scholarly journals Adaptability and stability parameters of total seed yield and protein content in cowpea (Vigna unguiculata) genotypes subjected to semi-arid conditions

2016 ◽  
Vol 10 (8) ◽  
pp. 1164-1169 ◽  
Author(s):  
Danillo Olegario Matos da Silva ◽  
◽  
Carlos Antonio Fernandes Santos ◽  
Leonardo Silva Boiteux ◽  
◽  
...  
Keyword(s):  
Protein Content ◽  
Seed Yield ◽  
Vigna Unguiculata ◽  
Stability Parameters ◽  
Arid Conditions ◽  
Total Seed ◽  
Semi Arid

scholarly journals Impact of Plant Density and Mepiquat Chloride on Growth, Yield, and Silymarin Content of Silybum marianum Grown under Mediterranean Semi-Arid Conditions

Agronomy ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 669 ◽  
Author(s):  
Arampatzis ◽  
Karkanis ◽  
Tsiropoulos
Keyword(s):  
Seed Yield ◽  
Plant Density ◽  
Plant Biomass ◽  
Crop Growth ◽  
Milk Thistle ◽  
Silybum Marianum ◽  
Mepiquat Chloride ◽  
Arid Conditions ◽  
The Impact ◽  
Semi Arid

Milk thistle (Silybum marianum (L.) Gaertn.) is a promising new crop in the Mediterranean region. Its seeds contain silymarin, a complex of flavonolignans, which is widely used in the pharmaceutical industry, mainly to produce dietary supplements. To meet the increasing demand for milk thistle, the production and productivity of milk thistle should also be optimized by employing adequate cultivation practices. In the present study, a two-year field experiment was conducted to assess the effects of plant density and a plant growth regulator on milk thistle crop growth, seed yield, and silymarin accumulation under Mediterranean semi-arid conditions. Our results showed that plant density had a significant impact on milk thistle crop growth and seed yield. The main crop characteristics, such as height, aboveground biomass, and seed yield were greatest when plant density was the highest. Increased plant density significantly reduced the silymarin content only in 2018. In contrast, mepiquat chloride (MC) treatment did not affect the following traits: plant biomass, relative chlorophyll content, silymarin content, and production. Nevertheless, mepiquat chloride reduced the plant height by 7.9%–14.8%, depending on the application rates and growth conditions. Moreover, the impact of climatic conditions on milk thistle production and quality was significant, since the lowest values of silymarin content and seed yield were recorded in the year with drought conditions during the period from March to May.

Crop Growth, Development and Yield in Semi-arid Conditions in Botswana. II. The Effects of Intercropping Sorghum Bicolor with Vigna Unguiculata

1986 ◽  
Vol 22 (2) ◽  
pp. 169-177 ◽  
Author(s):  
D. J. Rees
Keyword(s):  
Plant Growth ◽  
Grain Yield ◽  
Vigna Unguiculata ◽  
Dry Weight ◽  
Climatic Conditions ◽  
Low Density ◽  
Arid Conditions ◽  
Plant Densities ◽  
Growth Development ◽  
Semi Arid

SUMMARYPlant growth, development and yield were monitored in sorghum/cowpea intercropping trials in Botswana during the drought seasons of 1982/3 and 1983/4. The cowpea proved to be more competitive than sorghum in these arid conditions, resulting in substantial increases in sorghum mortality and developmental delay, and substantial decreases in sorghum leaf area indices, dry weight production and grain yield. Intercropping in standard rows at medium plant densities resulted in Land Equivalent Ratios considerably less than 1.0, in contrast to earlier trials in Botswana in higher rainfall years which demonstrated intercropping advantages. Low density, wide row intercropping resulted in some small intercropping advantages, suggesting that this treatment may have potential in Botswana's variable climatic conditions.

scholarly journals Development of High Yielding Cowpea [Vigna unguiculata (L.) Walp.] Lines with Improved Quality Seeds through Mutation and Pedigree Selection Methods

Horticulturae ◽  
2021 ◽  
Vol 7 (9) ◽  
pp. 271
Author(s):  
Elmahdy Metwally ◽  
Mohamed Sharshar ◽  
Ali Masoud ◽  
Ali Masry ◽  
Atef Fiad ◽  
...  
Keyword(s):  
Protein Content ◽  
Seed Yield ◽  
Vigna Unguiculata ◽  
Seed Quality ◽  
Mutation Breeding ◽  
Addition Line ◽  
Selection Methods ◽  
New Variety ◽  
Early Maturity ◽  
Pedigree Selection

Cowpea [Vigna unguiculata (L.) Walp.] is a major legume crop and an important source of protein in Africa. The Kafr El-Sheikh University has a long history of cowpea breeding and improvement in Egypt. Two superior lines with high seed yield and quality were selected through mutation breeding and released to farmers as new varieties under the names Kafr El Sheikh-1 and Kaha-1. Crosses were made between these two varieties to further improve cowpea to meet farmers’ demand. Using the pedigree selection method, 13 new superior F10 lines were selected and evaluated over 2 years for seed yield and related traits, earliness, and protein content under low (16 plants/m2) and high (24 plants/m2) plant densities. The results showed that plants grown in narrower space produced significantly higher seed yield per unit area than the plants grown in wider space. All developed lines produced significantly higher seed yield than the two parental lines in the 2018 trial and Kaha-1 in the 2019 trial. Line number 6 proved to be the best genotype for earliness (73.5–73.9 days after sowing), seed yield (573–647 g/m2), and crude protein content (22.7–24.3%) in both trials. In addition, line 4 with bushy determinate growth habit and high seed quality was recently released as a new variety (Sakha-1). Several other cowpea lines have clear potential for release as new high-yielding varieties with early maturity and high seed quality for farmers in Egypt. Seeds of selected lines are available from Kafrelsheikh University. This shows that mutation breeding and pedigree selection methods are among the most promising breeding methods for cowpea improvement.

