Vol. 6, Issue 4 (2018)
Exogenous application of glycine betaine and potassium nitrate for improving growth and yield of rice (Oryza sativa L.) under drought at flowering stage
Author(s): Nitish Sharma, AK Singh, Nikita Nehal, Krishna Kumar Mishra and Mayanker Singh
Abstract: This investigation was carried out in the rainout shelter at Student Instructional Farm (SIF), Narendra Deva University of Agriculture & Technology, Kumarganj, Faizabad (U.P.) during Kharif (wet season) 2015 and 2016 to find out response of glycine betaine and potassium nitrate in improving growth and yield of rice under drought at flowering stage. Experiments were laid out in randomized block design with 3 replications, one variety i.e. Swarna Sub 1 and nine foliar treatments. Rice plants were exposed to drought at 60 DAT for 15 days by holding irrigation during drought treatment. During drought treatment soil moisture tension of the field was ranged from 60-80 kPa. Foliar application of different concentrations of glycine betaine (100 & 200 ppm) applied at 60 DAT and different concentrations of KNO3 (2 & 3%) applied at 30 DAT & at 60 DAT as well as their combination was given. Data regarding various growth and yield parameters of rice were recorded using standard procedures. The data so collected were analyzed statistically by using the Fisher’s analysis of variance technique and LSD at 5% probability was used to compare the differences among treatment. Drought at flowering stage hampered the growth and yield of rice but exogenous application of glycine betaine and potassium nitrate will helps to ameliorate the detrimental effect of drought. All the foliar treatment improved the growth and yield of rice however maximum improvement in growth and yield can be observed when glycine betaine and potassium nitrate were applied in combination.
Pages: 1102-1106 | 437 Views 57 Downloads
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How to cite this article:
Nitish Sharma, AK Singh, Nikita Nehal, Krishna Kumar Mishra, Mayanker Singh. Exogenous application of glycine betaine and potassium nitrate for improving growth and yield of rice (Oryza sativa L.) under drought at flowering stage. Int J Chem Stud 2018;6(4):1102-1106.
