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Chilean Journal of Agricultural Research
Instituto de Investigaciones Agropecuarias, INIA
ISSN: 0718-5820
EISSN: 0718-5839
Vol. 72, No. 1, 2012, pp. 92-97
Bioline Code: cj12015
Full paper language: English
Document type: Research Article
Document available free of charge

Chilean Journal of Agricultural Research, Vol. 72, No. 1, 2012, pp. 92-97

 en PERFORMANCE OF LATE SOWN WHEAT IN RESPONSE TO FOLIAR APPLICATION OF Moringa oleifera check for this species in other resources Lam. LEAF EXTRACT
Yasmeen, Azra; Basra, Shahzad Maqsood Ahmed; Ahmad, Rashid & Wahid, Abdul

Abstract

A rise in temperature during early spring inducing early maturity is a key yield-reducing factor in late sown wheat ( Triticum aestivum check for this species in other resources L.). Moringa oleifera check for this species in other resources 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.

Keywords
Crop maturity, seasonal leaf area duration, late sowing, Moringa oleifera, wheat

 
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