Effect of different weed management practices on growth and yield of sesame
1Radhakrishnan. M., 2P. Anandan, 3A. Sundari and 4J. Raja
1,2,3Department of Agronomy, 4Department of Plant Pathology, Faculty of Agriculture Annamalai University Annamalainagar-608 002 (India) Mail id : radharocksr5@gmail.com
ABSTRACT
The field experiment was conducted in farmer ’s field, Pattagapatti, Dharmapuri district of Tamil Nadu, India during Summer season, 2020 in order to evaluate the effect of different weed management practices on growth and yield of sesame. The experiment was laid out with eight treatments with three replications. The treatments consist with pre and post emergence application of herbicide along with hand weeding twice and weedy check. Pre emergence herbicides viz., Oxadiargyl, Oxyfluorfen, Imazethapyr and post emergence application of propaquizafop and quizalofop ethyl. Among the different treatments tested, the least weed biomass were recorded in weed free check, weed control efficiency of 100 %, weed control index of 100% with highest plant height (136 cm), dry matter production (3576 kg ha-1), number of capsules plant-1 (88.42) seed yield (1252 kg ha-1). It was followed by twice hand weeding with the value of 61 g with weed control efficiency of 51.60%, weed control index of 49.80%, plant height (127 cm), dry matter production (3354 kg ha-1), number of capsules plant-1 (81) and seed yield (1190 kg ha-1). Next in order of ranking is pre emergence application of Imazethapyr 0.015 kg ha-1 at 3 DAS with weed biomass of 72 g with weed control efficiency of 42.66%, weed control index of 40.73%, plant height (118 cm), dry matter production (3133 kg ha-1), number of capsules plant-1 (75) and seed yield (1094 kg ha-1).