Effect of Weed Control Methods on Weeds and Wheat (&lt;i&gt;TriticumAestivum&lt;/i&gt;&lt;i&gt; &lt;/i&gt;L.) Yield

Amare, Tesfay; Sharma, J. J.; Zewdie, Kassahun

doi:10.12691/wjar-2-3-7

Cited by 30 publications

(35 citation statements)

References 3 publications

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“…These results are correlated with the study of Hossain et al [21] who documented that application of post emergence herbicides reduced the weed dry weight and consequently increased weed control efficiency. These findings are also in agreement with the finding of Amare et al [22] who reported that application of isoproturon @ 1.00kg a.i. ha -1 significantly reduced the weed dry biomass, which ultimately increased the weed control efficiency in wheat.…”

Section: Yield and Yield Componentssupporting

confidence: 94%

Evaluation of Herbicides for the Control of Annual Grass Weeds in Malt Barley

2019

JBAH

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A study was conducted at Bekoji and Kofele farmer's field in 2015/16 and 2016/17 cropping seasons to evaluate effectiveness of two post-emergence herbicides for the control of annual grass weeds in malt barley. Phenoxapropethyl 1 lit/ha, Fenoxaprop-p-ethyl 69 g/l + safener-Mefenpyr-diethyl 75 g/l 1 lit/ha, hand weeding twice (30-35 and 55-60 Days After Sowing) as a standard check and a weedy check, respectively were laid out in Randomized Block Design considering sites as a replications. Malt barley, Holker was used as a test variety. Annual grass weeds like Snowdenia polystachya, Avena fatua, Phalaris paradoxa and Setaria pumila were controlled by Phenoxapropethyl 1 lit/ha a.i and Fenoxaprop-p-ethyl 69 g/l + safener-Mefenpyr-diethyl 75 g/l a.i 1 lit/ha with an efficacy rate of 80 to 100%. Fenoxaprop-p-ethyl69 g/l + safener-Mefenpyr-diethyl 75 g/l had a yield advantage over Phenoxapropethyl and weedy check by 21 and 62%, respectively. Application of Fenoxaprop-pethyl 69 g/l + safener-Mefenpyr-diethyl 75 g/l a.i (23027 Birr) had higher economic benefit than hand weeding twice (22158 Birr), Phenoxapropethyl a.i (17950 Birr) and weedy check (8670 Birr) by 4, 22 and 62%, respectively. It was economically profitable with marginal rate of return of 2538% even if the price of herbicide is increased by 20% as proven by the sensitivity analysis. Hence, Fenoxaprop-p-ethyl 69 g/l + safener-Mefenpyr-diethyl 75 g/l a.i at a rate of 1 lit/ha as post-emergence application can be recommended for the control of annual grass weed species in Malt barley for agro-ecologies similar to the study areas.

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Section: Yield and Yield Componentssupporting

confidence: 94%

Evaluation of Herbicides for the Control of Annual Grass Weeds in Malt Barley

2019

JBAH

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“…The result also clearly indicated that harvest index was lower at higher total biomass production. Similar findings were reported from Ali et al(2014) and Amare et al(2014) concluded that harvest index increased with decreased in weed competition. Sujoy et al (2006) was also reported that significant variation in harvest index of wheat due to weed control treatments.…”

Section: Harvest Indexsupporting

confidence: 90%

“…Thousand grains weight was counted from the bulk of threshed produce from the net plot area and their weight recorded. biological yield (kg ha -1 ) was determined by taking the total weight of the harvest from each net plot area after sun dried the whole aboveground biomass.Grain yield was measured after threshing the sun dried plants harvested from each net plot and the yield was adjusted at 12.5% grain moisture content (Amare et al, 2014).Harvest index was calculated by dividing grain yield per plot by the total aboveground dry biomass yield per plot (Amare et al, 2014;Tana et al,2018…”

Section: Data Collectionmentioning

confidence: 99%

Weed Management and Productivity of Bread Wheat as Affected by Seed Rates and Herbicides Application at Holeta Ethiopia

