Study of physiological growth indices of mustard in chickpea (Cicer arietinum) + mustard (Brassica juncea) intercropping system under different weed management practices

A field experiment was carried out during rabi seasons of 2009–10 and 2010–11 at the Research Farm of Sher-e-Kashmir University of Agricultural Sciences and Technology at Chatha, Jammu to assess the physiological growth indices in chickpea+mustard intercropping system under different weed management practices. The significant superiority of replacement series treatment for leaf area index of mustard over additive series treatment was noticed. The sole crop of mustard was followed by replacement and additive series treatments in recording highest dry matter, crop growth rate and net assimilation rate values. Sole stand of mustard recorded numerically higher relative growth rate (RGR) followed by replacement and additive series treatments. Weed free treatment recorded numerically highest crop growth rate (CGR) and net assimilation rate (NAR) of mustard at all the stages of observation. As regards yield, sole stand recorded significantly higher values of grain and was followed by additive and replacement series which in turn were differed significantly from one another in chickpea+mustard intercropping system.