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- Title
Morphological, Growth and Yield Response of Cotton to Exogenous Application of Natural Growth Promoter and Synthetic Growth Retardant.
- Authors
Yasmeen, Azra; Arif, Muhammad; Hussain, Nazim; Malik, Waqas; Qadir, Ihsan
- Abstract
In current study, field experiments were conducted to optimize the effects of foliar application of natural plant growth promoter i.e., moringa leaf extract (MLE) and synthetic growth retardant mepiquate chloride (MC) alone and in combined form. The time of applications were beginning of bloom, 45 and 90 days after blooming. Both the conventional (CIM 573) and Bt cotton (CIM 598) cultivars were used. The experiment was performed at agronomic research area, Bahauddin Zakariya University, Multan and Usmania Agricultural Farm, Shujabad during 2012. The combined application of MLE and MC at 45 days after blooming enhanced absolute growth rate, number of squares per plant in Bt, while specific leaf weight in non Bt cultivar. However, same treatment when applied at 90 days after blooming improved the number of bolls per plant, seed cotton yield, cotton seed yield, lint yield and lint index in Bt cotton. Application of MC alone reduced the plant growth without significantly increasing the yield. The natural growth promoter MLE being a rich source of macro, micro nutrients and zeatin enhanced growth and yield attributes not only when applied alone but also in combination with synthetic growth retardant MC.
- Publication
International Journal of Agriculture & Biology, 2016, Vol 18, Issue 6, p1109
- ISSN
1560-8530
- Publication type
Academic Journal
- DOI
10.17957/IJAB/15.0213