COMPARATIVE STUDIES ON THE EFFICACY OF PRIMEXTRA GOLD IN CONTROLLING WEEDS OF MELON (Citrillus lanatus (Thunb.) Matsun & Nak.) AND CUCUMBER (Cucumis sativus L.)

Journal of Global Agriculture and Ecology

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Title COMPARATIVE STUDIES ON THE EFFICACY OF PRIMEXTRA GOLD IN CONTROLLING WEEDS OF MELON (Citrillus lanatus (Thunb.) Matsun & Nak.) AND CUCUMBER (Cucumis sativus L.)
 
Creator UGWUNNA, R. U.
OCHEKWU, E. B.
 
Description A pot experiment was conducted at the Centre for Ecological Studies of the University of Port Harcourt, Rivers state, Nigeria to evaluate the efficacy of Primextra Gold herbicide in controlling weeds in melon and cucumber and to assess the extent of injury to the crops. The experiment was laid out in a Randomized Completely Design with four replications. Seven doses of the herbicide – 0.0kg a.i/pot (D0), 0.25 kg a.i/pot (D1), 0.5 kg a.i/pot (D2), 0.75 kg a.i/pot (D3), 1.0 kg a.i/pot (D4), 1.25 kg a.i/pot (D5) and 1.5 kg a.i/pot (D6) – were applied preemergence. The dry weight, height of plant, number of green leaves, weed control efficiency, weed persistence index, crop phytotoxicity rating, weed destruction rating were used to determine the herbicide efficacy and crop injury. Results show that the melon recovered from the injury caused by lower doses (D1, D2, D3) while higher doses (D4, D5, D6) caused stand loss and complete crop destruction. The maximum average height (72 cm/pot), maximum number of leaves per pot (20), second maximum average dry weight (2.98g/pot) was observed at 28 DAT in melon treated with  D3. All the doses applied caused over 50% injury to the cucumber at all stages except at 7 DAT. The study also showed that Primextra Gold has a high Weed Control Efficiency (WCE %) and the Weed Persistence Index (WPI) of the weeds was low. Primextra Gold has a high weed destruction rating with the effect of the doses ranging from moderate to complete weed destruction.
 
Publisher International Knowledge Press
 
Date 2018-04-14
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier http://www.ikprress.org/index.php/JOGAE/article/view/2801
 
Source Journal of Global Agriculture and Ecology; 2018 - Volume 8 [Issue 1]; 16-24
2454-4205
 
Language eng
 
Relation http://www.ikprress.org/index.php/JOGAE/article/view/2801/2596
 
Rights Copyright (c) 2018 © Copyright International Knowledge Press. All rights reserved.
 

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