Relationships between main tiller and single plant yield performance of rice

I. Alias

Abstract

One of the factors that affect the efficiency of single plants selection for yield is the difficulty in making visual estimates due to variability within a hill. This study determined the relationships between the performance of main tillers and single plants for yield and its components. Main tiller performance was found to be positively correlated to single plants performance but only for the yield component characters. Consistent significant (P<0.01) correlation coefficients (r) between lines were detected for number of grains per panicle and l 000-grain weight. They also had relatively high heritability values. Performance of these characters on the main tillers was recommended to be used only as standard in single plants selection.

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