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Pakistan Journal of Biological Sciences

Year: 2000 | Volume: 3 | Issue: 8 | Page No.: 1263-1266
DOI: 10.3923/pjbs.2000.1263.1266
Effect of Growth Hormones i.e., GA3, IAA and Kinetin on 1. Length and Diameter of Shoot, 2. Early Initiation of Cambium and Maturation of Metaxylem Elements in Cicer arietinum L.
Najma Yaqoob Chaudhry and Aisha Saleem Khan

Abstract: Effects of growth regulators i.e., GA3, IAA and Kinetin were studied on the shoot of Cicer arietinum L. after 45 and 60 days of treatment and was compared with control as well as among themselves. The following concentrations of growth hormones were applied individually 100 ppm GA3, 100 ppm IAA and 20 ppm Kinetin. In combinations the concentrations used were 100 ppm GA3+100 ppm IAA, 100 ppm GA3+20 ppm Kinetin, 100 ppm IAA+20 ppm Kinetin and 100 ppm GA3+100 ppm IAA+20 ppm Kinetin. Applied GA3 increased the length of shoot significantly but in the internal morphology GA3 revealed no positive effect in cambium enhancement and maturation of metaxylem elements. Applied IAA and Kinetin more or less promoted expansion in diameter but decreased the extension growth. IAA and Kinetin promoted initiation of cambium and maturity of metaxylem elements. In the mixed doses of GA3+IAA and GA3+Kinetin, increase in length as well as in the diameter was observed. The diameter of cambial region also revealed some expansion. In GA3+IAA+Kinetin no definite pattern was observed with regard to length, diameter and cambium.

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How to cite this article
Najma Yaqoob Chaudhry and Aisha Saleem Khan, 2000. Effect of Growth Hormones i.e., GA3, IAA and Kinetin on 1. Length and Diameter of Shoot, 2. Early Initiation of Cambium and Maturation of Metaxylem Elements in Cicer arietinum L.. Pakistan Journal of Biological Sciences, 3: 1263-1266.

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