PJB-2021-35
Evaluating the effectiveness of boron on the growth of cotton (Gossypium hirsutum L.) under saline conditions
Muhammad Ali Abbas, Ghulam Sarwar, Sabir Hussain Shah, Sher Muhammad, Ayesha Zafar, Muhammad Zeeshan Manzoor, Ghulam Murtaza and Muhammad Latif
Abstract
The present experiment was designed to monitor growth and yield responses of a cotton genotype after applying salinity and boron stresses either alone or in combination and subsequent estimation of sodium-boron interaction in the cotton genotype. Treatments were set under complete randomized design (CRD) with 3 replications. Results revealed that 37.00 number of flowers/plant were found in control which was decreased by 25.24 and 34.24% by salinity-1 (75 mM NaCl) and salinity-2 (150 mM NaCl), respectively compared to control. Number of flowers/plant was improved by 46.92% by the addition of 75 mM NaCl + 12 mM B (Boron) compared with control. Number of leaves/plant of 75.66% was found in control treatment which was decreased by 16.29 and 29.07% by salinity-1 (75 mM NaCl) and salinity-2 (150 mM NaCl), respectively compared with control. Number of leaves/plants was improved by 25.08% by the application of 75 mM NaCl + 12 mM B compared with control. Similarly, plant height, lint weight, fresh root weight, dry root weight, root length and shoot length were improved after boron applications. Concentration of Na+ (Sodium) ion in soil analyzed for control was 4.1 meq. L-1 that increased to the level of 4.40 and 4.89 meq. L-1 by salinity-1 (75 mM NaCl) and salinity-2 (150 mM NaCl), respectively. Under boron applications, the lowest Na+ in soil were recorded 3.91 meq. L-1 for 12 mM B and 4.26 meq. L-1 for 6 mM B respectively. Similarly, the lowest Cl- (Chloride) ion in soil was recorded under boron application, while boron contents in soil was reduced under both salinity stresses
To Cite this article:
Abbas, M.A., G. Sarwar, S.H. Shah, S. Muhammad, A. Zafar, M.Z. Manzoor, G. Murtaza and M. Latif. 2022. Evaluating the effectiveness of boron on the growth of cotton (Gossypium hirsutum L.) under saline conditions. Pak. J. Bot., 54(5): DOI: http://dx.doi.org/10.30848/PJB2022-5(24)
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