<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "Phenotypic assessment of sorghum (Sorghum bicolor L. Moench)\r\ngermplasm reference set for yield and related traits\r\nunder post flowering drought conditions\r\n"^^ . "Sorghum reference set collection consisting of 384 accessions of five basic races,\r\n10 intermediate races and five wild sub species was evaluated during 2008-09 (E1),\r\n2009-10 (E2) post rainy season at ICRISAT, Patancheru, Andhra Pradesh and during\r\n2009-10 at UAS, Dharwad (E3- Irrigated condition and E4 – Un-irrigated condition) and\r\nRARS, Bijapur (E5- Un-irrigated condition). Data on seven qualitative and 11\r\nquantitative traits were recorded to estimate the phenotypic diversity under post\r\nflowering drought conditions and to identify the drought tolerant accessions.\r\nThe qualitative traits, white mid rib, pigmented plant, black and purple color\r\nglume, one fourth glume covered, white, purple, and brown colored seeds occurred in\r\nhigh frequencies in the sorghum reference set. These traits are useful markers since they\r\nare associated with economically important traits such as increased fodder quality,\r\nresistance to grain mould, preference in food and beverage industries.\r\nVariance due to genotypes (σ2g) and genotype X environment (σ2ge) interactions\r\nwere significant for all the 11 quantitative characters and variance due to genotype X\r\ndrought interaction was significant for panicle exerstion, panicle length, panicle width\r\nand grain yield. The seven flowering groups differed significantly for days to 50 per\r\ncent flowering and plant height. The basic races and intermediate races as group differed\r\nsignificantly from the wilds for panicle weight, grain yield and 100 seed weight. Grain\r\nyield of entire reference set had significant positive correlation with panicle weight, 100\r\nseed weight but had negative correlation with days to 50 per cent flowering, plant height\r\nand basal tillers in all the environments. Principal component analysis in entire reference\r\nshowed that, nine characters in E1, E2 and its pooled and eight characters in E3, E4, E5\r\nand its pooled were important in explaining the variation. Shannon-Weaver diversity\r\n(H') index was high for plant height, 100 seed weight, grain yield, panicle weight,\r\nSPAD1 and SPAD2 in entire reference set , in all the flowering groups, basic races,\r\nintermediate races and wilds. Average phenotypic diversity index was similar in all the\r\nenvironments. On the basis of phenotypic dissimilarity between pair of accessions, ten\r\npairs of most diverse accessions under drought conditions were identified. These\r\naccessions could be used in breeding programs for selecting superior lines in segregating\r\npopulation and for the development of mapping population. The hierarchical cluster\r\nanalysis grouped five basic races, ten intermediate races and five wild sub species into\r\nthree clusters in E1, E2, E4 and pooled over E1 and E2, two clusters in E3, five clusters\r\nin E5 and four cluster in pooled over E3, E4 and E5.\r\nBased on drought tolerance indices such as STI, MP, GMP, SSI, TOL and DTE a\r\ntotal of 65 drought tolerant accessions were indentified representing the entire reference\r\nset and seven flowering groups. Twenty nine accessions based on E1, E2 pooled and 22\r\naccessions based on E3, E4 and E5 pooled were identified for high SCMR. Accessions\r\nidentified based on drought tolerance indices and with high SCMR were predominantly\r\nfrom the race caudatum which was early flowering, had shortest plant height, high\r\npanicle weight and grain yield. In addition to this, best twenty accessions were identified\r\nfor each of the traits, days to 50 per cent flowering, plant height, panicle length, 100 seed\r\nweight, panicle weight and high grain yield. These diverse trait specific promising\r\naccessions have the potential for their utilization in breeding programs for developing\r\nimproved sorghum cultivars with a broad genetic base. The information on phenotypic\r\ndiversity and trait specific accessions provided valuable baseline knowledge for further\r\nprogress on the selection and breeding for drought tolerance in sorghum."^^ . "2011" . . . . "Tamil Nadu Agricultural University"^^ . . . "Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University"^^ . . . . . . . . "K"^^ . "Seetharam"^^ . "K Seetharam"^^ . . . . . . "Phenotypic assessment of sorghum (Sorghum bicolor L. Moench)\r\ngermplasm reference set for yield and related traits\r\nunder post flowering drought conditions\r\n (PDF)"^^ . . . . . . . . . "Phenotypic assessment of sorghum (Sorghum bicolor L. Moench)\r\ngermplasm reference set for yield and related traits\r\nunder post flowering drought conditions\r\n (Image (JPEG))"^^ . . . . . . "Phenotypic assessment of sorghum (Sorghum bicolor L. Moench)\r\ngermplasm reference set for yield and related traits\r\nunder post flowering drought conditions\r\n (Indexer Terms)"^^ . . . . . "HTML Summary of #3954 \n\nPhenotypic assessment of sorghum (Sorghum bicolor L. Moench) \ngermplasm reference set for yield and related traits \nunder post flowering drought conditions \n\n\n" . "text/html" . . . "Sorghum"@en . .