Inheritance of growth and agronomic traits in sugarcane hybrid population K93-219 x KpK98-40
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Abstract
Sugarcane breeding programs typically commence by evaluating a large number of seedling derived from true seed. Information on inheritance of desirable traits is important to achievement in selection the superior hybrid genotypes. The objective of this study was to evaluate the segregating distribution and heterosis of growth and agronomics traits in sugarcane hybrid cross, K93-219 x KpK98-40. Field experiment was conducted at Mitr Phol Sugar Group (Mitr Phu Veing), Khon Kaen Province. The biometrical observations on the growth characters viz., stalk height, number of tiller per stool, stalk number per stool and stalk diameter (cm.) and total soluble solid (brix°). The agronomic traits, lodging score and free-trash score was recorded. The highest segregating distribution was found in yield components (stalk height, tiller number per stool and stalk number per stool), and suitable traits for harvesting (lodging and free-trash score). Stalk number per stool and brixº have been high mid-parents heterosis. Overall, the findings suggest for development of new varieties with improved yield and quality traits.
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