数字农科院2.0

A 5-year field study to assess interannual variability and determinants of cotton fiber quality in intercropping systems

文献类型： 外文期刊

作者： Haoyue Qin;Yurui Tang;Xin Li;Yurong Qiu;Jian Wang;Yingchun Han;Guoping Wang;Shiwu Xiong;Minghua Xin;Wenli Du;Lu Feng;Yongjiang Zhang;Yabing Li;Xiao Fei Li

作者机构：

关键词： Cotton-based intercrops;Fiber quality variability;Risk assessment;Temporal stability;Trade-offs

期刊名称： European Journal of Agronomy

ISSN： 1161-0301

年卷期： 2025 年 171 卷

页码：

收录情况： SCIE（2025版）

摘要： Climate change and market demands emphasize the importance of both the average quality and long-term stability of end-use fiber quality in cotton production. Intercropping, a sustainable agriculture practice, has demonstrated potential to enhance cotton fiber quality compared to monoculture. However, the impacts of intercropping on cotton fiber quality stability and key factors influencing quality variability remain poorly understood. This study analyzed five years of data to investigate the variability and controlling factors of cotton fiber quality in both monoculture and intercropping. The results indicated that intercropping maintained cotton fiber length within the long fiber range. While intercropping did not influence fiber quality temporal stability or the risk of quality decline, higher stability was associated with a reduced probability of quality deterioration. Trade-offs among fiber quality traits were observed, indicating that improving one trait often negatively impacted another. Intercropping had minimal impact on these trade-offs. Weather factors accounted for 17–33 % of fiber quality variability, with the effects varying by specific quality trait. Precipitation and photosynthetically active radiation positively influenced fiber length, strength, and uniformity index but negatively affected micronaire and elongation. In contrast, temperature positively influenced all measured fiber quality traits. Overall, our results demonstrate intercropping maintained relatively stable fiber quality over time. This study also reveals strong trade-offs among multiple cotton fiber quality traits, underscoring the need to close trade-offs and achieve synergistic improvements in future research.

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