Abstract
The research endeavor to study the effect of nitrogen levels on yield and its attributing traits including both quantitative and qualitative characters was undertaken by utilizing eleven diverse commercial Indian mustard (Brassica juncea L.) cultivars and forty-five hybrids raised in alpha lattice design with two replications under three nitrogen levels viz., control; 75 kg Nitrogen /ha and 150 kg Nitrogen /ha. at the experimental farm of Lovely Professional University, Jalandhar Punjab. The traits viz., days to flower initiation, 50 percent flowering and maturity; plant height; number of secondary branches; test weight; seed yield; harvest index; oil content; seed & chaff nitrogen and Seed & Chaff Nitrogen uptake increased with the increase in nitrogen levels. On the other hand, the number of seeds per siliqua decreased with the increase in Nitrogen level. Some traits viz. Number of Primary branches & Siliqua on main shoot; length of main shoot and biological yield were found unaffected and didn’t depicted a clear trend at Nitrogen levels under study.
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