Evaluation of tembotrione against weeds in maize (Zea mays L.) under mid hill conditions of Himachal Pradesh
Author(s):
S.S. Rana, Dinesh Badiyala, Neelam Sharma, Suresh Kumar
Keywords:
Tembotrione, atrazine, pendimethalin, yield attributes, weeds, yield, maize
Abstract
Tembotrione at 125 & 150 g/ha with surfactant applied on 20 days after sowing (DAS) and at 100, 125 & 150 g/ha without surfactant applied on 20 & 30 DAS was evaluated along with standard weed control practices viz. atrazine 1000 g/ha (pre) fb atrazine 750 g/ha (post); atrazine 1000 + pendimethalin 1000 g/ha (pre) and manual weeding thrice (20, 40 & 60 DAS) on a silty clay loam soil at Palampur during 2014 and 2015 for post emergent weed control in maize. Tembotrione at 125 and 150 g/ha with (20 DAS) and without surfactant (30 DAS) was quite effective in reducing the count of Echinochloa colona and Commelina benghalensis upto the harvest of maize. Irrespective of dose and time of application tembotrione effectively reduced the count of Polygonum alatum. Tembotrione has been found a better alternative to atrazine fb atrazine for the control of Ageratum. Tembotrione at 125 & 150 g/ha +surfactant (20 DAS) produced significantly higher yield attributes and yield of maize and was followed by tembotrione at 150 g/ha (30 DAS), tembotrione at 125 g/ha (30 DAS), tembotrione at 150 g/ha (20 DAS). Grain yield of maize was positively associated with plant height, rows/cob, grains/cob and cobs/plant and negatively associated with count of Echinochloa, Commelina, Polygonum, Ageratum and the combined of these. Uninterrupted growth of weeds reduced the grain yield of maize by 63.5%.
Article Details
Unique Paper ID: 147050

Publication Volume & Issue: Volume 5, Issue 3

Page(s): 220 - 226
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