Maintaining Cotton Quality

Columbus, E. P.; Bel, Patricia; Robert, K.Q.

doi:10.13031/2013.31438

Cited by 7 publications

(6 citation statements)

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“…Several researchers have shown that the ginning setup will influence fiber properties (Anthony, 1990, 1992, 1996; Barker et al, 1976; Columbus et al, 1990; Mangialardi, 1993; Williford et al, 1987). In these studies, reductions in fiber length uniformity were documented when additional lint cleaners were included in the ginning sequence.…”

Section: Resultsmentioning

confidence: 99%

“…Many studies have investigated the impact of early and late harvests on cotton lint yield and fiber quality (Barker et al, 1976; Brown and Hyer, 1956; Columbus et al, 1990; Ray and Minton, 1973; Snipes and Baskin, 1994; Williford, 1992; Williford et al, 1995, 1987). Few studies, however, have investigated the effects of systematic delayed harvest on yield and quality (Ray and Minton, 1973; Williford et al, 1995).…”

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Losses in Yield, Quality, and Profitability of Cotton from Improper Harvest Timing

2002

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Excessive weathering may diminish cotton (Gossypium hirsutum L.) lint yield and fiber quality to the extent that economic losses occur for the producer. Our objective was to determine the effects of systematic delayed harvest on cotton lint yield, fiber quality, and profitability. Experiments were conducted from 1998 to 2000 at the Coastal Plain Experiment Station, Tifton, GA, on a Tifton loamy sand (fine‐loamy, kaolinitic, thermic Plinthic Kandiudults). The treatments consisted of a standard harvest‐aid combination applied at weekly intervals over a 13‐wk period beginning at first open boll. Harvest aids were applied to each plot according to its week after first open boll designation and machine harvested 2 wk thereafter. After ginning, fiber quality was determined on lint samples from each plot. High volume instrument (HVI) fiber length uniformity was greatest in 1999 and 2000 when harvest aids were applied between 58 and 88% open boll, while the advanced fiber information system (AFIS) fiber length by number coefficient of variation and short fiber content by number were lowest when harvest aids were applied from 40.1 to 46.8% open boll. The HVI upper half mean fiber length and the AFIS mean fiber length by number were greatest when harvest aids were applied between 39.1 and 56.7% open boll. In 1999 and 2000 lint yield and adjusted gross income were greatest when harvest aids were applied from 76.5 to 89.0% open boll. Results from this study indicate optimum fiber quality is established earlier during boll opening than lint yield and profitability.

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Section: Resultsmentioning

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confidence: 99%

Losses in Yield, Quality, and Profitability of Cotton from Improper Harvest Timing

2002

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“…Seed-cotton quality depends on the following: (1) production conditions from sowing to picking (soil, variety, climate, and crop management practices, including the harvesting technique); and (2) storage and ginning conditions (seed-cotton cleaning, ginning, and lint cleaning). 6,7 It is possible to disregard the conditions listed in (1) above and only use the quality of the ginning mill output to monitor the impact of the ginning conditions on quality. Although this approach may work in countries where seed-cotton is grown in large homogeneous plots on entrepreneurial farms, it is more likely to fail in WCA where seed-cotton is grown in numerous small plots on small farms.…”

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Feasibility study: a new way to check the stability of industrial ginning throughout the season

Togola

Gourlot²,

Gozé³

et al. 2017

Textile Research Journal

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The quality of cotton fiber observed at classing depends on the production conditions (soil, variety, climate, and crop management practices, including harvesting technique) and on the ginning conditions (seed-cotton cleaning, ginning, and lint cleaning). Thus, when lint quality is monitored, variations in seed-cotton quality may be confused with the impact of variations in ginning conditions. So, rather than measuring the quality of the cotton leaving the ginning mill, we propose measuring the impact of ginning conditions on the difference in quality between a batch of cotton ginned in the mill and a sample of the same batch ginned using micro-ginning equipment. By comparing 11 industrial ginning mills with the micro-ginning equipment used as a control, this feasibility study evaluated the impact of ginning conditions in an experiment on 119 seed-cotton modules in Mali throughout the 2014–2015 season. Based on this comparison, data analysis showed that the ginning process did have an impact on cotton quality, that the impact varied with the date, and that it was only linked to ginning conditions. Conversely, no alert concerning the impact of industrial ginning conditions was issued based on the results of the evaluation of the quality of fiber samples from industrial ginning mills alone.

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“…Research into the machine harvest effects on neps have included the impacts of harvest timing 7–9 and harvester setup, 10 and comparisons between spindle and stripped harvested cotton. 11 Mangialardi et al 7 and Bange et al 12 also showed that the level of neps in spindle machine-harvested cotton was related to fiber maturity and linear density caused by differences in the maturity of bolls presented at harvest.…”

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Impact of harvest aid timing and machine spindle harvesting on neps in upland cotton

Bange

Long

2012

Textile Research Journal

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Neps are fiber entanglements created during the mechanical processing of cotton and are often associated with immature fibers. Even in small amounts neps can affect textile quality and cotton marketability. Machine harvesting, lower fiber linear density (fineness), and more immature bolls at harvest are factors that contribute to neps. However, it is not clear whether differences in fiber linear density or immature bolls at harvest combine with harvest method to substantially affect neps. The aim of this study was to compare machine spindle and hand-harvested cotton collected from four field studies with treatments that differed in percentage of immature bolls and fiber linear density at harvest (resulting from differences in harvest aid timing) and to test for statistical interactions. By systematically varying the timing of harvest aids to cease crop growth, removing fruiting branches, or both, differences in the percentage of immature bolls and fiber linear density were generated. In all studies spindle harvesting increased neps, but there were no significant statistical interactions between the harvest method with harvest aid timing or branch removal treatments. When all measurements of neps were combined across studies there was a multiple regression that explained the level of neps with the harvest method and fiber linear density ( R2 = 0.66). These responses supported the individual season analyses, finding no statistical interaction of harvest method with either variable. Spindle harvesting increased neps by an average of 53 count/g compared to hand harvesting. Identifying reasons for differences in nep levels between cotton growing regions may assist in developing strategies to reduce neps.

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Maintaining Cotton Quality

Cited by 7 publications

References 0 publications

Losses in Yield, Quality, and Profitability of Cotton from Improper Harvest Timing

Losses in Yield, Quality, and Profitability of Cotton from Improper Harvest Timing

Feasibility study: a new way to check the stability of industrial ginning throughout the season

Impact of harvest aid timing and machine spindle harvesting on neps in upland cotton

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