weight Data ◽  
Combining Information

The association between fifteen developmental characters and earliness, fruit size and early yield in six determinate tomato varieties was studied in 1958 to evaluate these characters as selection criteria. The number of ripe fruit produced by September 1 was used as the measure of earliness and the weight of ripe fruit as the measure of early yield.Number of fruit set on July 1 and on July 15 were associated with earliness and early yield in all varieties. In four varieties, days to three ripe fruit was negatively correlated with earliness; the association being strongest in the later varieties. Little association existed between earliness and days to first flower or days to first ripe fruit.Early yield was strongly associated with weight of first four ripe fruit in five varieties and with weight of ripe fruit produced on the first cluster, in three varieties. Fruit weight data taken at earlier stages showed little if any association with early yield.This study indicates that early large-fruited, high-yielding tomato lines can be selected through combining information on early fruit set and size of the first four ripe fruit.

esponse of Sweet pepper (Capsicum annuum L.) in saline region of Bangladesh

2020 ◽  
Vol 4 (2) ◽  
pp. 150-156
Author(s):  
M. R. I. Suhel ◽  
N. J. Methela ◽  
R. A. Ruhi ◽  
B. Hossain
Keyword(s):  
Capsicum Annuum ◽  
Growth And Development ◽  
Agricultural Research ◽  
Saline Soil ◽  
Crop Productivity ◽  
Sweet Pepper ◽  
Fruit Weight ◽  
Research Field ◽  
Capsicum Annuum L ◽  
Red Army

Salinity is one of the major issues that lead to a reduction in crop productivity. This study aimed to investigate the response of sweet pepper (Capsicum annuum L.) to saline soil. The research was conducted in Agricultural Research Field at Noakhali Science and Technology University during 2018-19 with two sweet pepper varieties as treatment named Red Army (V1) and California Wonder (V2). The results indicated that there were significant variations between the two varieties in different parameters of growth as well as yield performance. The result showed that between the treatments V2 (California Wonder) gave the higher yield ie., 10.65 ton/ha while V1(Red Army) produced 9.61 ton/ha. Moreover, the taller plants and longer fruit were obtained from the V2 which were 32.43 cm and 8.23 cm respectively. Even among the other parameters, V2 gave higher growth and development than V1. Furthermore, average single fruit weight/plant was recorded 76.33 g in California Wonder (V2) whereas Red Army (V1) provided 74.16 g. The finding of the experiment indicated that the overall better performance could be obtained from V2 California Wonder variety of sweet pepper. This study evaluated the varietal performance of two varieties and it can be said from the experiment that the California Wonder is the best variety for cultivation in saline region in Bangladesh.

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