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Recurrent Selection For Drought Tolerance In Maize Zea Mays L And Study Of Heterotic Patterns Of Maize Populations From Eastern Kenya
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Book Synopsis Recurrent Selection for Drought Tolerance in Maize (Zea Mays L. and Study of Heterotic Patterns of Maize Populations from Eastern Kenya by : Philip Kipkoech Leley
Download or read book Recurrent Selection for Drought Tolerance in Maize (Zea Mays L. and Study of Heterotic Patterns of Maize Populations from Eastern Kenya written by Philip Kipkoech Leley and published by . This book was released on 2007 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Combined Half-sib and S1 Recurrent Selection for Drought Tolerance in a Maize (Zea Mays L.) Population by : Gilberto Sosa-Dominguez
Download or read book Combined Half-sib and S1 Recurrent Selection for Drought Tolerance in a Maize (Zea Mays L.) Population written by Gilberto Sosa-Dominguez and published by . This book was released on 1992 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Developing Drought and Low N-tolerant Maize by : G. O. Edmeades
Download or read book Developing Drought and Low N-tolerant Maize written by G. O. Edmeades and published by CIMMYT. This book was released on 1996 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: Incidence and intensity of drought and low N stresss in the tropics; Case studies strategies for crop production under drought and low n stresses in the tropics; Stress physology and identification of secondary traits; Physiology of low nitrogen stress; Breeding for tolerance to drought and low n stresses; General breeding strategies for stress tolerance; Progress in breeding drought tolerance; Progress in breeding low nitrogen tolerance; Experimental design and software.
Book Synopsis Enhancing the Contribution of Maize to Food Security in Ethiopia by : Mandefro Nigussie
Download or read book Enhancing the Contribution of Maize to Food Security in Ethiopia written by Mandefro Nigussie and published by CIMMYT. This book was released on 2002 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agrindex written by and published by . This book was released on 1993 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Breeding for drought and nitrogen stress tolerance in maize: From theory to practice by : M. Bänzinger
Download or read book Breeding for drought and nitrogen stress tolerance in maize: From theory to practice written by M. Bänzinger and published by CIMMYT. This book was released on 2000 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction - why breed for drought and low N tolerance?; Conceptual framework - breeding; Conventional approaches to improving the drought and low N tolerance of maize; Conventional approaches challenged; The challenge of breeding for drought and low N tolerance; Maize under drought and low N stress; Conceptual framework - physiology; Water and the maize plant; Nitrogen and the maize plant; Maize under drought and low N stress - consequences for breeding; Stress management; Drought; Low N stress; Statistical designs and layout of experiments; Increasing the number of replicates; Improved statistical designs; Field layout; Border effects from alleys; Secondary traits; Why use secondary traits?; How do we decide on the value of secondary traits in a drought or low N breeding program?; Secondary traits that help to identify drought tolerance; Secondary traits that help to identify low N tolerance: Selection indices - Combining information on secondary traits with grain yield; Combining information from various experiments; Breeding strategies; Choice of germplasm; Breeding schemes; Biotechnology: potential and constraints for improving drought and low N tolerance; The role of the farmer in selection; What is farmer participatory research and why is it important?; What is new about farmer participatory research?; Participatory methodologies.
Book Synopsis Recurrent Selection Methods for Maize Improvement by : Larry Lynn Darrah
Download or read book Recurrent Selection Methods for Maize Improvement written by Larry Lynn Darrah and published by . This book was released on 1977 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advances in Genetic Enhancement of Early and Extra-Early Maize for Sub-Saharan Africa by : Baffour Badu-Apraku
Download or read book Advances in Genetic Enhancement of Early and Extra-Early Maize for Sub-Saharan Africa written by Baffour Badu-Apraku and published by Springer. This book was released on 2017-11-10 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book focuses on the principles and practices of tropical maize improvement with special emphasis on early and extra-early maize to feed the increasing population in Sub-Saharan Africa. It highlights the similarities and differences between results obtained in temperate regions of the world and WCA in terms of corroboration or refutation of genetic principles and theory of maize breeding. The book is expected to be of great interest to maize breeders, advanced undergraduates, graduate students, professors and research scientists in the national and international research institutes all over the world, particularly Sub-Saharan Africa. It will also serve as a useful reference for agricultural extension and technology transfer systems, Non-governmental Organizations (NGOs) and Community-Based Organizations (CBOs), seed companies and community-based seed enterprises, policy makers, and all those who are interested in generating wealth from agriculture and alleviating hunger and poverty in Sub-Saharan Africa.
Book Synopsis Drought Stress in Maize (Zea mays L.) by : Muhammad Aslam
Download or read book Drought Stress in Maize (Zea mays L.) written by Muhammad Aslam and published by Springer. This book was released on 2015-11-20 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on early germination, one of maize germplasm most important strategies for adapting to drought-induced stress. Some genotypes have the ability to adapt by either reducing water losses or by increasing water uptake. Drought tolerance is also an adaptive strategy that enables crop plants to maintain their normal physiological processes and deliver higher economical yield despite drought stress. Several processes are involved in conferring drought tolerance in maize: the accumulation of osmolytes or antioxidants, plant growth regulators, stress proteins and water channel proteins, transcription factors and signal transduction pathways. Drought is one of the most detrimental forms of abiotic stress around the world and seriously limits the productivity of agricultural crops. Maize, one of the leading cereal crops in the world, is sensitive to drought stress. Maize harvests are affected by drought stress at different growth stages in different regions. Numerous events in the life of maize crops can be affected by drought stress: germination potential, seedling growth, seedling stand establishment, overall growth and development, pollen and silk development, anthesis silking interval, pollination, and embryo, endosperm and kernel development. Though every maize genotype has the ability to avoid or withstand drought stress, there is a concrete need to improve the level of adaptability to drought stress to address the global issue of food security. The most common biological strategies for improving drought stress resistance include screening available maize germplasm for drought tolerance, conventional breeding strategies, and marker-assisted and genomic-assisted breeding and development of transgenic maize. As a comprehensive understanding of the effects of drought stress, adaptive strategies and potential breeding tools is the prerequisite for any sound breeding plan, this brief addresses these aspects.
