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Effects Of Composition Of Haulms From Cowpea Crops Vigna Unguiculata L Walp On Growth And Yield Of A Subsequent Wheat Crop
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Book Synopsis Effects of Composition of Haulms from Cowpea Crops (Vigna Unguiculata (L.) Walp.) on Growth and Yield of a Subsequent Wheat Crop by : Anan Pintarak
Download or read book Effects of Composition of Haulms from Cowpea Crops (Vigna Unguiculata (L.) Walp.) on Growth and Yield of a Subsequent Wheat Crop written by Anan Pintarak and published by . This book was released on 1987 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Plant Growth Regulators on Growth, Yield and Seed Quality in Cowpea (Vigna Unguiculata (L.) Walp) by : GANAGER TAMMANNA S
Download or read book Effect of Plant Growth Regulators on Growth, Yield and Seed Quality in Cowpea (Vigna Unguiculata (L.) Walp) written by GANAGER TAMMANNA S and published by . This book was released on 1998 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 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 by : Severin Polreich
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.
Book Synopsis Lost Crops of Africa by : National Research Council
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.
Book Synopsis Annual Report of the Senate for ... by : University of Western Australia
Download or read book Annual Report of the Senate for ... written by University of Western Australia and published by . This book was released on 1988 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1990 with total page 1254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Energy Allowances and Feeding Systems for Ruminants by : Great Britain. Ministry of Agriculture, Fisheries and Food
Download or read book Energy Allowances and Feeding Systems for Ruminants written by Great Britain. Ministry of Agriculture, Fisheries and Food and published by . This book was released on 1975 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles; Food energy; Measurements of metabolisable energy; Metabolisable energy of the ration; Matabolisable energy concentration of rations; Metabolisable energy requirements; Maintenance; Liveweight gain; Milk production; Mobilisation of body reserves; Pregnancy; A net energy system for growing animals; Net energy requirements; Net energy values of foods; Animal production level; Safety margins; Dairy cows; Calculation of metabolisable energy allowances; Liveweight change; Daily ME allowances; Appetite Limits for dairy cows; Checking a ration; Ration formulation; Rapid method; Linear programming; Feeding the dairy cow; Significance of liveweight changes; Ration formulation for stages of lactation; Feeding according to yield; Energy requirements of grazing cows; Growing and fattening cattle; Prediction of performance; Ration calculations; Predicted liveweight gain; Calculation of metabolisable energy allowances; Ration formulation; Rapid method; Linear programming; Net energy system for ration formulation; Animal production level; Net energy values of foods; Net energy allowances; Ration formulation; Replacement values of foods; Linear programming; Sheep; Pregnant and lactating ewes; Maintenance allowances; Pregnancy allowances; Ration formulation; Growing and fattening sheep; Performance prediction; Prediction of liveweight gain; Calculation of metabolisable energy allowances; Net energy system for ration formulation; Net energy allowances; Animal prodution level; Net energy values of foods; Replacement values of foods; Metabolisable energies of foods; Energy values of foods; Digestibility measurements of foods; Metabolisable energy values of foods; Prediction of the ME of forages; Estimation of the ME of compound foods; Tables of food composition.
Book Synopsis Effect of Plant Geometry and Levels of Phosphorus on Growth, Yield Andquality of Cowpea (Vigna Unguiculata L. Walp) Under Dryland Conditions by : Kapoor Singh Yadav
Download or read book Effect of Plant Geometry and Levels of Phosphorus on Growth, Yield Andquality of Cowpea (Vigna Unguiculata L. Walp) Under Dryland Conditions written by Kapoor Singh Yadav and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advances in Cowpea Research by : B. B. Singh
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.
Book Synopsis Effect of Sulphur, Boron and Zinc on Growth, Yield and Nodulation of Cowpea (Vigna Unguiculata L. Walp) by : SEENAPPA C
Download or read book Effect of Sulphur, Boron and Zinc on Growth, Yield and Nodulation of Cowpea (Vigna Unguiculata L. Walp) written by SEENAPPA C and published by . This book was released on 2001 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Yield-limiting Processes in Cowpea (Vigna Unguiculata (L.) Walp.) Cultivar Vita-5 by : John F. Argall
Download or read book Yield-limiting Processes in Cowpea (Vigna Unguiculata (L.) Walp.) Cultivar Vita-5 written by John F. Argall and published by . This book was released on 1983 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Calcium And Sulphur on the Growth and Yield of Cowpea [vigna Unguiculata L.] Walp and Sunflower [helianthus Annus L.] in the Acid of Bangalore by : Puttaswamy. H.
Download or read book Effect of Calcium And Sulphur on the Growth and Yield of Cowpea [vigna Unguiculata L.] Walp and Sunflower [helianthus Annus L.] in the Acid of Bangalore written by Puttaswamy. H. and published by . This book was released on 1984 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Approaches for Overcoming Yield Limitations in Cowpea (Vigna Unguiculata (L.) Walp.) by : Moses Bauleni Kwapata
Download or read book Approaches for Overcoming Yield Limitations in Cowpea (Vigna Unguiculata (L.) Walp.) written by Moses Bauleni Kwapata and published by . This book was released on 1989 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Inter-row Spacing and Growth Retardant Treatments on Growth and Yield Attributes of Cowpea (Vigna Unguiculata (L.) Walp.) Cultivars During Different by : RAJANNA A
Download or read book Effects of Inter-row Spacing and Growth Retardant Treatments on Growth and Yield Attributes of Cowpea (Vigna Unguiculata (L.) Walp.) Cultivars During Different written by RAJANNA A and published by . This book was released on 1986 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Yield and Growth Responses of Cowpea (Vigna Unguiculata (L.) Walp.) Genotypes to Fertilization by : Samuel Avendan̄o Laguna
Download or read book Yield and Growth Responses of Cowpea (Vigna Unguiculata (L.) Walp.) Genotypes to Fertilization written by Samuel Avendan̄o Laguna and published by . This book was released on 1981 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Growth, Development and Yield of Cowpeas (Vigna Unguiculata (L.) Walp) in Response to Spacing, Nitrogen and Plant Growth Retardants by : Amadou Tijan Jallow
Download or read book Growth, Development and Yield of Cowpeas (Vigna Unguiculata (L.) Walp) in Response to Spacing, Nitrogen and Plant Growth Retardants written by Amadou Tijan Jallow and published by . This book was released on 1985 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1990-12 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: