Evaluation of Striga Suppression Effect Herbicides (Chlorsulfuron 75% WDG) on Sorghum ((Sorghum bicolor (L.) Moench) in Western Tigray, Ethiopia

A. Kebede, Yirga Belay Kindeya, Letemaryam Desta, Zereabrk Geremedhin Tafere
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Abstract

Striga is the major sorghum production constraints in western Tigray, Ethiopia. Three Striga sick plot locations (Rawyan, Adebay and Beaker Kebeles) were selected during 2019 main cropping season. The objective of the study was to evaluate the Striga suppression effect of Chlorsulfuron 75% WDG (Turkey and china) product herbicides on sorghum. The experiment was laid out in randomized complete block design (RCBD) with three replications and ten (10gram/hectare) Chlorsulfuron 75% WDG were diluted in water and applied three weeks after planting. Striga count at 60 days after planting, at harvesting and grain yield were recorded and analyzed using GenStat 18version. The treatments showed statistically significant difference (p<001) in Striga and grain yield. But, there was no significant variation between the tested herbicides. The highest Striga count (1602.3/plot) was recorded from control followed by china product (365/plot) and turkey (303.3). The highest mean Striga reduction (81.07%) was recorded from Turkey followed by china (77.22%). The highest Striga count was recorded in Adebay (1298.33) followed by Rawyan (631.33) and Beaker (345).17.98 quintal/hectare, 16.11 and 9.55 yield was recorded in Rawyan, beaker and Adebay respectively The highest grain yield 18.33 quintal/hectare was recorded from Turkey product which is 50.19% yield advantage, 16.48 quintal/hectare 44.6% yield advantage in china product while 9.13quintal/hectare from control. From the study result recommended that both the Turkey and china product herbicides will be promoted to further demonstration and popularization at farm level.
除草剂氯磺隆75% WDG对高粱(Sorghum bicolor (L.))的抑制效果评价Moench)在西提格雷,埃塞俄比亚
斯特里加是埃塞俄比亚提格雷西部高粱生产的主要制约因素。2019年主要种植季选择了三个Striga病区(Rawyan、Adebay和Beaker Kebeles)。研究了氯磺隆75% WDG(土耳其和中国)产品除草剂对高粱Striga的抑制效果。试验采用随机完全区组设计(RCBD), 3个重复,播种3周后施用10剂(10g /公顷)75%氯磺隆WDG。使用GenStat 18version记录和分析种植后60天、收获时和籽粒产量的Striga计数。不同处理间稻瘟病菌和籽粒产量差异有统计学意义(p<001)。但是,被试除草剂之间没有显著差异。对照组史特雷加数最高(1602.3只/地),其次是中国产肉鸡(365只/地)和火鸡(303.3只/地)。土耳其的斯特里加菌感染率最高(81.07%),其次是中国(77.22%)。Striga数量最高的是阿德拜(1298.33),其次是Rawyan(631.33)和Beaker(345),产量分别为17.98、16.11和9.55吨/公顷。土耳其产品产量最高,产量优势50.19%,中国产品产量优势16.48吨/公顷,产量优势44.6%,对照为9.13吨/公顷。从研究结果来看,土耳其和中国的产品除草剂都将进一步在农场层面进行示范和推广。
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