Effects of defoliants on defoliation, yield and quality of machine-picked cotton in different planting modes

doi:10.6048/j.issn.1001-4330.2023.11.008

Xinjiang Agricultural Sciences ›› 2023, Vol. 60 ›› Issue (11): 2661-2666.DOI: 10.6048/j.issn.1001-4330.2023.11.008

• Crop Genetics and Breeding · Germplasm Resources·Molecular Genetics·Soil Fertilizer • Previous Articles Next Articles

Effects of defoliants on defoliation, yield and quality of machine-picked cotton in different planting modes

JIANG Congjun¹^,²(), Alifu Aierxi¹^,², LIN Tao¹^,², SHA Hong¹, ZHENG Zipiao¹, Nuermanguli Wupuer³, JIANG Zhengjun³, CUI Jianping¹^,², GUO Rensong¹^,², WANG Liang¹, ZHANG Na¹

1. Institute of Economic Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
2. Key Laboratory of Desert-Oasis Crop Physiology, Ecology and Cultivation, Ministry of Agriculture and Rural Affairs, Urumqi 830091, China
3. Bachu Agricultural Technology Extension Center, Bachu Xinjiang 843800,China

Received:2023-01-30 Online:2023-11-20 Published:2023-12-07
About author:JIANG Congjun (1965-), Male, Urumqi, Xinjiang, promotion research fellow of, The research direction is cotton cultivation,(E-mail)1612786082@qq.com
Supported by:
The Open Project of Key Laboratory of Desert-Oasis Crop Physiology, Ecology and Cultivation, MOARA(25107020-201907);The Open Project of the National Key Laboratory(CB2019A16)

脱叶剂对机采棉不同种植模式脱叶效果、产量及品质的影响

蒋从军¹^,²(), 阿里甫·艾尔西¹^,², 林涛¹^,², 沙红¹, 郑子漂¹, 努尔曼古丽·吾甫尔³, 蒋争军³, 崔建平¹^,², 郭仁松¹^,², 王亮¹, 张娜¹

1.新疆农业科学院经济作物研究所,乌鲁木齐 830091
2.农业农村部荒漠绿洲作物生理生态与耕作重点实验室,乌鲁木齐 830091
3.巴楚县农业技术推广中心,新疆巴楚 843800

作者简介:蒋从军(1965-),男,新疆乌鲁木齐人,推广研究员,研究方向为棉花栽培,(E-mail)1612786082@qq.com
基金资助:
农业农村部荒漠绿洲作物生理生态与耕作重点实验室开放课题(25107020-201907);棉花生物学国家重点实验室开放课题(CB2019A16)

Abstract

Abstract:

【Objective】 To study the effects of defoliants on defoliation, yield and quality of machine-picked cotton in southern Xinjiang. 【Methods】 The 4 machine-picked cotton planting modes were set up, one film six lines K₁[(12 cm+64 cm+12 cm+64 cm+12 cm)+64 cm]×11 cm; one film three lines K₂[(76 cm+76 cm)+76 cm]×5.6 cm; one film three lines K₃[(76 cm+76 cm)+76 cm]×9.5 cm; one film four lines K₄[(12 cm+64 cm+12 cm)+64]cm×11 cm. during the cotton fluffing period, the effects of defoliation, yield and quality were analyzed under different planting patterns after spraying defoliation ripening agent. 【Results】 There were no significant difference in defoliation rate and fluffing rate in 25 days after spraying defoliation and ripening agent in different planting modes. The K₁ planting mode had the highest yield, and the seed cotton yield was respectively 5.15%, 8.7%, and 4.5% higher than those of the K₂, K₃, and K₄ planting modes in 2020. After spraying the defoliant ripening agent, there was no significant difference in uniformity of length of cotton fiber, specific breaking strength, micronaire, elongation at break, staple fibre index and maturity between different planting patterns.【Conclusion】 There is no significant difference in defoliation rate and flocculation rate among different planting modes after spraying defoliation and ripening agent. Spraying defoliation and ripening agent has little effect on cotton fiber quality,cotton yield is the highest under the mode of one film six lines.

Key words: cotton; defoliant; planting pattern; defoliation effect; quality

摘要：

【目的】 研究脱叶剂对新疆南疆机采棉不同种植模式脱叶效果、产量及品质的影响。【方法】 设4种机采棉种植模式,1膜6行K₁[(12 cm+64 cm+12 cm+64 cm+12 cm)+64 cm]×11 cm;1膜3行K₂[(76 cm+76 cm)+76 cm]×5.6 cm;1膜3行K₃[(76 cm+76 cm)+76 cm]×9.5 cm;1膜4行K₄[(12 cm+64 cm+12 cm)+64 cm]×11 cm。在棉花吐絮期喷施脱叶催熟剂,分析对棉花不同种植模式脱叶效果、产量及品质的影响。【结果】 不同种植模式喷施脱叶催熟剂后25 d脱叶率无显著差异、吐絮率无显著差异。K₁种植模式产量最高,籽棉产量分别较K₂、K₃、K₄种植模式高5.15%、8.7%、4.5%。喷施脱叶催熟剂后,不同种植模式间棉纤维长度整齐度、断裂比强度、马克隆值、断裂伸长率、短纤维指数、成熟度间无显著差异。棉纤维上半部平均长度K₁、K₂、K₃间无显著差异,K₂与K₃较K₄高,有显著差异。【结论】 喷施脱叶催熟剂后不同种植模式间脱叶率、吐絮率均无显著差异。喷施脱叶催熟剂对棉纤维品质影响较小。1膜6行模式棉花产量最高。

