Development of Three Line Aerobic Rice Hybrids
Author | : Sathya Ramalingam |
Publisher | : |
Total Pages | : 0 |
Release | : 2012 |
Genre | : |
ISBN | : 9783659234149 |
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Author | : Sathya Ramalingam |
Publisher | : |
Total Pages | : 0 |
Release | : 2012 |
Genre | : |
ISBN | : 9783659234149 |
Author | : S. S. Virmani |
Publisher | : Int. Rice Res. Inst. |
Total Pages | : 304 |
Release | : 1994 |
Genre | : Hybrid rice |
ISBN | : 9712200531 |
This symposium is a follow-up to one held in China in 1986. Since then considerable progress has been made in research and development of hybrid rice. This second international symposium was held under the umbrella of the International Rice Research Conference. Eighty scientists and seed production experts from 18 countries, IRRI and FAO attended. Contributions covered breeding, biotechnology, seed production, agronomy, plant physiology, plant pathology, entomology and economics.
Author | : |
Publisher | : Int. Rice Res. Inst. |
Total Pages | : 709 |
Release | : |
Genre | : |
ISBN | : 9712202526 |
Author | : Longping Yuan |
Publisher | : Food & Agriculture Organization of the UN (FAO) |
Total Pages | : 104 |
Release | : 1995 |
Genre | : Technology & Engineering |
ISBN | : |
Heterosis in rice; Rice cytoplasmic-genetic male sterility system; Procedures for breeding hybrid rice; Breeding for CMS lines and their maintainers; Breeding for restorer lines; Hybrid seed production and CMS line multiplication; Purifying parental lines and producing foundation seeds; hybrid rice cultivation practices; Breeding two-line system hybrid rice; Studies on one-line system hybrid rice development.
Author | : Sathya Ramalingam |
Publisher | : GRIN Verlag |
Total Pages | : 332 |
Release | : 2012-11-27 |
Genre | : Science |
ISBN | : 3656322260 |
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.
Author | : Mahmood-Ur- Rahman Ansari |
Publisher | : BoD – Books on Demand |
Total Pages | : 260 |
Release | : 2021-03-03 |
Genre | : Technology & Engineering |
ISBN | : 1838810315 |
“Recent Advances in Rice Research” is an interdisciplinary book dealing with diverse topics related to recent developments in rice research. The book discusses the latest research activities in the field of hybrid rice, various metabolites produced in rice and its biology, stress studies, and strategies to combat various biotic and abiotic stresses as well as rice economics, value addition, and product development. The book is written by an international team of researchers from all over the globe sharing their results in the field of rice research. I am hopeful that the scientific information available in this book will provide advanced knowledge for rice researchers, students, life scientists, and interested readers on some of the latest developments in rice research.
Author | : Shin Terashima |
Publisher | : |
Total Pages | : |
Release | : 2021-07-12 |
Genre | : |
ISBN | : 9781649971609 |
Author | : Sant S. Virmani |
Publisher | : Int. Rice Res. Inst. |
Total Pages | : 70 |
Release | : 1993 |
Genre | : Technology & Engineering |
ISBN | : 9712200450 |
Author | : S. S. Virmani |
Publisher | : Int. Rice Res. Inst. |
Total Pages | : 194 |
Release | : 1997 |
Genre | : Hybrid rice |
ISBN | : 9712201031 |
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.
Author | : National Foreign Assessment Center (U.S.) |
Publisher | : |
Total Pages | : 16 |
Release | : 1980 |
Genre | : Agricultural innovations |
ISBN | : |