Sonu Sheoran1*, B.S. Beniwal1, R.P.S. Dalal1 and R.N. Sheokand2
1Department of Horticulture, College of Agriculture, CCS Haryana Agricultural University,
Hisar-125004 (Haryana), India
2Computer Section, College of Basic Sciences and Humanities, CCS Haryana Agricultural University, Hisar-125004 (Haryana), India
Email: 100nursheoran@gmail.com
Received-05.02.2022, Revised-20.02.2022, Accepted-27.02.2022
Abstract: A field experiment was conducted at Experimental Orchard of the Department of Horticulture, CCS Haryana Agricultural University, Hisar to study the seasonal influence of pinching and gibberellic acid on growth and yield parameters of African marigold. This experiment was laid out as a factorial randomized block design with three replications. It consists of two seasons viz., summer and winter with four levels of pinching viz., no pinching, pinching at 2 WAT (Weeks After Transplanting), pinching at 3 WAT, pinching at 4 WAT and four levels of gibberellic acid (GA3) viz., control, 150 ppm, 250 ppm, 350 ppm. Results revealed that foliar spray of 250 ppm GA3 on plants pinched at 2 WAT attained maximum fresh weight of plant in summer, whereas, the maximum flower yield/plantas well as flower yield/plot was recorded in winter. Application of 250 ppm GA3 with pinching at 2 WAT was found promising with respect to growth and yield of African marigold.
Keywords: African marigold, Gibberellic acid, Growth and yield, Pinching, Season
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