Download or read book An Evaluation of Early Generation Testing for Combining Ability of Restorer Lines in Grain Sorghum written by Darrell Thaine Rosenow and published by . This book was released on 1970 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effectivinese of early generation testing for combinig ability for grain yield in grain sorghum restorer lines was studied at College Station, Texas, Two well-Known restorer lines, TX 7078 and TX 09, were crossed and resulting F@, F$, and F^ segregates were evaluated for combining ability. In the F2 population, 70 F2 plants were crossed to each of four male-sterile lines, A Tx 3197 (Combine Kafir-60), A Tx 398 (Martin), A Tx 378 (Redlan), and A Tx 3048 (Redbine sel.). These "F2 hybrids" were grown in a replicated test in 1962. Based on the mean yield of the four hybrids with each F2, 12 high- and 12 low-combining F2's were selected for advancement to the F4 generation. The F4 lines from each of these 24 selected F2's were crossed to each of the same four male-steriles and the hybrids tested in 195=63. Three high-and three low-combining F2 families were closen for further study in the F6. The F6 lines were crossed of the same four male-steriles and the hybrids tested in 1964. By compring, within families, the yield of "F2 hybrids" with the yield of "F4 hybrids" and "F6 hybrids, the effectiveb=ness of early generation testing for combining ability was estimated. High-combining F2's produced F4 lines and F6 lines that were significantly higher in combining ability than the F4 and F6 lines derived from low-combining F2's. Correlation coefficients for yield between "F2 hybrids" and "F4 hybrids', F2 hybrids" and "F6 hybrids"' and "F4 hybrids" and F6 hybrids" were generally large, positive, and significant (...).
Download or read book Evaluation of Partially Converted Lines from the Sorghum Conversion Program to Determine Combining Ability and Heterosis for Early Testing written by Jody L. Gilchrest and published by . This book was released on 2017 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Lines from the Sorghum Conversion Program for Combining Ability Heterosis and Genetic Effects in Single cross and Three way Hybrids written by Paisan Laosuwan and published by . This book was released on 1975 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Combining Abilities and Heritability from Incomplete Diallel Systems in Grain Sorghum written by and published by . This book was released on 1976 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress Report written by and published by . This book was released on 1971 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Consolidated Progress Report written by and published by . This book was released on 1976 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Enhancement of Rabi Sorghum written by Sanjana Reddy and published by Academic Press. This book was released on 2015-05-28 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetic Enhancement of Rabi Sorghum – Adapting the Indian Durras presents both the historical background and the recent research done in breeding this important world crop for more global production. Its chapters cover topics in origin and taxonomy, morphology and breeding behavior, genetics, and cytogenetics, also looking at production, nutrition, and alternate uses. The durra race is Ethiopian in origin and its introgression with wild forms permitted adaptation to drier conditions. These have migrated and adapted to the currently known crop that is cultivated in the winter season and commonly called rabi sorghums. Grown under receding soil moisture conditions, rabi sorghums have tolerance to abiotic stresses apart from biotic stresses, unlike the rainy sorghums that are grown widely in the world. However, they must be more resilient to rapid changes in climate, for example. The variability from winter sorghums is being introgressed into rainy sorghums. With the yield plateaus reached and sorghum gaining importance as a food crop, this book will be of importance to those studying durras and their breeding. Presents both the historical background and most recent research done in breeding rabi sorghum for more global production Provides information on the adaptation of the crop and the ways it has migrated to the currently known crop, which is cultivated in winter season and commonly called as rabi sorghum Explores strategies for resilience as the crop must be prepared to withstand rapid and varying changes in climate
Download or read book Hybrid Rice Breeding Manual written by S. S. Virmani and published by Int. Rice Res. Inst.. This book was released on 1997 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heterosis breeding and hybrid rice; Male sterility systems in rice; Organization of hybrid rice breeding program using CMS system; Source nursery; CMS maintenance and evaluation nursery; Testcross nursery; Restorer purification nursery; Backcross nursery; Combining ability nursery; Breeding rice hybrids with TGMS system; Nucleus and breeder seed production of A, B, R, and TGMS lines; Seed production of experimental rice hybrids; Evaluation of experimental rice hybrids; Improvement of parental lines; Methods of enhancing the levels of heterosis; Quality assurance procedures in hybrid rice breeding.
