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Book Genetic Analysis of Some Quantitative Characters in Cowpea Vigna Unguiculata L Walp

Download or read book Genetic Analysis of Some Quantitative Characters in Cowpea Vigna Unguiculata L Walp written by P. R. Karat and published by . This book was released on 1987 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Genetics of Cowpea

    Genetics of Cowpea

    Book Details:
  • Author : Victoria Yilwa
  • Publisher : LAP Lambert Academic Publishing
  • Release : 2012-03
  • ISBN : 9783847300014
  • Pages : 228 pages

Download or read book Genetics of Cowpea written by Victoria Yilwa and published by LAP Lambert Academic Publishing. This book was released on 2012-03 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Book Cowpea Vigna unguiculata L Walp abstracts of world literature Vol V 1983 1985

Download or read book Cowpea Vigna unguiculata L Walp abstracts of world literature Vol V 1983 1985 written by and published by IITA. This book was released on with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Genetics of Flowering and Quantitative Traits in Vigna Unguiculata

Download or read book Genetics of Flowering and Quantitative Traits in Vigna Unguiculata written by Williams Manggoel and published by LAP Lambert Academic Publishing. This book was released on 2011-12 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 (

Book Genetic Studies on Different Plant Types of Cowpea Vigna Unguiculata L Walp

Download or read book Genetic Studies on Different Plant Types of Cowpea Vigna Unguiculata L Walp written by SARVAMANGALA S. C and published by . This book was released on 2005 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Quantitative Genetics of Seedling Drought Tolerance and Resistance to Drought enhanced Macrophomina Phaseolina Infection in Cowpea Vigna Unguiculata L Walp

Download or read book Quantitative Genetics of Seedling Drought Tolerance and Resistance to Drought enhanced Macrophomina Phaseolina Infection in Cowpea Vigna Unguiculata L Walp written by Wellington Muchero and published by . This book was released on 2007 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Genetic Diversity and Screening of Cowpea vigina Unguiculata L Walp Genotypes for Drought Tolerance in South Africa

Download or read book Genetic Diversity and Screening of Cowpea vigina Unguiculata L Walp Genotypes for Drought Tolerance in South Africa written by Gabriel Vusanimuzi Nkomo and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.