Efficacy of different herbicides for controlling narrow leave weeds in wheat -crop at different locations under adaptive research zone Sheikhupura

Muhammad Shahbaz

doi:10.19045/bspab.2017.60053

Abstract

Field experiment was conducted at three locations i.e. Adaptive Research Farm and two at farmers field during Rabi 2014-15 under ecological zone of Adaptive Research Farm Sheikhupura to study the efficacy of different post emergent herbicides against narrow leave weeds. The experiment was carried out in randomized complete block design (RCBD) with three repeats. Present study comprised of five treatments including control. The treatments comprised of Axial (penoxadin), Exit (clodinofop propargyl), Brake (fenoxaprop-p-ethyl), Proton (Isoproturon) and weedy check. The data were recorded on Plant height at maturity (cm), no. of grains per spike, spike length (cm), weed density m-2, 1000 grains weight (g), and grain yield (t ha-1). All treatments of herbicide significantly control the weeds causing significant reduction in weed mass and also improved the grain yield significantly in comparison with the check at three locations. Highest death of weeds (96.12, 97.09 and 98.95 %) and with maximum grain yield of 2846.7, 3320.0 and 3300.0 kg ha-1 which is 19.6, 39.6 and 39.9 % higher than weedy check were recorded in the penoxadin treated plot at three locations respectively. In the weedy check the weed density was 51, 126 and 127 weeds m-2 with grain yield 2380, 2376 and 2358 kg ha-1 at three locations respectively. Keywords: Wheat; Wheat weed density; Yield; Yield components; Herbicides http://dx.doi.org/10.19045/bspab.2017.60053

Highlights

Wheat (Triticum aestivum L.) is a major player in world food security and for a sustainable food supply
In Pakistan wheat crop grown on an area of 9250 thousand hectare and it contributed in total production was 25478 thousand ton during 2014-15 [1]
The smallest weed density m-2 was recorded at application of treatment T1 i.e. Pinoxaden at 55 days after sowing of wheat when significant weed population was present, the mean of weed density 2.0, 3.67 and 1.33 m-2 followed by 12.67, 17.67 and 12.0 m-2 weed density which was recorded from T2 treated plot as compared to weedy check plot at Adaptive Research

Summary

Introduction

Wheat (Triticum aestivum L.) is a major player in world food security and for a sustainable food supply. Management of many factors can significantly contribute in increasing the grain yield of wheat in Pakistan Among these factors, weed management is an important factor. In Pakistan wheat crop grown on an area of 9250 thousand hectare and it contributed in total production was 25478 thousand ton during 2014-15 [1]. Weeds may support the development of plant diseases like bacterial and fungal, providing shelter for pests of all kinds and act as host plants for plant parasitic nematodes It is very needful by these several reasons for completely eliminating weeds community from the crop environment. In light of the crop losses due to weeds, the present studies were planned and an experiment was conducted at different locations under Adaptive Research zone Sheikhupura with the objective to evaluate different herbicides for controlling narrow leave weeds in wheat.

Results and discussion

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Conclusion