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Download or read book Inheritance of Prolificacy in Crosses of Selected Prolific and Non prolific Lines of Corn Zea Mays L written by Mohammadullah Obaidi and published by . This book was released on 1978 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on the Inheritance and Physiology of Prolificacy in Maize written by Mark Earl Sorrells and published by . This book was released on 1977 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: In two different experiments, the inheritance of prolificacy, and the relationship of multiple ear development to time intervals between developmental stages of reproductive structures were studied in maize (Zea mays L.) using both quantitative and' qualitative methods of' genetic analysis. The inheritance of time intervals between initiation of tassel and ear shoot meristems was examined in a third experimento A six-line partial diallel involving unrelated parents, F1's, and F2's were gro__ at plant densities of 17,200 and 34,400 plants/ha over two years. General (GCA) and speci-fie (SCA) combining ability effects were significant forboth ear number and multiple-ear-weight index (_JEWI) with GCA:SCA ratios ranging irem 12:1 to 18:1 for ear number and irem 8:1 to 21:1 for mIT. Positive phenotypic and genotypic correlations were obtained between the time intervals, first-to-second ear shoot emergence and first-to-second silk. Also, silking interval was negatively correlated with both ear number and MEWI. Among related inbred linest_eir F1's, F2's, and back-cresses, additive gene effects were highly significant for ear number and MEWI, and dominance effects were significant(0.05 leveI) for MEWI.Negative correlations were observed 4 between ear number and the time periods, ear shoot emergence-to-pollen-shed, first-to-second ear shoot emergence, and first-to-second silk. For the F1 and segregating generations of one pair of related liDes, a greater frequency of second ears occurred on plants having fewer nades above the first ear. ln both experiments, prolificacy factors segregated in a manner predictable trem the penetrance and genetic segre-gation inferred trem parents and F1 's. In addition, 'a meth-od is presented which permits genotypic classification of individual plants for testing segregation ratios and sub-sequent progeny testing. The garoe six parents and 15 F l' s as were used in the study on ear number were dissected daily and the dates of initiation of tassel and ear shoot meristems recorded.General combining ability effects were highly significant for the time periods tassel-to-first ear shoot initiation and firs'!;-to-second ear shoot ini tiation. Only the time period between ini tiation of the first and second ear shoot was correlated (0.01 leveI) with both ear number and MEWI.
Download or read book Study of Prolific and Non prolific Corn Zea Mays L Selections in Intercropping with Spring Wheat Triticum Aestivum L and with Dry Beans Phaseolus Vulgaris L written by Woerjono Mangoendidjojo and published by . This book was released on 1983 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Genetics of Prolificacy in Corn written by Robert Lovell Ellsworth and published by . This book was released on 1971 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Inheritance of Prolificacy in Corn Z e a M a y s L written by Jose Francisco F. De Toledo and published by . This book was released on 1978 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: The association of prolificacy with yield has been recently well documented. Other advantages of prolific maize are resistance to barrenness and tolerance of environmental stress. Therefore, prolificacy is an important component of corn; knowledge of its inheritance would be of great value to plant breeders in their efforts to improve yield. The mode of inheritance of the prolific potential is still a point of controversy. There are some reports which indicate a relatively simple mode of inheritance with relatively high heritability, especially when compared to heritability of yield. However, there are other reports which indicate that prolificacy may be influenced by many environmental components. The purpose of this work was to test a two-locus model of inheritance for prolificacy as proposed by Harris (1974). Certain other questions raised by the work of Harris, such as the effect of environment on prolificacy, were also investigated here.
Download or read book Specialty Corns written by Arnel R. Hallauer and published by CRC Press. This book was released on 2000-08-23 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Completely revised and updated, the Second Edition of Specialty Corns includes everything in the first edition and more. Considered the standard in this field, significant changes have been made to keep all the information current and bring the references up-to-date. Two new chapters have been added to keep up with the latest trends: Blue Corn and
Download or read book Genetics Abstracts written by and published by . This book was released on 1979 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Meeting written by Eucarpia. Maize and Sorghum Section and published by . This book was released on 1979 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Inheritance of Prolificacy and Maturity in Crosses of Southern X Northern Maize Germ Plasm written by Farrell Mull Bagshaw and published by . This book was released on 1963 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Breeding Abstracts written by and published by . This book was released on 1997 with total page 1084 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Indonesian Journal of Crop Science written by and published by . This book was released on 1990 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agronomy Abstracts written by and published by . This book was released on 1973 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agrindex written by and published by . This book was released on 1994 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Indian Journal of Genetics Plant Breeding written by and published by . This book was released on 2006 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selection Methods in Plant Breeding written by Izak Bos and published by Springer Science & Business Media. This book was released on 2013-11-21 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our requirement for plant breeders to be successful has never been greater. However one views the forecasted numbers for future population growth we will need, in the immediate future, to be feeding, clothing and housing many more people than we do, inadequately, at present. Plant breeding represents the most valuable strategy in increasing our productivity in a way that is sustainable and environmentally sensitive. Plant breeding can rightly be considered as one of the oldest multidisciplin ary subjects that is known to humans. It was practised by people who first started to carry out a settled form of agriculture. The art, as it must have been at that stage, was applied without any formal underlying framework, but achieved dramatic results, as witnessed by the forms of cultivated plants we have today. We are now learning how to apply successfully the results of yet imperfect scientific knowledge. This knowledge is, however, rapidly develop ing, particularly in areas of tissue culture, biotechnology and molecular biology. Plant breeding's inherent multifaceted nature means that alongside obvious subject areas like genetics we also need to consider areas such as: statistics, physiology, plant pathology, entomology, biochemistry, weed science, quality, seed characteristics, reproductive biology, trial design, se lection and computing.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1991 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt:
