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<p>A two-year study (2023–2024) investigated the impact of boll morphology (boll shape; round, ovate, and elliptic) on key yield-attributing and fibre quality parameters across nine distinct upland cotton (<i>G. hirsutum</i>) genotypes as per DUS testing guidelines of Protection of Plant Varieties and Farmers’ Right Authority (PPV &amp; FRA), New Delhi, India. Elliptic boll genotypes consistently yielded less seed cotton and had fewer seeds per boll than ovate and round types. While boll weight varied annually, elliptic bolls always observed with a significantly higher seed index. In terms of fibre quality, elliptic bolls consistently delivered superior ginning out turn (GOT%) and fibre strength across both years. Fiber length was also statistically higher for elliptic bolls in 2023, though this wasn’t significant in 2024 due to specific genotypic performance. Principal component analysis revealed a stable positive association between boll weight and seed cotton yield. However, relationships between specific boll shapes and fibre quality traits shifted between years. This research clarifies the interplay of genetics and environment on cotton traits, offering crucial insights for breeding programs to enhance cotton productivity and fibre quality.</p>

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Deciphering the Influence of Boll Morphology on Seed Cotton Yield and Fibre Quality in Upland Cotton (Gossypium hirsutum L.)

  • 期刊论文

  • 发表日期：

    2026年3月25日

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  • V. Santhy,
  • Pratik Dhakade,
  • Debashis Paul,
  • B. Fande,
  • Sunil Mahajan,
  • V. N. Waghmare

摘要

A two-year study (2023–2024) investigated the impact of boll morphology (boll shape; round, ovate, and elliptic) on key yield-attributing and fibre quality parameters across nine distinct upland cotton (G. hirsutum) genotypes as per DUS testing guidelines of Protection of Plant Varieties and Farmers’ Right Authority (PPV & FRA), New Delhi, India. Elliptic boll genotypes consistently yielded less seed cotton and had fewer seeds per boll than ovate and round types. While boll weight varied annually, elliptic bolls always observed with a significantly higher seed index. In terms of fibre quality, elliptic bolls consistently delivered superior ginning out turn (GOT%) and fibre strength across both years. Fiber length was also statistically higher for elliptic bolls in 2023, though this wasn’t significant in 2024 due to specific genotypic performance. Principal component analysis revealed a stable positive association between boll weight and seed cotton yield. However, relationships between specific boll shapes and fibre quality traits shifted between years. This research clarifies the interplay of genetics and environment on cotton traits, offering crucial insights for breeding programs to enhance cotton productivity and fibre quality.