Download or read book Genetic Diversity and Combining Ability Among Sorghum Conversion Lines written by Rafael Arturo Mateo Moncada and published by . This book was released on 2006 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of AFLP markers allowed the identification of five strong clusters through estimates of genetic similarities. This classification did not group the lines by either their genetic background or their fertility reaction. This study provides information to identify specific combinations that would help to understand heterotic relationships in sorghum, and support the suggestions made by Menz and Gabriel that races in sorghum are not well defined.
Download or read book A Guide to Sorghum Breeding written by Leland R. House and published by . This book was released on 1982 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Crop Improvement written by Manjit S. Kang and published by CRC Press. This book was released on 2002-01-28 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive book provides the latest authoritative scientific information on improvement of both temperate and tropical crops. Covering a range of essential food and fiber crops, Crop Improvement: Challenges in the Twenty-First Century addresses physiological and biochemical responses of plants to drought and heat stress, genotype-by-environment interactions, and use of best linear unbiased prediction. It also emphasizes the need to integrate molecular genetic techniques with traditional plant breeding methods to develop hardier, more productive crops. To view an excerpt online, find the book in our QuickSearch catalog at www.HaworthPress.com.
Download or read book Sorghum written by C. Wayne Smith and published by John Wiley & Sons. This book was released on 2000-12-25 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt: The newest addition to the Wiley Series in Crop Science, this book is an all-in-one guide to sorghum, one of the eight major grain crops grown worldwide. While presenting information in adequate detail for scientists, it is also an invaluable reference for growers, processors, and grain merchants.
Download or read book Advances in Agronomy written by and published by Academic Press. This book was released on 2004-07-17 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Agronomy continues to be recognized as a leading reference and a first-rate source of the latest research in agronomy. Major reviews deal with the current topics of interest to agronomists, as well as crop and soil scientists. As always, the subjects covered are varied and exemplary of the myriad subject matter dealt with by this long-running serial. Editor Donald Sparks, former president of the Soil Science Society of America and current president of the International Union of Soil Science, is the S. Hallock du Pont Chair of Plant and Soil Sciences at The University of Delaware. Volume 83 contains five excellent reviews that discuss topics critical to agricultural and environmental sustainability. Maintains the highest impact factor among serial publications in Agriculture Presents timely reviews on important agronomy issues Enjoys a long-standing reputation for excellence in the field
Download or read book Comprehensive Dissertation Index 1861 1972 Agriculture written by Xerox University Microfilms and published by . This book was released on 1973 with total page 1226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1973 with total page 1244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Improvement of Vegetable Crops written by G. Kalloo and published by Newnes. This book was released on 2012-12-02 with total page 846 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetic improvement has played a vital role in enhancing the yield potential of vegetable crops. There are numerous vegetable crops grown worldwide and variable degrees of research on genetics, breeding and biotechnology have been conducted on these crops. This book brings together the results of such research on crops grouped as alliums, crucifers, cucurbits, leaf crops, tropical underground and miscellaneous. Written by eminent specialists, each chapter concentrates on one crop and covers cytology, genetics, breeding objectives, germplasm resources, reproductive biology, selection breeding methods, heterosis and hybrid seed production, quality and processing attributes and technology. This unique collection will be of great value to students, scientists and vegetable breeders as it provides a reference guide on genetics, breeding and biotechnology of a wide range of vegetable crops.
Download or read book Disease and Insect Resistance in Plants written by Dhan Pal Singh and published by Science Publishers. This book was released on 2005 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book covers in detail the principles and practices of conventional plant breeding as well as newer and recent biotechnological tools such as marker assisted selection and transgenic crops. The book is suitable for use as an advanced text. A basic knowledge of plant pathogens, insect-pests and their genetics is assumed. In addition, the book can be used as reference book by plant pathologists, entomologists and geneticists engaged in developing germplasm, with resistance to biotic stresses. Attempts have been made to draw specific examples from as many different crop plants and their harmful parasites as possible, and an extensive reference list provides access to the original literature.
