Genetics of Resistance to Bacterial Blight and Rust and Other Quantitative Traits in Cowpea (Vigna Unguiculata (L.) Walp) PDF Download
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Author: SOWMYA S. K
Publisher:
ISBN:
Category :
Languages : en
Pages : 94
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Author: SOWMYA S. K
Publisher:
ISBN:
Category :
Languages : en
Pages : 94
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Book Description
Author: Hasan Khan
Publisher:
ISBN:
Category :
Languages : en
Pages : 166
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Author: C. S. Prakash
Publisher:
ISBN:
Category :
Languages : en
Pages : 77
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Book Description
Author: Wellington Muchero
Publisher:
ISBN:
Category : Cowpea
Languages : en
Pages : 398
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Book Description
Author: Mohammad Pessarakli
Publisher: CRC Press
ISBN: 1351104586
Category : Science
Languages : en
Pages : 1199
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Book Description
Since the publication of the third edition of the Handbook of Plant and Crop Stress, continuous discoveries in the fields of plant and crop environmental stresses and their effects on plants and crops have resulted in the compilation of a large volume of the latest discoveries. Following its predecessors, this fourth edition offers a unique and comprehensive collection of topics in the fields of plant and crop stress. This new edition contains more than 80% new material, and the remaining 20% has been updated and revised substantially. This volume presents 10 comprehensive sections that include information on soil salinity and sodicity problems; tolerance mechanisms and stressful conditions; plant/crop responses; plant/crop responses under pollution and heavy metal; plant/crop responses under biotic stress; genetic factors and plant/crop genomics under stress conditions; plant/crop breeding under stress conditions; empirical investigations; improving tolerance; and beneficial aspects of stressors. Features: Provides exhaustive coverage written by an international panel of experts in the field of agriculture, particularly in plant/crop stress areas Contains 40 new chapters and 10 extensively revised and expanded chapters Includes three new sections on plant breeding, stress exerted to weeds by plants, and beneficial aspects of stress on plants/crops Numerous case studies With contributions from 100 scientists and experts from 20 countries, this Handbook provides a comprehensive resource for research and for university courses, covering soil salinity/sodicity issues and plant/crop physiological responses under environmental stress conditions ranging from cellular aspects to whole plants. The content can be used to plan, implement, and evaluate strategies to mitigate plant/crop stress problems. This new edition includes numerous tables, figures, and illustrations to facilitate comprehension of the material as well as thousands of index words to further increase accessibility to the desired information.
Author: Gabriel Vusanimuzi Nkomo
Publisher:
ISBN:
Category : Azuki
Languages : en
Pages : 0
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Book Description
A survey was carried out to assess the farmers’ production constraints, traits and preferred cowpea varieties. A semi-structured questionnaire was used in a survey in Buhera District, Zimbabwe, in March and April of 2018. Women farmers dominated the survey as they were 52% of the surveyed population, while men occupied 48% of the total population. All participants concurred that cowpeas were used for domestic consumption. Eighty-three percent of the farmers cited shortage, unavailability, and cost of fertiliser, 16% of the farmers acknowledged that they do not have access to quality seed, and 1% cited labour as the major constraints in cowpea production. Farmers ranked heat (86%), drought (10%), and soil fertility (4%) as the most important abiotic factors. Ninety-one percent of the farmers’ ranked rust as the major disease, while 2% ranked storage rot, 1% ranked anthracnose, and 1% ranked downy mildew. Eighty-one percent of the farmers ranked aphids as the main pests, while 3% ranked thrips, 3% ranked legume borers, and 2% ranked pod borers. Fifty-two percent of the farmers preferred varieties that are resistant to diseases such as rust, whereas 48% were not concerned about diseases. For qualitative traits, 50% of the farmers had no specific colour preference, 32% preferred white colour, 14% brown colour, 3% red colour, and 1% tan colour. Ninety-four percent of interviewed farmers were not concerned about the pod shape, 3% preferred the kidney shape, 2% preferred the spherical shape and 1% preferred the globular shape. Ninety-nine percent of farmers agreed that they needed high yielding varieties per unit area and only 1% were unsure. For quantitative traits such as grain size, pod size, plant height, and head size, the preferences of farmers varied. Forty-four percent of the farmer respondents preferred larger cowpea grains, while 56% were not concerned about the size of the grain. A paltry 2% of the farmers were interested in pod size, while 98% did not regard it as important. Thirteen percent of the farmers were interested in climbing varieties, while 87% considered high grain yield as of the utmost importance.
Author: Victoria Yilwa
Publisher: LAP Lambert Academic Publishing
ISBN: 9783847300014
Category :
Languages : en
Pages : 228
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Book Description
The book 'Genetics of cowpea' is a compilation of research findings on the study of morphological traits of cowpea (Vigna unguiculata [L.] Walp.). The inheritance pattern of some qualitative traits, such as purple pigmentations on the vegetative parts of the plant, flower colour, pod colour, seed colour, shape and texture, plant habit, and number of branches; and some quantitative traits, such as days to flower, days to maturity, pod length, peduncle length and seed weight are discussed. These traits exhibited monogenic, digenic and multigenic patterns of inheritance with various types of gene interactions which include dominance, complementarity, epistatis, etc. Some of these coloured parts of the plant showed close association with each other which could either be as a result of pleiotropy or linkage. The literature cited in the text is given at the end of the book. The book will meet the needs of university students, plant breeders and researchers.
Author: Williams Manggoel
Publisher: LAP Lambert Academic Publishing
ISBN: 9783847312000
Category :
Languages : en
Pages : 88
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Book Description
The Nigerian cowpea accessions differ in phenolgy with respect to flowering and other quantitative traits. Field experiments were carried out to investigate the inheritance patterns of flowering time and quantitative traits in cowpea. The distribution of the progenies with respect to days to flowering showed combine effect of both maternal and nuclear influence. The parents and progenies differed significantly (p>0.05) in days to flowering and other yield traits assessed. Principal component analysis revealed that the most effective characters for distinguishing the parents and progenies included days to flowering, no. of peduncles plant-1, no. of flowers plant-1, no. of pods plant-1 and grain yield. The cluster means of the first two principal axes grouped the accessions into two clusters. Cluster I comprised early flowering (>45 days) day neutral accessions that were relatively poor in the yield traits assessed. Conversely, the accessions in cluster II were late flowering (
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 116
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Book Description
Author: Pathmanathan Umaharan
Publisher:
ISBN:
Category : Cowpea
Languages : en
Pages : 716
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Book Description
