Restricted Selection Indices in Sugarcane (Saccharum Officinarum L.)
Journal Title: International Journal of Agricultural Science and Research (IJASR) - Year 2017, Vol 7, Issue 4
Abstract
An investigation was conducted at the Sugarcane Research Station, Vuyyuru, Krishna District, Andhra Pradesh, India to carry out Restricted Selection indices among twelve component characters of sugarcane viz., Numbers of Germinants at 35 DAP, Stalk Population at 240 DAP, Number of Millable canes, Length of millable cane (cm), Diameter of millable cane (cm), Single cane weight (kg), Cane yield (kg/plot), CCS yield (kg/plot), Brix per cent, Per cent sucrose, purity per cent ,and CCS per cent.The genetic advance of all the twelve characters under study was estimated by assigning equal economic weights to all characters. Single case restricted selection was carried out by restricting the selection for only eleven out of twelve characters without affecting any change in the twelveth character. In all such twelve possible restriction selections, the character brix per cent recorded highest estimate of genetic advance in all cases except when sucrose per cent, purity per cent and cane yield are not considered in their respective single case restriction selection indices. In such case, single cane weight recorded highest estimate of genetic advance.
Authors and Affiliations
G. Vinay Kumar, V. Satyanarayana Rao
Keywords
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