Effect of Seaweed Bioformulations In Relieving Biotic and Abiotic Stress in Rice

摘要

A Field experiment was conducted during kharif 2016-17 to study the effect of tropical red seaweed (Kappaphycus alvarezii) bioformulations (LBS 6 and LBD 1 in relieving the fungicidal stress and imparting the resistance to blast disease) in rice. Foliar application of LBS6 @ 1 ml/1 was found to be statistically superior in improving growth and yield parameters viz., plant height (74.05 cm), total number of tillers (23.80 average), number ofpanicles (23.50 average), straw (5.91 kg/plot) and grain weight (6.05 kg/plot) which was followed by carbendazim 50 %WP + LBS6. There was 49.50 per cent straw and 51.76 per cent grain yield increase over control in LBS 6 @ 1ml/1 treated plot. While LBD 1 @ 2 ml/1 was found to be effective in suppressing the disease by 40.46 per cent which was on par with the standard check tricychlozole (35.68 %).