Description

The range of variation was much pronounced in most of the characters and real differences existed among the different varieties. The root number per plant showed the highest phenotypic, genotypic and environmental variance. The highest heritability was found from root length and the lowest was reported from root number. The bulb yield of onion was strongly and positively correlated with most of the characters studied, except with dry matter content of bulb. Pusa Red variety, fertilizer dose at N - 120, P - 130, and K - 160 kg/ha and early planting significantly increased bulb yield.

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