Scholarlink

<p>Usually, a raphe in field pea (<i>Pisum sativum</i> L.) seed is present as a rudimentary scar, considered as a water movement controlling track inside the seed. Among approximately 497 field pea genotypes developed through conventional breeding, seeds with an open raphe were only observed in genotype IPFR 24-18. This is the first report in field pea where a seed has such a prominent open raphe. To understand the implications of such traits, we compared the water uptake and seed germination efficiency of this genotype with other recently released high-yielding cultivars. The water uptake studies showed that this open raphe genotype had significantly higher initial moisture imbibing ability (&gt; 50%) as compared to other varieties (&lt; 20%). There were no significant differences in final seed germination recorded, however, the open raphe genotype expressed faster germination as it took significantly less time for initiation of germination (15.9&#xa0;h), to achieve 50% germination (28.2&#xa0;h), mean germination time (28.1) as compared to other varieties. Such genotypes may have the advantage and perform well under moisture-stress-prone situations, especially in rice-fallow areas or areas where winter sowing is usually performed on residual moisture of the rainy season.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

High-Yielding and Unique Field Pea (Pisum sativum L.) Genotype with an Open Raphe: Impact on Seed Water Uptake and Germination

  • 期刊论文

  • 发表日期：

    2025年10月13日

查看全文
  • Amrit Lamichaney,
  • A. K. Parihar,
  • P. K. Katiyar,
  • G. P. Dixit

摘要

Usually, a raphe in field pea (Pisum sativum L.) seed is present as a rudimentary scar, considered as a water movement controlling track inside the seed. Among approximately 497 field pea genotypes developed through conventional breeding, seeds with an open raphe were only observed in genotype IPFR 24-18. This is the first report in field pea where a seed has such a prominent open raphe. To understand the implications of such traits, we compared the water uptake and seed germination efficiency of this genotype with other recently released high-yielding cultivars. The water uptake studies showed that this open raphe genotype had significantly higher initial moisture imbibing ability (> 50%) as compared to other varieties (< 20%). There were no significant differences in final seed germination recorded, however, the open raphe genotype expressed faster germination as it took significantly less time for initiation of germination (15.9 h), to achieve 50% germination (28.2 h), mean germination time (28.1) as compared to other varieties. Such genotypes may have the advantage and perform well under moisture-stress-prone situations, especially in rice-fallow areas or areas where winter sowing is usually performed on residual moisture of the rainy season.