Quantifying Competitive Supremacy: A Comparative Study of Weed Suppression in Diverse Wheat Varieties

Amit Thapa, R. Bhattarai, Binu Rai, Chobindra Khand Shahi, Akshyama Aryal
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Abstract

Wheat is one of the three most important cereal crop in Nepal. It has significant nutritional value and serves as a major source of food in this country. Though various improved varieties of wheat have been released over the years, production has not been able to fulfill the demand which necessitate importation. One of the major constraints for this problem is weeds. In order to address this predominant issue, this study has been conducted to unveil the most weed resistant varieties to the surface. Varieties used were Sworgadwari, Munal, Dhawalagiri and WK-1204 in a split plot experimental design. The total number of treatments and replications was 8 and 4, respectively. The plot was categorized by main plot and sub plot. Main plot was weeding and no weeding whereas, sub plot was variety. The total area of experimental plot was 481m2. There were total 32 plots and the area of each plot was (3m*4m) 12 m2. The space between the plots was 0.5m2. The research tool used was Microsoft excel and Gene stat. From the research experiment, Sworgadwari was better in performance and more weed competitive in comparison to other varieties as it excelled in several parameters like height, spike length, grain per spike and biological yield followed by Munal exhibiting superiority over number of tillers in meter square and grain yield. Weeding exhibited high numbers in several parameters in comparison to no weeding practices.
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量化竞争优势:不同小麦品种抑制杂草的比较研究
小麦是尼泊尔最重要的三大谷类作物之一。它具有重要的营养价值,是尼泊尔的主要粮食来源。虽然多年来已推出了各种改良小麦品种,但产量仍无法满足需求,因此需要进口。造成这一问题的主要制约因素之一是杂草。为了解决这一主要问题,我们开展了这项研究,以揭示抗杂草能力最强的小麦品种。使用的品种是 Sworgadwari、Munal、Dhawalagiri 和 WK-1204,采用分小区试验设计。处理和重复总数分别为 8 和 4。小区分为主小区和副小区。主小区为除草和不除草小区,子小区为品种小区。试验小区总面积为 481 平方米。共有 32 个小区,每个小区的面积为(3 米*4 米)12 平方米。小区之间的间距为 0.5 平方米。使用的研究工具是 Microsoft excel 和 Gene stat。从研究实验来看,Sworgadwari 的表现比其他品种更好,杂草竞争力更强,在株高、穗长、每穗粒数和生物产量等多个参数上都表现优异,其次是 Munal,在每平方米分蘖数和谷物产量上表现优异。与不除草的做法相比,除草在多个参数上表现出较高的优势。
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