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Chemical weed management effects on productivity and profitability of gladiolus (Gladiolus hybridus) in north-western Indo-Gangetic Plains

Indian Agricultural Research Journals

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Title Chemical weed management effects on productivity and profitability of gladiolus (Gladiolus hybridus) in north-western Indo-Gangetic Plains
 
Creator JANKIRAM, T
SWAROOP, KISHAN
DAS, T K
 
Subject Corm yield, Cut-flower, Gladiolus, Tank-mix herbicide, Weed
 
Description A field experiment, involving ten weed control treatments laid out in a randomized complete block design with three replications, was undertaken at the Indian Agricultural Research Institute, New Delhi during the winter seasons, 2011-12 and 2012-13. The objective was to evaluate the effects of different combinations of herbicides, particularly pre-emergence tank-mix herbicides applications on weeds, and flowering, corm yield and benefit-cost economics of gladiolus (Gladiolus hybridus Hort.). It was observed that all herbicidal treatments resulted in significantly lower density of monocot and dicot weeds, and total weed dry weight compared to weedy check, which had the highest twoyear mean density of monocot (165/m2) and dicot (364/m2) weeds and total weed dry weight (171 g/m2). Among herbicide treatments, atrazine 1.0 kg/ha pre-emergence followed by rice residue @ 5 tonnes/ha at 2 days after atrazine application caused the greatest reduction in density and dry weight of weeds. All herbicidal treatments, except butachlor 1.0 kg/ha pre-emergence, were equally effective as this treatment against weeds. The herbicides and their doses adopted in this study did not pose any phytotoxicity to gladiolus plants. The tank-mix pre-emergence applications were usually more effective than the single herbicide application. The tank-mix pre-emergence application of pendimethalin 0.75 kg/ha + metribuzin 0.3 kg/ha resulted in significantly greater two-year mean gladiolus plant height (116 cm), cut-flower yield (172 500 spikes/ha), corm yield (3.82 tonnes/ha) and net returns (Rupees243 100/ha) compared to weedy check and most other treatments, and was most remunerative.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2014-08-11
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/43082
 
Source The Indian Journal of Agricultural Sciences; Vol 84, No 8 (2014)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/43082/19131
 
Rights Copyright (c) 2014 The Indian Journal of Agricultural Sciences