Download or read book Studies on Heterosis and Inbreeding Depression in Sorghum Sorghum Bicolor L Moench written by R. Vijaya Nirmala and published by . This book was released on 1999 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimates of Heterosis Inbreeding Depression and Location Interaction in Sorghum Sorghum Bicolor L Moench written by Abdul Azim Balla Abd-Allah and published by . This book was released on 1977 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Studies Relating to Heterosis and Combining Ability of Certain Forage Quality Parameters in Diverse Sorghum Sorghum Bicolor L Moench Genotypes written by V. Usha and published by . This book was released on 1991 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genetics of Yield Heterosis in Sorghum Sorghum Bicolor L Moench written by Jhansi Rani and published by LAP Lambert Academic Publishing. This book was released on 2014-01 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Post rainy sorghum is unique to India, which is mostly grown on residual soil moisture in southern states, subjected to various biotic and abiotic stresses. Keeping in view the low heterosis in post rainy hybrids compared to rainy season hybrids, the study was taken up with 41 genotypes to enumerate the approaches for enhancing the level of heterosis. There was a positive relationship between heterosis for grain yield and major yield components. Genetic diversity analysis showed importance of inter as well as intra group divergence in expression of heterosis. There was a general positive trend between hybrid yield and sca effect but at least one general combiner was involved in highest yielding crosses and there was positive relationship between heterosis and mean gca of parents. Major yield components were controlled by non additive gene effects hence it is proposed to breed parental lines with high gca effect with capability to produce high sca effect in hybrid combination to enhance the level of heterosis and productivity. The information in this book is useful for sorghum breeders and geneticists for formulating effective crop improvement programme.

Download or read book Combining Ability and Heterosis Studies for Adaptation in Newly Developed Male and Female Inbreds of Sorghum Sorghum Bicolor L Moench written by German Jose Perez and published by . This book was released on 1985 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Studies on Molecular Characterisation Heterosis and Combining Ability in Forrage Sorghum Sorghum Bicolor L Moench With CD Copy written by Ashok Kumar Behinwal and published by . This book was released on 2017 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agronomic Genetic and Genomic Approaches for Predicting Heterosis in Sorghum Sorghum Bicolor L Moench written by Frank Maulana and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The approach used to identify inbred lines that can produce superior hybrids is costly and time-consuming. It requires creation of all possible crosses and evaluation of the crosses to estimate combining abilities for the desired traits. Predicting heterosis or hybrid performance in any way possible may help to reduce the number of crosses to be made and evaluated. In this study, four sets of experiments were conducted to determine whether heterosis can be predicted based on inbred line performance, genetic distance between parents and genomic prediction model. The first experiment was aimed at assessing the levels of genetic diversity, population structure and linkage disequilibrium (LD) in 279 public sorghum inbred lines, based on 66,265 SNPs generated using the genotyping-by-sequencing (GBS) platform. The inbred lines were developed at different times over the last two decades and harbor robust diversity in pedigree and agronomic characteristics. Some of the inbreds are resistant to Acetolactate synthase (ALS) and Acetyl co-enzyme-A carboxylase (ACC) inhibitor herbicides. The mean polymorphic information content (PIC) and gene diversity across the entire inbreds were 0.35 and 0.46, respectively with non-herbicide resistant inbreds harboring more diversity than the herbicide resistant ones. The population structure analysis clustered the inbred lines into three major subgroups according to pedigree and fertility-reaction with the maintainer lines (B-lines) distinctly forming a separate cluster. Analysis of molecular variance (AMOVA) revealed more variation within subgroups than among subgroups. Substantial linkage disequilibrium (LD) was detected between the markers in the population with marked variation between chromosomes. This information may facilitate the use of the inbreds in sorghum breeding programs and provide perspectives for optimizing marker density for gene mapping and marker-assisted breeding. The second experiment, based on 102 F1 hybrids developed by intercrossing closely and distantly related inbreds, was conducted to investigate the relationship of genetic distance between parents with hybrid vigor or heterosis. The F1 hybrids alongside their parents were evaluated at two environments in a randomized complete block design with three replications. The results show that correlations of genetic distance between parents with hybrid performance and heterosis were variable and dependent on the trait. Though most were statistically non-significant and not strong to be used as predictor for heterosis, the results tend to show that certain level of genetic distance between parents is needed to capture maximum heterosis and hybrid performance. The objective of the third research study was to determine whether traits measured on parents can be used to predict hybrid performance in sorghum and to assess the combining ability of selected inbreds. Forty-six parental inbred lines and 75 F1 hybrids generated from intercrossing the inbreds were evaluated in four environments in a randomized complete block design with three replications. The average performance of the parents (mid-parent) was significantly correlated with hybrid performance for thousand kernel weight, days to flowering and plant height. Significant general (GCA) and specific (SCA) combining abilities were observed for most traits, with highly significant GCA effects observed for most traits as compared to SCA indicating that additive genetic effects are more important in affecting the inheritance of the traits measured. Results show that studying parental inbred line performance could generate important information for predicting hybrid performance in sorghum. The fourth experiment was aimed at assessing the efficacy of genomic prediction of hybrid performance in sorghum. Genomic prediction was performed with five-fold cross-validation procedure on 204 F1 hybrids developed using 102 inbred lines. A total of 66,265 SNP markers generated using genotyping-by-sequencing were used in this study. Results showed that increasing training population size increased prediction accuracies for all traits with the effect being different for different traits. Also, considering additive effects alone versus additive and dominance effects in the model showed similar trend of prediction accuracy but the full model (considering both additive and dominance effects of the markers) provided better prediction at least for some of the traits. The results suggest that genomic prediction could become an effective tool for predicting the performance of untested sorghum hybrids thus adding efficiency to hybrid selection.

Download or read book Heterosis and Combining Ability Studies in Forage Sorghum Sorghum Bicolor L Moench written by Rajveer Singh Khatri and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heterosis and Its Relation to Parental Genetic Divergence in Sorghum Sorghum Bicolor L Moench written by PAWAR SHANKARA RAO V and published by . This book was released on 2000 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heterosis and Combining Ability Studies in Sorghum Sorghum Bicolor L Moench written by LOKAPUR RAVINDRA G and published by . This book was released on 1997 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heterosis and Combining Ability Studies in Grain Sorghum Sorghum Bicolor L Moench written by Harer P N. and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heterosis and Combining Ability Studies for Forage Traits in Sorghum Sorghum Bicolor L Moench from Line X Tester Analysis written by Jadhav A S. and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Studies on Heterosis and Combining Ability in Some Induced Photoinsensitive Mutants of Indian Sorghums Sorghum Bicolor L Moench written by M. R. Sreenivasulu and published by . This book was released on 1992 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Studies on Genetic Divergence and Character Association in Sorghum Sorghum Bicolor L Moench for Forage Yield and Quality Parameter written by R. Satyam Babu and published by . This book was released on 1995 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Studies on Standardheterosis Grain and Fodder Quality of Certain New Varieties and Hybrids of Sorghum Sorghum Bicolor L Moench written by K. Keshavulu and published by . This book was released on 1996 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heterosis Combining Ability and Breeding Potential Studies for Grain Yield and Yield Components in Guinea Sorghums Sorghum Bicolor L Moench written by Aboubacar Toure and published by . This book was released on 1992 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heterosis and Stability Studies in Rabi Sorghum Sorghum Bicolor L Moench written by KARTHIK T and published by . This book was released on 2004 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: