Genetic Diversity and Heritability Characters Associated in Sweet Sorghum [Sorghum bicolor (L.) Moench]

摘要

Sweet sorghum [Sorghum bicolor (L.) Moench] contain high sugar-rich stalks like sugarcane. A total of 200 sweet sorghum germplasm accessions were used in the crossing programme to develop high brix and high biomass sweet sorghum varieties. Thirty-nine F9s with high brix and high biomass were evaluated for 11 agro-morphological and seven biochemical traits during kharif seasons of 2008-2010. Analysis of variance showed significant differences among genotypes for all traits studied. Large variations was found for traits viz., field brix (4-22 %), stem fresh weight/5 plants) (1,667-6,250 g) and stem dry weigh/5 plants (833-5,000 g), juice brix (12.4-24%), juice volume/5 plants (142-1,667 ml), total soluble sugars (9.35-20.82 %), reduced sugars (0.11-3.74 %) and juice purity (49.33-80.72 %). It is important to identify superior genotypes for ethanol production in terms of per cent juice brix, juice volume, total soluble sugars, and high biomass.