Vol. 6, Issue 6 (2018)
Management practices on cold injury in rice nurseries
Author(s): Dr. T Prabhakar Reddy, Dr. J Kamalakar, Dr. K Pavan Chandra Reddy, Smt Firdoz Sahana and Dr. D Vijay Lakshmi
Abstract: A field experiment was conducted during rabi 2014-15 and 2015-16 at Regional Sugarcane and Rice research Station, Rudrur to identify suitable management practices to overcome cold injury in rice nurseries using rice varieties, JGL 1798 and WGL 283. The experiment was conducted on a sandy clay loam soil of medium fertility with twelve treatmental combinations using fertilisers, organic manures, water management practices and covering with polythene sheet. The minimum ambient air temperature observed during nursery period was 9-18 oC. The results revealed that, the treatments which were covering with polythene sheet (T9, T10 and T11) and double the dose of P2O5 recorded highest root length, shoot length and seedling height at 15 and 30 days after sowing (DAS) in both the varieties. The seedling height of nursery without protection was less than the nursery protected with polythene sheet. With respect to organic manure applied treatments (T3, T4, T5 and T6), all the treatments were on par with each other and significantly higher over control. Among all the treatments, the treatment T11 (Double the dose of P2O5 + Cover the nursery beds with polythene sheet during night and remove in the morning, irrigate the nursery bed every day in the evening and let out the water in the morning) recorded highest root length, shoot length and seedling height at 15 and 30 DAS in both the varieties. At the time of transplanting, the seedling height of JGL 1798 variety was less than the Var: WGL 28.
Pages: 2034-2037 | 602 Views 276 Downloads
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How to cite this article:
Dr. T Prabhakar Reddy, Dr. J Kamalakar, Dr. K Pavan Chandra Reddy, Smt Firdoz Sahana, Dr. D Vijay Lakshmi. Management practices on cold injury in rice nurseries. Int J Chem Stud 2018;6(6):2034-2037.
