Download or read book Heterosis for Grain Quality Characters and Yield Attributes in Inter Varietal F1 Crosses of Rice Oryza Sativa L written by SHANTHALA J and published by . This book was released on 1993 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heterosis and Hybrid Rice Breeding written by Sant Singh Virmani and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rice is the most important food crop of the developing world and the demand for it is growing. Provided here is a concise account of hybrid breeding in rice, a newly deployed breeding approach to increase the yield. Research on heterosis, male sterility systems, outcrossing mechanisms, disease/insect management, and grain quality considerations in hybrid rice are reviewed. The book contains a wealth of useful information for practicing hybrid rice breeders, seed producers, researchers, and students of plant breeding.
Download or read book Plant Breeding Abstracts written by and published by . This book was released on 1999 with total page 1132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heterosis and Combining Ability Studies in Rice Oryza Sativa L written by Nagaraju Chakali and published by LAP Lambert Academic Publishing. This book was released on 2014-12-12 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: The project combining ability and heterosis in a study involving 6 parents and 15 f1 hybrids of rice revealed that among parents, nlr 33654 recorded high per se performance and desirable gca effects for grain yield per plant followed by total number of productive tillers per plant. among 15 f1 crosses, nlr 33654 x mtu 4870 recorded the high per se performance and sca effects for grain yield per plant, total number of productive tillers per plant and number of grains per panicle. The hybrid, nlr 33654 x mtu 4870 displayed high standard heterosis for number of grains per panicle, grain yield per plant, test weight, total number of productive tillers per plant and kernel l/b ratio whereas mtu 1010 x bpt 5204 displayed high standard heterosis for plant height, total number of productive tillers per plant, panicle length, number of grains per panicle, grain yield per plant, harvest index and kernel l/b ratio. character association indicated highly significant positive association of number of grains per panicle and total number of productive tillers per plant.high gcv and pcv were recorded for total number of productive tillers per plant and grain yield per plant.
Download or read book Indian Science Abstracts written by and published by . This book was released on 1993 with total page 1046 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 1975-07 with total page 1398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetics Abstracts written by and published by . This book was released on 1990 with total page 970 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic and Molecular analysis of yield and physiological traits in three line hybrids in rice Oryza sativa L under aerobic condition written by Sathya Ramalingam and published by GRIN Verlag. This book was released on 2012-11-27 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Doctoral Thesis / Dissertation from the year 2012 in the subject Biology - Genetics / Gene Technology, Tamil Nadu Agricultural University (Madurai Agricultural College and Research Institute), course: Ph.D, language: English, abstract: An investigation in rice (Oryza sativa L.) was carried out subjecting six ‘lines’ and 15 ‘testers’ crossed in a Line x Tester mating design to estimate gene action, combining ability and heterosis for yield and drought tolerant traits under aerobic condition. The 21 parents were also surveyed using SSR markers. From the Line x Tester analysis, the hybrids exhibited significant variation among themselves for all the characters studied under aerobic condition. The study of gene action for drought tolerance and yield component traits revealed that all the traits exhibited dominant gene action which was predominant. Therefore, to harness the dominant gene effects, either heterosis breeding or selection at later generations would be an appropriate breeding methodology. Based on the per se performance of lines and testers, the following parents i.e., IR79128A (L1), IR79156A (L2), COMS14A (L5), COMS24A (L6), IR 80286-22-3-6-1R (T3) and IR7925A-428-2-1-1R (T4) were adjudged as the best parents and crosses involving them would be expected to throw desirable segregants for both yield and drought tolerant traits under aerobic condition. Based on the gca effects, the parents IR79128A (L1), IR70369A (L4), IR79156A (L2), BI-33 (T15), IR79582-21-2-2-1R (T5), KMP-105 (T11), T1 (IR 69726-29-1-2-2R) and MAS - 946-1 (T9) were the best general combiners and the crosses involving them would result in the identification of superior segregants with favourable genes for both drought and yield. Out of 21 parents evaluated based on per se and gca effects, three ‘lines’ viz., IR79128A (L1), IR79156A (L2) and IR70369A (L4) and three ‘testers’ viz., IR7925A-428-2-1-1R (T11), KMP -148 (T12) and BI-33 (T15) were identified as the best genotypes which will be utilized in further breeding programmes as parents for improvement of yield and drought tolerance under aerobic conditions. The cross combination IR70369A / MAS -26 (L4 x T10) was identified as the best for recombination breeding to get desirable segregants for yield and drought tolerant traits under aerobic conditions. The cross combinations viz., IR70369A / IR 7925A-428-2-1-1R (L4 x T4) and IR70369A / KMP-105 (L4 x T11) had high per se, sca effects and standard heterosis for drought tolerant and yield traits under aerobic conditions.
Download or read book Agrindex written by and published by . This book was released on 1995 with total page 936 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 2007 with total page 462 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 1986 with total page 1920 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Indian National Agricultural Bibliography 1975 84 written by and published by . This book was released on 1987 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heterosis and Combining Ability Analysis for Yield and Grain Quality Characteris tics in Rice Oryza Sativa L written by Y. Satiish and published by . This book was released on 2000 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Inheritance of Cool temperature Seedling Vigor in Rice Oryza Sativa L and Its Relationships with Other Agronomic Characters written by Cheng Chang Li and published by . This book was released on 1975 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 1985 with total page 1052 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Analysis of Yield Component Traits in Rice Oryza Sativa L written by S. Rajkumar and published by LAP Lambert Academic Publishing. This book was released on 2014-02 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present was carried out on "Genetic analysis of yield component traits in rice. Diallel analysis was carried out based on the method I and model I as suggested by Griffing. Seven economically important yield components traits were evaluated based on per se performance, general and specific combining ability effects, gene action and heterosis. The cross ADT 36 x ADT 37 and ASD 16 x ADT 36 exhibited highly significant sca effects and highly significant heterosis for grain yield and for most of its yield component traits. Hence, these crosses can be exploited for heterosis breeding provided cms system is available in the genetic background of ADT 36 and ASD 16 and thereby amidst farming community."
