Abdel Aal, M., El-Gabiery, A., EL-Shazly, M. (2021). Physiological Studies to Induce Flowering and Fix Boll Setting in Cotton Plant. Journal of Plant Production, 12(9), 1031-1038. doi: 10.21608/jpp.2021.202847
M. H. Abdel Aal; A. E. El-Gabiery; M. W. M. EL-Shazly. "Physiological Studies to Induce Flowering and Fix Boll Setting in Cotton Plant". Journal of Plant Production, 12, 9, 2021, 1031-1038. doi: 10.21608/jpp.2021.202847
Abdel Aal, M., El-Gabiery, A., EL-Shazly, M. (2021). 'Physiological Studies to Induce Flowering and Fix Boll Setting in Cotton Plant', Journal of Plant Production, 12(9), pp. 1031-1038. doi: 10.21608/jpp.2021.202847
Abdel Aal, M., El-Gabiery, A., EL-Shazly, M. Physiological Studies to Induce Flowering and Fix Boll Setting in Cotton Plant. Journal of Plant Production, 2021; 12(9): 1031-1038. doi: 10.21608/jpp.2021.202847
Physiological Studies to Induce Flowering and Fix Boll Setting in Cotton Plant
Cotton Physiology Department, Cotton Research Institute, Agricultural Research Center, Giza, Egypt.
Abstract
Two field experiments were carried out at El-Gemmeiza Agricultural Research Station, El-Gharbia Governorate, Egypt during 2019 and 2020 seasons, to find out the proper time of foliar application with Idai Top Flower(ITF)(9.50% P2O5 +3.50% Mo).It was applied at the rate of 2 cm3/L once(at squaring start or at the beginning of flowering or at the peak of flowering) and twice (at squaring start and the beginning of flowering or at the beginning of flowering and the peak of flowering)compared to the control treatment The effect of these treatments on boll retention and productivity of cotton cultivar Giza 86 was also evaluated. The layout of the experiment was a randomized complete blocks design with 4 replicates in both seasons.The obtained results revealed that foliar feeding with ITF twice(at squaring start and the beginning of flowering or at the beginning of flowering and the peak of flowering) led to a significant increase in growth parameters, boll setting and earliness attributes(except boll shedding% which decreased), the open bolls number plant-1 and yield of seed cotton feddan-1 in both seasons as well as boll weight,seed index and lint% in the second season.The lowest values of these traits in consideration were resulted from the control treatment with a significant increase in boll shedding percentage. Application of Idai Top Flower(ITF)at a concentration of 2 cm3/liter twice(at squaring start and the beginning of flowering)or(at the beginning of flowering and the peak of flowering)was recommended to increase cotton boll retention and productivity under conditions similar to El-Gemmeiza location.
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