关键词: 棉花, 脱叶剂, 种植模式, 脱叶效果, 品质

CLC Number:

S562

JIANG Congjun, Alifu Aierxi, LIN Tao, SHA Hong, ZHENG Zipiao, Nuermanguli Wupuer, JIANG Zhengjun, CUI Jianping, GUO Rensong, WANG Liang, ZHANG Na. Effects of defoliants on defoliation, yield and quality of machine-picked cotton in different planting modes[J]. Xinjiang Agricultural Sciences, 2023, 60(11): 2661-2666.

蒋从军, 阿里甫·艾尔西, 林涛, 沙红, 郑子漂, 努尔曼古丽·吾甫尔, 蒋争军, 崔建平, 郭仁松, 王亮, 张娜. 脱叶剂对机采棉不同种植模式脱叶效果、产量及品质的影响[J]. 新疆农业科学, 2023, 60(11): 2661-2666.

Figures/Tables 4

References 21

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处理 Treatment	施药第14 d 脱叶率(%) The defoliation rate on the 14 th day of defoliant spraying	施药第25 d 脱叶率(%) The defoliation rate on the 25 th day of defoliant spraying
K₁	71.70^a	81.87^a
K₂	71.05^a	82.48^a
K₃	75.17^a	84.45^a
K₄	71.96^a	82.08^a

处理 Treatment	施药第14 d 脱叶率(%) The defoliation rate on the 14 th day of defoliant spraying	施药第25 d 脱叶率(%) The defoliation rate on the 25 th day of defoliant spraying
K₁	71.70^a	81.87^a
K₂	71.05^a	82.48^a
K₃	75.17^a	84.45^a
K₄	71.96^a	82.08^a

处理 Treat- ment	施药前吐絮率 The boll opening rate before the defoliant spraying(%)	施药第14 d 吐絮率 The boll opening rate on the 14 th day of defoliant spraying(%)	施药第25 d 吐絮率 The boll opening rate on the 25 th day of defoliant spraying(%)
K₁	41.76^b	88.45^b	98.11^a
K₂	44.74^b	91.11^b	98.19^a
K₃	52.97^a	94.77^a	98.59^a
K₄	46.20^b	89.38^b	98.26^a

处理 Treat- ment	施药前吐絮率 The boll opening rate before the defoliant spraying(%)	施药第14 d 吐絮率 The boll opening rate on the 14 th day of defoliant spraying(%)	施药第25 d 吐絮率 The boll opening rate on the 25 th day of defoliant spraying(%)
K₁	41.76^b	88.45^b	98.11^a
K₂	44.74^b	91.11^b	98.19^a
K₃	52.97^a	94.77^a	98.59^a
K₄	46.20^b	89.38^b	98.26^a

处理 Treatment	单位面积总铃数 Total bolls per unit area (10⁴个/hm²)	单铃重 Single boll weight (g)	衣分 Lint (%)	籽棉产量 Yield of seed cotton (kg/hm²)	皮棉产量 Lint yield of cotton (kg/hm²)
K₁	115.01^a	6.10^a	44.93^a	6 317.0^a	2 840.47^a
K₂	105.39^b	6.37^a	43.9b	6 007.5^c	2 638.40^c
K₃	100.56^b	6.43^a	44.97^a	5 811.5^d	2 613.60^c
K₄	108.99^ab	6.13^a	45.00^a	6 045.0^b	2 721.47^b

Effects of defoliants on defoliation, yield and quality of machine-picked cotton in different planting modes

脱叶剂对机采棉不同种植模式脱叶效果、产量及品质的影响

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处理 Treatments		上半部平均长度 Upper half mean Length (mm)	长度整齐度指数 Uniformity index (%)	断裂比强度 Specific strength at break (CN/tex)	断裂伸长率 Elongation at break (%)	短纤维指数 Short fibre index (%)	马克隆值 Micronaire	成熟度 Maturity
K₁	清水	29.80^a	85.80^a	31.00^a	11.73^bc	5.17^a	4.37^a	0.82^a
K₁	脱叶剂	29.53^ab	85.47^a	29.80^a	11.93^abc	5.60^a	3.97^a	0.82^a
K₂	清水	29.87^a	84.53^a	29.27^a	11.73^bc	5.93^a	4.60^a	0.83^a
K₂	脱叶剂	29.90^a	85.30^a	29.67^a	11.33^c	5.80^a	4.33^a	0.82^a
K₃	清水	30.10^a	85.13^a	28.83^a	13.03^a	5.93^a	4.23^a	0.81^a
K₃	脱叶剂	30.07^a	85.40^a	29.93^a	11.67^bc	5.23^a	4.37^a	0.82^a
K₄	清水	29.23^ab	85.17^a	27.90^a	12.77^ab	6.17^a	4.43^a	0.82^a
K₄	脱叶剂	28.40^b	84.23^a	29.90^a	11.93^abc	5.80^a	4.10^a	0.82^a

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