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:
Download or read book Genetic Variability and Divergence Studies in Cowpea Vigna Unguiculata L Walp written by Gummadi Sumathi and published by . This book was released on 2004 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on Genetic Deivergence in Cowpea Vigna Unguiculata L Walp written by Ashwani Kumar Arya and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Cowpea Research written by B. B. Singh and published by IITA. This book was released on 1997 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cowpea: taxonomy, genetics, and breeding, physiology and agronomy, diseases and parasitic weeds, insect pests, postharvest technology and utilization. Biotechnological applications.
Download or read book Cowpea Genetic Resources written by N. Q. Ng and published by . This book was released on 1990 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: THE GENETIC RESOURCE. ITALIAN CONTRIBUTIONS. THE JOINT COLLABORATIVE PROJECT ON COWPEA GERMPLASM COLLECTION AND EVALUATION. GERMPLASM EXPLORATION AND COLLECTION. CHEMICAL CHARACTERIZATION AND EVALUATION. CYTOLOGY AND HISTOLOGY. BIOTECHNOLOGY.
Download or read book Studies on Character Association and Genetic Divergence in Cowpea Vigna Unguiculata L Walp written by Vineeta Kumari and published by . This book was released on 2002 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lost Crops of Africa written by National Research Council and published by National Academies Press. This book was released on 2006-10-27 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is the second in a series of three evaluating underexploited African plant resources that could help broaden and secure Africa's food supply. The volume describes the characteristics of 18 little-known indigenous African vegetables (including tubers and legumes) that have potential as food- and cash-crops but are typically overlooked by scientists and policymakers and in the world at large. The book assesses the potential of each vegetable to help overcome malnutrition, boost food security, foster rural development, and create sustainable landcare in Africa. Each species is described in a separate chapter, based on information gathered from and verified by a pool of experts throughout the world. Volume I describes African grains and Volume III African fruits.
Download or read book Studies on Genetic Divergence and Inter relationship Among Yield and Its Component Traits in Cowpea Vigna Unguiculata L Walp With CD Copy written by Nguyen Ngoc Vu and published by . This book was released on 2017 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book GGE Biplot Analysis written by Weikai Yan and published by CRC Press. This book was released on 2002-08-28 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research data is expensive and precious, yet it is seldom fully utilized due to our ability of comprehension. Graphical display is desirable, if not absolutely necessary, for fully understanding large data sets with complex interconnectedness and interactions. The newly developed GGE biplot methodology is a superior approach to the graphical analys
Download or read book Advances in Plant Breeding Strategies Legumes written by Jameel M. Al-Khayri and published by Springer Nature. This book was released on 2019-10-08 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines the development of innovative modern methodologies towards augmenting conventional plant breeding, in individual crops, for the production of new crop varieties under the increasingly limiting environmental and cultivation factors to achieve sustainable agricultural production, enhanced food security, in addition to providing raw materials for innovative industrial products and pharmaceuticals. This is Vol 7, subtitled Legumes, focuses on advances in breeding strategies using both traditional and modern approaches for the improvement of individual legume crops. Included in this volume are Adzuki bean, Black gram, Chickpea Cluster bean, Common bean, Cowpea, Faba bean, Hyacinth bean, Lentil, Mung bean, Pigeonpea and Soybean. This volume is contributed by 57 internationally reputable scientists from 9 countries. Each chapter comprehensively reviews the modern literature on the subject and reflects the authors own experience.
