Heterosis And Combining Ability Studies For Yield Quality And Stem Borer Resistance In Forage Sorghum
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Breeding Sorghum for Diverse End Uses
Author | : Aruna C |
Publisher | : Woodhead Publishing |
Total Pages | : 452 |
Release | : 2018-08-22 |
Genre | : Technology & Engineering |
ISBN | : 0081018800 |
Breeding Sorghum for Diverse End Uses is a comprehensive overview of all significant global efforts for the genetic improvement of sorghum, a major crop of many semi-arid nations that is suitable for a huge range of uses, from human food, to biofuels. Split into two main sections, the book initially reviews the genetic suitability of sorghum for breeding, also providing the history of the genetic improvement of the grain. Finally, other sections look at specific breeding programs that could be improved in a number of areas, including human food, animal feed and industrial usage. Readers in academics, research, plant genetics and sorghum development will find this resource of great value. In addition, it is essential reading for engineers who utilize sorghum for food, feed and industrial materials in industry. - Provides information on key advances in the genetic makeup of sorghum - Allows plant breeders to apply this research to effectively breed new strains of sorghum that are dependent on final usage goals - Includes the latest findings in each section to orient researchers to plans for future genetic enhancement
Genetic and Combining Ability Analysis of Some Agronomic and Grain Quality Characters in Sorghum
Author | : J.G.E.de FRANCA |
Publisher | : |
Total Pages | : 105 |
Release | : 1983 |
Genre | : |
ISBN | : |
The objective of this study was to evaluate the combining ability, heterosis and variance components of a set of selected restorers and male sterile in sorghum for the following characters: days to 50% flowering, plant height, panicle length, grain yield per panicle, number of grains per panicle, thousand grain weight, grain breaking strength, % floaters, % water absorption, flour particle size index, rolling quality of the dough and gel spreading. Twenty parental lines - 11 male steriles and 9 restorers and their 99 hybrids formed the experimental material. parents and hybrids were palnted in adjancent trials in a RBD design with threee replications each. The combining ability analysis followed a line x tester mating system. The experiments were carried out under rainfed conditions during the rainy (kharif) and post-rainy (Rabi) seasons of 1982 at ICRISAT Center, patancheru, A.P., India. Significant variation was observed in the genotypes studied for most of the charactrs analysed. Generally the restorers showed larger variation than the male sterile lines. Significant levels of heterosis and heterobeltiosis were observed for plant height, grain yield per panicle, grain number per panicle and % floaters. Dominace was in the direction of earliness, increased height, panicle length, grain number and yield, decreased seed weight, % floaters, flour particle size and gel spreading. The results revealed that most of the agronomic and grain quality characters were highly influenced by additive gene action. (...).