Vol. 7, Issue 3 (2019)
To studies about use of different fungicides against leaf and neck blast disease of rice (Oryza sativa L.) under field conditions
Author(s): Akhilesh Jagre, RS Negi, Himanshu Shekhar Singh, Ramesh Amule and Ajay Chourasiya
Abstract: Rice (Oryza sativa L.) is an important Kharif cereal crop of Satna district. The productivity of Rice is greatly reduced due to heavy infestation of blast disease at vegetative growth stage of crop. Blast Disease is a serious disease of Rice that reduces the yield of Rice by 15-20%. Rice blast caused by Pyricularia grisea Sacc. is the important disease of rice and different fungicides against this disease were evaluated in Deendayal Research institute Krishi Vigyan Kendra, Satna M.P. A susceptible Rice cultivar ‘MTU 1010’ was planted in randomized block design (RBD) and fungicides viz., Pyraclostrobin 10% CS (0.25%), Tebuconazole 25.9% EC @ ( 0.2%), Hexaconazole 5% SC (0.2%) and Hexaconazole 4% + Zineb 68% WP (0.2%) were sprayed thrice at weekly interval starting from the booting stage. All these fungicides were found to be effective in controlling leaf and neck blast disease as compare to control. Among them, Pyraclostrobin 10% CS (0.25%) was found to be the most effective with least leaf blast disease severity (6.23%), neck blast incidence (8.97%), and highest percentage disease control (87.08% and 79.62% in leaf blast and neck blast, respectively) and higher grain yield (4.23 t/ha), followed by Tebuconazole 25.9% EC @ ( 0.2%), Hexaconazole 5% SC (0.2%) and Hexaconazole 4% + Zineb 68% WP (0.2%) fungicide could be used to control rice blast at weekly interval starting from the booting stage for three times.
Pages: 4950-4953 | 377 Views 123 Downloads
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How to cite this article:
Akhilesh Jagre, RS Negi, Himanshu Shekhar Singh, Ramesh Amule, Ajay Chourasiya. To studies about use of different fungicides against leaf and neck blast disease of rice (Oryza sativa L.) under field conditions. Int J Chem Stud 2019;7(3):4950-4953.