EFFECT OF PLANT GROWTH REGULATORS ON GROWTH, YIELD AND VASE LIFE OF AFRICAN MARIGOLD (Tagetes erecta) Cv. 'Lemon Yellow'
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Date
2000
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AAU, Anand
Abstract
The effect of plant growth regulators on growth, yield and vase life of African marigold (Tagetes erecta) Cv. 'Lemon Yellow' was studied at the College Nursery, B.A. College of Agriculture, Gujarat Agricultural University, Anand Campus, Anand during the winter season of 1999-2000. The treatments comprised of three different concentrations of GA3 (50, 100 and 150 ppm), CCC (250, 500 and 750 ppm) and NAA (100, 200 and 300 ppm) including control (water spray). The experiment was laid out in Randomized Block Design and replicated thrice. The results revealed that GA3 150 ppm produced significantly maximum plant height and number of branches followed by GA3 100 ppm. Significantly earliest flowering was observed with GA3 150 ppm followed by GA3 100 ppm while it was delayed significantly in case of CCC 750 ppm. Treatment of GA3 150 ppm produced maximum flowers per plant, plot and hectare followed by GA3 100 ppm and significantly highest yield was also recorded with GA3 150 ppm followed by GA3 100 ppm per plant, plot and hectare. From the vase life point of view, it could be inferred that CCC 500 ppm proved to be the best in improving the vase life of African marigold (T. erecta) Cv. 'Lemon Yellow'.
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HORTICULTURE, AGRICULTURE, A STUDY