Ayana¹

2020

JBAH

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Wheat is one of the most important food security crops which is cultivated from small to large scale farms in Ethiopia. However, its productivity has been limited due to various abiotic and biotic factors including weeds. The aim of the study was to investigate the effects of seed rates and post emergence herbicides application on weed management and productivity of wheat. Factorial combinations of three levels of seed rates (100,150 and 200 kg ha-1)and four types of herbicides (Agro 2,4-D 720 g/L 1lt ha-1 ,Pallas 45 OD 0.5lt ha-1 ,Derby 175 SC 100ml ha-1 and Lancolet 450 WG 33 gm ha-1)along with control (a weedy check) were laid out in RCBD with three replications. A total of identified 12 weed species were recorded (86 % broad and 14 % grass weeds). Results also revealed that significant effects of seed rate by herbicide interaction for all the traits studied. The minimum weed densities (2.7 m-2) at 45 days after planting , dry biomass of grass weeds (33.33 kg ha-1) and the highest weed control efficiency (81.22%) were recorded from the interaction effects of 150 seed rate with Pallas 45 OD while the minimum dry biomass of broad leaf weeds (53.33 kg ha-1) was recorded at 200 kg ha-1 seed rate with Lancolet 450 Wattable Granule (WG). The highest number of productive tillers(133.33 m-2),seeds per spike(76.48), thousand grain weight (44.36 g),grain yield (4516.42 kg ha-1)and biological yield(13100 kg ha-1) were recorded from the combination of 150 kg ha-1 seed rate with Pallas 45 OD while the lowest values were observed from the weedy check .Grain yield had strong positive correlations with each of the yield components, however it was negatively correlated with dry weed biomass. Based on partial budget analysis, the maximum net benefit was obtained from the interaction of 150 kg ha-1 seed rate with Pallas 45 OD but higher number of marginal rate of return was calculated from 150 kg ha-1 seed rate with 2,4-D. It was also observed that, the combined use of seed rate 150 kg ha-1 with Pallas 45 OD effectively managed weeds, economical and gave maximum yields, which could be recommended for the test environment. Since the experiment was conducted in one location and for a single season, it should be repeated over seasons or multi locations for best recommendation.

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“…The investigational data were statistically analysed using the analyses of variance techniques according to [40]. When 'F' value was seen to be significant at the 5% level of probability, the standard error (SE) was calculated.…”

Section: Discussionmentioning

confidence: 99%

Effect of Salicylic Acid Sprays on the Performance of Fenugreek Grown with Graded Levels of Salinity

Mohammad¹,

Wajid²,

Bhat³

2019

SJLS

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An experiment was carried out in a net-house, Aligarh Muslim University Department of Botany. The six different treatments that were used in this study includes control, Salicylic acid, NaCl (50 mM), SA + 50 mM NaCl, 100 mM NaCl and SA + 100 mM NaCl. The resultant plants from salt-treated seeds of the present investigation indicated that seeds recorded lower values for all the growth attributing parameters. It was deep-rooted that 50 mM and 100 mM salt concentrations harm the growth, biochemical and yield parameters of fenugreek. Salt stress reduces plant height, fresh weight, dry weight, chlorophyll content, Nitrate reductase activity, number of pods and seed yield in fenugreek. The foliar application of Salicylic acid alleviates the negative effect of salinity. This effect was more pronounced in 50 mM salt stress than 100 mM.

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Effect of Weed Control Methods on Weeds and Wheat (<i>TriticumAestivum</i><i> </i>L.) Yield

Cited by 30 publications

References 3 publications

Evaluation of Herbicides for the Control of Annual Grass Weeds in Malt Barley

Evaluation of Herbicides for the Control of Annual Grass Weeds in Malt Barley

Weed Management and Productivity of Bread Wheat as Affected by Seed Rates and Herbicides Application at Holeta Ethiopia

Effect of Salicylic Acid Sprays on the Performance of Fenugreek Grown with Graded Levels of Salinity

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