Effect of Some Weed Control Packages on Seed Cotton Yield and Fiber Properties of Some Cotton Genotypes (Gossypium Barbadense, L.) and Its Associated Weeds

Soliman, I. E.; Khaffagy, Azza; Ghalwash, A. M.; El-Aal, Amal S. Abd

doi:10.21608/ejar.2014.155195

Cited by 2 publications

(4 citation statements)

References 2 publications

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“…Both early and late competition treatments did not cause significant effect on lint %. These results are in agreement with those obtained by Mohamed et al (1989) and Soliman et al (2014). In general, the increase in seed cotton yield per feddan is attributed to the increase in seed cotton yield per plant and boll weight owing to minimizing weed competition and consequently improve cotton plants to utilize from environmental resources.…”

Section: Effect Of Weed Removal and Weed Competition Periods On Yield...supporting

confidence: 93%

“…These results are in agreement with those obtained by Abd El Rehim et al (1995). They found that fiber length, micronaire reading, uniformity ratio and fiber elongation were not affected by hand hoeing and Soliman et al (2014), who mentioned that fiber length and micronaire reading were not affected by weed control treatments. ** Determination Critical period of weed competition to cotton Fig.…”

Section: Effect Of Weed Removal and Weed Competition Periods On Yield...mentioning

confidence: 99%

“…Bukun (2004), in Turky, found that weeds should be eliminated from 1-2 weeks up to 11-12 weeks of plant emergence and weed control strategies should be done in these periods. Soliman et al (2014) mentioned that boll weight, position of the 1 st sympodial node, fiber length, fiber strength and micronaire reading were not affected by weed control.…”

Section: Introductionmentioning

confidence: 99%

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EFFECT OF CRITICAL WEED COMPETITION PERIOD ON YIELD AND FIBER PROPERTIES OF COTTON (Gossypium barbadense, L.) IN NEW LANDS

Eid

Abou-Zied

Emara

2016

Egyptian Journal of Agricultural Sciences

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Two field experiments were conducted in a highly calcareous sandy clay loam soil at Nubaria Agric. Res. Station, Agric. Res. Center, Behera Governorate, Egypt during 2012 and 2013 seasons. The objectives were to study the effect of critical weed competition period on plant growth, seed cotton yield, its components and fiber properties of the Egyptian long-staple cotton cultivar Giza 86. The experimental design was a complete randomized block design with four replications. Each experiment included fourteen treatments in two groups, the first group included seven weed-free periods which were weed-free for the 3, 6, 9, 12, 15, 18 weeks from sowing and weed-free for the whole season, respectively, and the second included seven weed competition periods which were weed competition for the 3, 6, 9, 12, 15, 18 weeks from sowing and weed competition for the whole season, respectively. Results indicated that the fresh weight (g/m 2 ) of broad leaf weeds, grassy weeds and total annual weeds decreased by 93.1, 93.7 and 93.3%, respectively, with increasing weed removal periods to 18 weeks from sowing as compared with weed competition for the whole season treatment. Also, the effect of weed removal and weed competition periods were not statistically significant on position of 1 st sympodial node, no. of open bolls and no. of non open bolls/plant, where as the effect was statistically significant on the plant height, no. of sympodial branches/plant and no. of monopodial branches/plant. Weed competition for the whole season reduced seed cotton yield per feddan by 41.1% as compared with weed-free for the whole season. The results showed that the critical period of weed competition to cotton crop start 3 weeks after planting and continue until 18 weeks from planting and the critical competition point where yield losses from early or late competition after 15 weeks from planting were equal. From these results, weed control strategies in cotton should be done through 3-18 weeks from planting and cotton can be considered as week competition for weeds especially in the earlier periods of growth, which extend to the fifteen week from planting. All fiber properties were not affected significantly by weed removal and weed competition periods, except fiber strength.

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Section: Effect Of Weed Removal and Weed Competition Periods On Yield...supporting

confidence: 93%

Section: Effect Of Weed Removal and Weed Competition Periods On Yield...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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EFFECT OF CRITICAL WEED COMPETITION PERIOD ON YIELD AND FIBER PROPERTIES OF COTTON (Gossypium barbadense, L.) IN NEW LANDS

Eid

Abou-Zied

Emara

2016

Egyptian Journal of Agricultural Sciences

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“…Similar trend was noted in respect of physiological parameters such as growth and development, yield attributes and fibre quality characteristics. According to Soliman et al, (2013), unweeded check significantly reduced the seed cotton yield and quality parameters i.e. lint percent, staple length, micronaire value, fibre length and ginning percentage.…”

Section: Cotton Quality Characteristicsmentioning

confidence: 99%

Integrated Weed Management in Bt-Cotton Under Semi Arid Conditions – A Review

Singh¹,

Garg²,

Satpal³

et al. 2022

JART

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Cotton is one the major Kharif cash crop of India and is also known as ‘White Gold’ or ‘King of fibres’. Being a rainy season, long duration, wide spaced and slow growing crop at initial stage, it is highly sensitive to weed competition. The critical period of crop-weed competition is 15 to 60 days after sowing and during this period the crop suffers from heavy losses in seed cotton yield. Weeds are the major constraints that reduce the crop yields since they compete for the nutrients, moisture, light and space. The losses caused by weeds in cotton ranges from 50 to 85 percent depending upon the nature and intensity of weeds in the field. The most common practices adopted by the farmers are manual weeding and inter-culture operation. But during critical period of crop-weed competition, the non-availability of labour, high wages of labour and wet field conditions, leads to ambiguous conditions for cotton growers. Due to delay in inter-culture operations in the crop, ineffectual results produced are clearly reflected in final yield. Thus, timely management of weeds through physical, mechanical, biological and chemical means needs to be ensured for achieving the higher cotton productivity. Physical and mechanical methods are widely used but in case of biological weed control, limited options are available. Chemical weed management is the better choice of the farmer being economical, quick responsive and suitable to the prevailing conditions. Chemical weed control in cotton by using suitable pre and post emergence herbicides during critical period of crop-weed competition gives a way out to handle the situation and to realise higher productivity. Further, the integration of all the weed management practices in the form of IWM needs to be explored more and more being economically viable, ecologically sustainable and locally available and user friendly techniques. Realization of higher cotton yield and fetching better remunerations mainly depends on an integrated weed management approach that also recognizes the adoption of location specific cultivar.

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Effect of Some Weed Control Packages on Seed Cotton Yield and Fiber Properties of Some Cotton Genotypes (Gossypium Barbadense, L.) and Its Associated Weeds

Cited by 2 publications

References 2 publications

EFFECT OF CRITICAL WEED COMPETITION PERIOD ON YIELD AND FIBER PROPERTIES OF COTTON (Gossypium barbadense, L.) IN NEW LANDS

EFFECT OF CRITICAL WEED COMPETITION PERIOD ON YIELD AND FIBER PROPERTIES OF COTTON (Gossypium barbadense, L.) IN NEW LANDS

Integrated Weed Management in Bt-Cotton Under Semi Arid Conditions – A Review

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