Scholarlink

<p>The flowering, yield and quality of small-grain non-Basmati aromatic rice (<i>cv. Radhunipagal,</i> GI No. 1042/2025<i>)</i> was studied under varied planting techniques and nutrient management in three multi-locational field trials conducted at Bidhan Chandra Krishi Viswavidyalaya, Nadia, West Bengal, India. The flower initiation of tall-<i>indica</i> rice was more influenced by planting time than sowing time, while the crop raised with different seedling ages [25&#xa0;days (<i>A</i><sub>25</sub>), 35&#xa0;days (<i>A</i><sub>35</sub>) and 45&#xa0;days (<i>A</i><sub>45</sub>)] had variation in life duration and summed GDD, but flowering in similar time (10–21 October, day length ± 11.64&#xa0;h). Although <i>A</i><sub>25</sub> improved the grain yield (2.53 t ha<sup>−1</sup>) and <i>A</i><sub>45</sub> recorded maximum alkali spreading value (score 3.3), but seedling age had no influence on aroma due to very close period of post-flowering to maturity. Planting in end of July (<i>D</i><sub>30J</sub>) resulted in highest grain yield (2.43 t ha<sup>−1</sup>) being 4.5 and 10.7% greater over mid. July (<i>D</i><sub>15J</sub>) and mid. August (<i>D</i><sub>15A</sub>) plantings, along with greater head rice recovery (61.6%) and medium-strong aroma (score 2.4). Wide-square spaced crop (20&#xa0;cm × 20&#xa0;cm) had less lodging tendency (score 2.1) and maximum protein content (6.3%), but close-square planting (15&#xa0;cm × 15&#xa0;cm, 44 hills m<sup>−2</sup>) led to higher grain yield (2.52 t ha<sup>−1</sup>). The application of FYM @ 4 t + N<sub>40</sub>P<sub>20</sub>K<sub>20</sub> kg ha<sup>−1</sup> resulted in greater yield (2.37 t ha<sup>−1</sup>) and amylose content (17.3%), while root dipping with <i>Azospirillum</i> caused 11.3% greater yield and favoured aroma formation over no bio-fertilizer application in new alluvial soil.</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

Flowering, yield and quality of small-grain GI-tagged aromatic rice (cv. Radhunipagal) under varied planting parameters and nutrition in lower gangetic plains

  • 期刊论文

  • 发表日期：

    2025年8月1日

查看全文
  • Shilpi Bera,
  • Ashis Kumar Pal,
  • Sayani Bhattacharya,
  • Mrityunjay Ghosh,
  • Sibajee Banerjee,
  • Souti Mukherjee,
  • Subhrojit Dolui,
  • Amitava Bhattacharya

摘要

The flowering, yield and quality of small-grain non-Basmati aromatic rice (cv. Radhunipagal, GI No. 1042/2025) was studied under varied planting techniques and nutrient management in three multi-locational field trials conducted at Bidhan Chandra Krishi Viswavidyalaya, Nadia, West Bengal, India. The flower initiation of tall-indica rice was more influenced by planting time than sowing time, while the crop raised with different seedling ages [25 days (A25), 35 days (A35) and 45 days (A45)] had variation in life duration and summed GDD, but flowering in similar time (10–21 October, day length ± 11.64 h). Although A25 improved the grain yield (2.53 t ha−1) and A45 recorded maximum alkali spreading value (score 3.3), but seedling age had no influence on aroma due to very close period of post-flowering to maturity. Planting in end of July (D30J) resulted in highest grain yield (2.43 t ha−1) being 4.5 and 10.7% greater over mid. July (D15J) and mid. August (D15A) plantings, along with greater head rice recovery (61.6%) and medium-strong aroma (score 2.4). Wide-square spaced crop (20 cm × 20 cm) had less lodging tendency (score 2.1) and maximum protein content (6.3%), but close-square planting (15 cm × 15 cm, 44 hills m−2) led to higher grain yield (2.52 t ha−1). The application of FYM @ 4 t + N40P20K20 kg ha−1 resulted in greater yield (2.37 t ha−1) and amylose content (17.3%), while root dipping with Azospirillum caused 11.3% greater yield and favoured aroma formation over no bio-fertilizer application in new alluvial soil.