Download or read book Genetic Studies on Qualitative and Quanitative Characters in Cowpea Vigna Unguiculata L Walp written by B. D. Biradar and published by . This book was released on 1988 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Studies in Cowpea Vigna Ungiculata L Walp written by J.C. Karkannavar and published by . This book was released on 1988 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Variability and Correlation Studies for Grain Yield and Nutritional Attributes in Cowpea Vigna Unguiculata L Walp written by Ramesh Kumar and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Genetic Analysis of Seed Yield and Its Components in Cowpea Vigna Unguiculata L Walp written by Anupam Singh and published by . This book was released on 2000 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessing successive leaf yield performance of dual purpose cowpea Vigna unguiculata to decrease seasonal shortage of nutrients in resource poor small scale households of Tanzania and Uganda written by Severin Polreich and published by Cuvillier Verlag. This book was released on 2011-03-23 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study presents a method to assess yield performance of dual-purpose cowpea types for human consumption and to reveal potentials for further improvement of its use as leafy vegetable. Eleven cowpea accessions with different genetic background and sample status were chosen from AVRDC’s working collection in Arusha, Tanzania. Among them, dual-purpose cowpeas like Dakawa, Ex Iseke and Ngoji were present that the center has been distributing to local farmers. Multi-location trials in typical cowpea production environments were established both on farm and on station in the regions Arusha, Dodoma, and Kilimanjaro in Tanzania and in Eastern Region, Uganda during the short and long rainy season 2007 and 2008, respectively. Young, tender leaves were picked in successive leaf harvests about every and two weeks until the plants did not produce further leaves. Cowpea seeds were harvested when pods reached 80% maturity. Data of yield parameters were analyzed with analysis of variance (ANOVA), stability analyses were carried out according to the dynamic and static concepts. Reliability of leaf and seed yield performances were calculated based on the probability of outperformance of local check cowpeas that were previously recommended by farmers and extension workers in informal group sessions. Through NIRS, crude protein and iron contents were assessed in leaves obtained from the second leaf harvests at the different locations and from up to subsequent leaf harvests. Dual-purpose utility for smallholders was assessed through (i) an index of superiority (Si), in which reliabilities of leaf yield across repeated leaf harvests and seed yield were weighed and combined to overall yield benefit of the ith accession, (ii) effective plot length for nutritional component XY, to calculate the length of a plot (in m) that needs to be planted to sustain a five-head household for ten days with a recommended amount of nutrients, and (iii) responsiveness (Resp), reflecting changes of leaf yield (compensation) relative to changes in seed yield (sensitiveness) if harvesting frequency was intensified. Performance of single leaf yields was strongly influenced by environmental factors and, only in Arusha, accession-specific. Interactions between yield reliability and stability were site-specific. Overall, test-accessions achieved higher reliabilities in seed yield than in leaf yield. Only in the on-station trial in Eastern Region, accession IT82D-889, and in the on-farm trial in Kilimanjaro, ILRI11114 and Ex Iseke showed leaf yield reliabilities above 0.50. Iron content in cowpea leaves was highly dependent on environmental influences and varied from 157.4 mg kg-1 to 286.1 mg kg-1. Leaf CP had a broad-sense heritability of 0.87. Across accessions and environments the mean leaf CP content ranged from 37.4% of DM (IT93K-2045-29) to 33.9% of DM (Sudan). CP and leaf dry matter (DM) yield had significantly negative correlation coefficients between. Means of effective plot length for crude protein and iron varied by more than 50% across environments. Although CP, in contrast to iron, was genetically determined, its impact on differences in effective plot length was negligible as well, as differences in production of leaf DM per m2 were by far larger among accessions than those of CP contents. It was recommended to favor accessions with short effective plot lengths and higher CP contents in leaf yields over those with short effective plot lengths and low CP contents. In contrast to determinate cowpeas, indeterminate types increased their DM gain in aerial plant parts of leaf-harvested plants relatively to unharvested plants. Indeterminate cowpeas responded with high leaf yield increases if leaves were picked twice a week. Consequently yields of total edible DM of these plant types, comprising added seed and leaf yields, increased with intensification of leaf-harvesting frequency from once to twice a week. Determinate plant types yielded highest in total edible DM when only seed was harvested or in less intensive leaf-harvesting scenarios. Accessions with favorable responsiveness, reflecting leaf yield changes relative to seed yield changes under intensified leaf-harvesting frequency, were Sudan, ILRI11114, and IT93K2045-29. In contrast, Resps of SAM45 and ILRI15742 were poorest. Traits have to be identified that could explicitly improve Resp of cowpea types. Improving quantitative yield parameters should not result in quality decrease. The dual-purpose characteristics of local checks were mainly superior to the eleven test-accessions pointing to a demand on improved leaf yield performance that is not merely total leaf yield amount but also the continuance during repeated leaf harvesting. By the proposed method the status quo of a defined location, i.e. site-specific demands on germplasm, can be included in the analysis, serving as benchmark for improvement if the local check is chosen carefully. Since single leaf yields are the results of fairly complex and dynamic interactions between plant physiological processes and environmental conditions it is essential to conduct participatory variety selection and plant breeding trials for dual-purpose assessments in target environments and not ex situ.
Download or read book Inheritance of Pigmentation in Cowpea Vigna Unguiculata L Walp written by Yahaya Mustapha and published by LAP Lambert Academic Publishing. This book was released on 2012-08 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cowpea (Vigna unguiculata (L.) Walp) is an important food legume cultivated in many parts of the world covering Asia and Oceania, Middle East, Southern Europe and Central and South America. It constitutes a major source of dietary protein, starch, minerals and vitamins for many poor families especially in Africa. The cowpeas grown in different parts of the world vary widely in seed colour and type, and preferences change from region to region. These varying preferences necessitate the need to develop cowpea varieties with different characteristics as no single variety can be suitable for all regions. The need to have a better understanding of the genetics of pigmentation in cowpea therefore becomes essential. This book presents a holistic approach to the understanding of the genetics of pigmentation in cowpea with a view to elucidating the inheritance pattern of pigmentation in plant, flower and seed. This would be useful to geneticists and breeders in developing suitable strategies for the breeding of cowpea varieties that suit the varying needs of consumers.
