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Journal of Entomology
  Year: 2004 | Volume: 1 | Issue: 1 | Page No.: 12-16
DOI: 10.3923/je.2004.12.16
 
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Effect of Application of a Plant Growth Regulator and Micronutrients on Insect Pest Infestation and Yield Components of Cotton

G.H. Abro , T.S. Syed , M.A. Unar and M.S. Zhang

Abstract:
Studies were carried out on the effect of hormone and micronutrients on plant growth and insect infestation of cotton crop under field conditions. Cotton (TH-3/83) was sown in randomized block design with four replications on May 15, 2001. Planofix (plant growth regulator) and two micronutrients (Bonus Non-chelated and Bonus chelated) were applied on August 20, 2001 and two subsequent applications were made at weekly intervals. The results indicated that there was significant effect of application of hormone and micronutrients on plant height, number of fruiting bodies (bolls), volume of bolls and yield in comparison to control. There was no significant effect of application of hormone and micronutrients on multiplication of thrip, Scirtothrips dorsalis, Jassid, Amrasca devastans, Whitefly, Bemisia tabaci and percent infestation of bollworms. However, application of plant growth regulator and micronutrients significantly delayed the maturity of cotton.
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How to cite this article:

G.H. Abro , T.S. Syed , M.A. Unar and M.S. Zhang , 2004. Effect of Application of a Plant Growth Regulator and Micronutrients on Insect Pest Infestation and Yield Components of Cotton. Journal of Entomology, 1: 12-16.

DOI: 10.3923/je.2004.12.16

URL: https://scialert.net/abstract/?doi=je.2004.12.16

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