Download or read book Tropical Agriculture written by and published by . This book was released on 1992 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Recurrent Selection for Resistance to Maize (Zea Mays L.) Seedling Root Rot Caused by Pythium Ultimum by : C. Ejike Ago
Download or read book Recurrent Selection for Resistance to Maize (Zea Mays L.) Seedling Root Rot Caused by Pythium Ultimum written by C. Ejike Ago and published by . This book was released on 1976 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies of Drought Tolerance in Maize (Zea Mays L.) by : Thomas C. Kilen
Download or read book Studies of Drought Tolerance in Maize (Zea Mays L.) written by Thomas C. Kilen and published by . This book was released on 1968 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Recurrent Selection in Leaming and Midland Maize Populations by : Marcelo Javier Carena
Download or read book Evaluation of Recurrent Selection in Leaming and Midland Maize Populations written by Marcelo Javier Carena and published by . This book was released on 1999 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Favorable responses to selection were observed in traits that are essential for adaptation, especially in root lodging. S1-S2 recurrent selection was an effective method to adapt and improve both populations, suggesting an adequate balance between the selection among S1 and S2 progenies. Intrapopulational recurrent selection was also successful in increasing the heterotic expression between Leaming and Midland Yellow Dent. The first objective of our long-term program has been achieved and considerable improvements have been made. An alternative U.S. heterotic pattern has been confirmed and needs refinement, and an interpopulational-reciprocal recurrent selection program including improved selection cycles of Leaming and Midland Yellow Dent seems desirable.
Book Synopsis Efficiency of S2 Recurrent Selection for Improvement of Exotic and Semi-exotic Populations in Maize (Zea Mays L.) by : Carlos Ariel Iglesias
Download or read book Efficiency of S2 Recurrent Selection for Improvement of Exotic and Semi-exotic Populations in Maize (Zea Mays L.) written by Carlos Ariel Iglesias and published by . This book was released on 1989 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genomic Designing of Climate-Smart Cereal Crops by : Chittaranjan Kole
Download or read book Genomic Designing of Climate-Smart Cereal Crops written by Chittaranjan Kole and published by Springer Nature. This book was released on 2020-02-28 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights modern methods and strategies to improve cereal crops in the era of climate change, presenting the latest advances in plant molecular mapping and genome sequencing. Spectacular achievements in the fields of molecular breeding, transgenics and genomics in the last three decades have facilitated revolutionary changes in cereal- crop-improvement strategies and techniques. Since the genome sequencing of rice in 2002, the genomes of over eight cereal crops have been sequenced and more are to follow. This has made it possible to decipher the exact nucleotide sequence and chromosomal positions of agroeconomic genes. Most importantly, comparative genomics and genotyping-by-sequencing have opened up new vistas for exploring available biodiversity, particularly of wild crop relatives, for identifying useful donor genes.
Book Synopsis Recurrent Selection for Gray Leaf Spot (GLS) and Phaeosphaeria Leaf Spot (PLS) Resistance in Four Maize Populations and Heterotic Classification of Maize Germplasm from Western Kenya by : Philip Onyimbo Kwena
Download or read book Recurrent Selection for Gray Leaf Spot (GLS) and Phaeosphaeria Leaf Spot (PLS) Resistance in Four Maize Populations and Heterotic Classification of Maize Germplasm from Western Kenya written by Philip Onyimbo Kwena and published by . This book was released on 2007 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Tolerance to High Plant Densities and Plant Efficiency of Maize Breeding Population Developed by Recurrent Selection of Grain Yield by : T.M. Crosbie
Download or read book Evaluation of Tolerance to High Plant Densities and Plant Efficiency of Maize Breeding Population Developed by Recurrent Selection of Grain Yield written by T.M. Crosbie and published by . This book was released on 1978 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several recurrent relection schemes are being used to improve grain-yield performance of several maize (Zea mays L.) populations at the Iowa Agriculture and Home Economics Experiment Station. Three cycles of reciprocal full-sib selection in Iowa Two-ear Synthetic [BS10(FR)] and Pioneer Twc-ear Composite [BS11(FR)], seven cycels of reciprocal recurrent selection in Iowa Stiff Stalk Synthetic [BSSS(R)], Iowa Corn Borer Synthetic #1 [BSCB1(R)], and five cycels of half-sib recurrent selection in Lancaster Surecrop 9LANC) with maize inbred, Hy, as tester have been completed. I grew testcrosses of unimproved and improved populations of BS10(FR), BS11(FR), BSSS(R), BSCB1(R) And LANC, plus population crosses (i.e., CO X CO, CN X CN) of BS10(FR) X BS11(FR) and BSSS(R) X BSCB1(R) at three plant densities in three environments. Testers were maize inbreds Mo17, B77, and B79, My research was conducted: (1) to evaluate respones to plant densities of the CO and CN populations, (2) to study changes in several morphological and physiological traits associated with recurrent selection for increased grain yield, and (3) to caompare results obtained for testcrosses and populations crosses to evaluate combining ability for grain yield, density tolerance, and physiological traits. Reciprocal full-sib selection did not improve the response to plant densities of testcrosses and population crosses of BS10(FR) and BS11(FR). Furthermore, selection did not increase grain yield of BS10(FR) X BS11(FR) at 39.5 and 79.0 M plants/ha or of (...).
