6 research outputs found
PERFORMANCE OF LATE SOWN WHEAT IN RESPONSE TO FOLIAR APPLICATION OF Moringa oleifera Lam. LEAF EXTRACT
A rise in temperature during early spring inducing early maturity is a
key yield-reducing factor in late sown wheat ( Triticum aestivum L.).
Moringa oleifera Lam. leaves are rich in zeatin, a cytokinin that
plays a role in delaying leaf senescence, in addition to other
growth-enhancing compounds such as ascorbates, phenolics, and minerals.
The objective of this study was to optimize dose and optimum growth
stage for foliar-applied moringa leaf extract (MLE) and its role in
delaying leaf senescence in late sown wheat. The wheat crop was sown on
16 December 2008; MLE (diluted 30 times) was applied at different
growth stages from tillering to heading and heading alone and distilled
water was sprayed as a control. All the MLE treatment results were
better than the control. However, an increase of 10.73%, 6.00%, 10.70%,
and 4.00% was evident in 1000 grain weight, biological yield, grain
yield, and harvest index, respectively, with MLE spray at tillering +
jointing + booting + heading. The MLE spray used only at heading gave
6.84%, 3.17%, 6.80%, and 3.51% more than the control 1000 grain weight,
biological yield, grain yield, and harvest index, respectively. The MLE
extended seasonal leaf area duration (Seasonal LAD) by 9.22 and 6.45 d
over the control when applied at all growth stages and a single spray
at heading, respectively. We conclude that it is possible that the
presence of growth-promoting substances in MLE foliar spray can delay
crop maturity and extend seasonal LAD and the grain-filling period,
thereby leading to greater seed and biological yields in late sown
wheat