scholarly journals Characterization of Bioactive Compounds, Mineral Content and Antioxidant Capacity in Bean Varieties Grown in Semi-Arid Conditions in Zacatecas, Mexico

Foods ◽  
2018 ◽  
Vol 7 (12) ◽  
pp. 199 ◽  
Author(s):  
Ibeth Herrera-Hernández ◽  
Karen Armendáriz-Fernández ◽  
Ezequiel Muñoz-Márquez ◽  
Juan Sida-Arreola ◽  
Esteban Sánchez
Keyword(s):  
Antioxidant Capacity ◽  
Protein Content ◽  
Bioactive Compounds ◽  
Mineral Content ◽  
Reducing Power ◽  
Black Beans ◽  
Arid Conditions ◽  
Navy Beans ◽  
Semi Arid

This research describes the characterization of bioactive compounds, mineral content, and antioxidant capacity in bean varieties grown in semi-arid conditions in Zacatecas, Mexico. This will provide better progress perspectives for agriculture nationwide and will ensure that bean crops are in the condition to satisfy the population’s nutritional needs by placing it not only as one of the foodstuffs comprising Mexico’s basic diet but also as one of the legumes having greater biofortification potential in Mexico. Eleven bean varieties were collected (flor de mayo, bayo, frijola, patola, navy beans, flor de junio, reata beans, Japanese beans, black beans, canary beans, and pinto Saltillo). The evaluation done included the physical and physico-chemical characteristics, as well as the mineral content, bioactive compounds and antioxidant capacity of these bean varieties. Data gathered were subject to a variance and mean separation analysis. The most remarkable individual results were as follows: Canary beans had the highest iron content (105.29 mg/kg), while bayo beans had the highest zinc concentration (48.18 mg/kg) and reata beans had the highest level of protein (26.88%). The varieties showing the most remarkable results with regard to zinc, iron and protein content and antioxidant capacity were as follows: Flor de junio, flor de mayo, reata beans, navy beans and pinto Saltillo; however, the most remarkable variety in comprehensive terms was flor de junio, which showed a reducing power of 0.20%, an antioxidant capacity of 80.62% inhibition, a protein content of 0.17%, in addition to Ca (0.24%), Fe (90.97 mg/kg), Zn (27.23 mg/kg), fiber (3.22%), energy (353.50 kcal), phenols (94.82 mg gallic acid (GA)/g extract) and flavonoids (1.30 mg mg Cat/g−1 dw). Finally, we came to the conclusion that beans grown in Zacatecas, Mexico, offer a huge benefit to consumers as a result of the mineral, protein, fiber, bioactive compounds, and antioxidant capacity contributions such beans provide. Thus, these beans can be used in a biofortification program using micronutrients to improve their nutritional quality.

scholarly journals Differential physio-biochemical and yield responses of Camelina sativa L. under varying irrigation water regimes in semi-arid climatic conditions

PLoS ONE ◽  
2020 ◽  
Vol 15 (12) ◽  
pp. e0242441
Author(s):  
Zeeshan Ahmed ◽  
Junhe Liu ◽  
Ejaz Ahmad Waraich ◽  
Yan Yan ◽  
Zhiming Qi ◽  
...  
Keyword(s):  
Seed Yield ◽  
Camelina Sativa ◽  
Yield Potential ◽  
Growth Stages ◽  
Oilseed Crop ◽  
Biochemical Activity ◽  
Yield Attributes ◽  
Arid Conditions ◽  
Yield Responses ◽  
Semi Arid

Camelina sativa L. is an oilseed crop with wide nutritional and industrial applications. Because of favorable agronomic characteristics of C. sativa in a water-limiting environment interest in its production has increased worldwide. In this study the effect of different irrigation regimes (I0 = three irrigations, I1 = two irrigations, I2 = one irrigation and I3 = one irrigation) on physio-biochemical responses and seed yield attributes of two C. sativa genotypes was explored under semi-arid conditions. Results indicated that maximum physio-biochemical activity, seed yield and oil contents appeared in genotype 7126 with three irrigations (I0). In contrast water deficit stress created by withholding irrigation (I1, I2 and I3) at different growth stages significantly reduced the physio-biochemical activity as well as yield responses in both C. sativa genotypes. Nonetheless the highest reduction in physio-biochemical and yield attributes were observed in genotype 8046 when irrigation was skipped at vegetative and flowering stages of crop (I3). In genotypic comparison, C. sativa genotype 7126 performed better than 8046 under all I1, I2 and I3 irrigation treatments. Because 7126 exhibited better maintenance of tissue water content, leaf gas exchange traits and chlorophyll pigment production, resulting in better seed yield and oil production. Findings of this study suggest that to achieve maximum yield potential in camelina three irrigations are needed under semi-arid conditions, however application of two irrigations one at flowering and second at silique development stage can ensure an economic seed yield and oil contents. Furthermore, genotype 7126 should be adopted for cultivation under water limited arid and semi-arid regions due to its better adaptability.

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