Scholarlink

<p>The below-ground parts of <i>Valeriana jatamansi </i>have been extensively used in traditional and modern systems of medicine and aromatic industries. It is postulated that deheading (removing inflorescence) practice and optimal nitrogen (N) fertilization alter below-ground biomass (BGB) production and essential oil yield of <i>V. jatamansi</i>. A field trial was executed with twelve treatment arrangements involving two cultural practices (CP) (deheading and no-deheading) and six N levels (0-200 kg ha⁻¹) to comprehend how deheading practice and N modulate growth and essential oil biosynthesis. Irrespective of CP and N levels, temporal changes in BGB production and essential oil concentration were observed, and the maximum BGB and oil yield were registered at 12 and 8 months after transplanting (MAT), respectively. Deheading increased BGB and essential oil yield by 6-16% and 3-14%, respectively, compared with the no-deheading. Irrespective of the CP, the BGBs and oil yield were significantly (<i>p </i>≤ 0.05) increased by around 39-56% and 31-48%, respectively, with N at 200 kg ha⁻¹ compared with the control. However, the effects of applying N at 160 and 200 kg ha⁻¹ were at par (<i>p </i>≥ 0.05). The distinction in oil profile was observed due to the CP, N, and harvesting ages. The higher concentration of patchouli alcohol was recorded at 12 MAT, followed by 8 MAT. The organic carbon (OC) and N in the soil were increased with the N fertilization compared with the control. Results suggest that inflorescence removal and an optimal N dose could be a novel approach for harvesting higher essential oil of <i>V. jatamansi</i>.</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

Inflorescence Abscission and Nitrogen Fertilization Trigger Alterations in Below-ground Biomass and Essential Oil Yield of Valeriana jatamansi Jones and Soil Health

  • 期刊论文

  • 发表日期：

    2026年1月3日

查看全文
  • Shivani,
  • Babit Kumar Thakur,
  • Probir Kumar Pal

摘要

The below-ground parts of Valeriana jatamansi have been extensively used in traditional and modern systems of medicine and aromatic industries. It is postulated that deheading (removing inflorescence) practice and optimal nitrogen (N) fertilization alter below-ground biomass (BGB) production and essential oil yield of V. jatamansi. A field trial was executed with twelve treatment arrangements involving two cultural practices (CP) (deheading and no-deheading) and six N levels (0-200 kg ha⁻¹) to comprehend how deheading practice and N modulate growth and essential oil biosynthesis. Irrespective of CP and N levels, temporal changes in BGB production and essential oil concentration were observed, and the maximum BGB and oil yield were registered at 12 and 8 months after transplanting (MAT), respectively. Deheading increased BGB and essential oil yield by 6-16% and 3-14%, respectively, compared with the no-deheading. Irrespective of the CP, the BGBs and oil yield were significantly (p ≤ 0.05) increased by around 39-56% and 31-48%, respectively, with N at 200 kg ha⁻¹ compared with the control. However, the effects of applying N at 160 and 200 kg ha⁻¹ were at par (p ≥ 0.05). The distinction in oil profile was observed due to the CP, N, and harvesting ages. The higher concentration of patchouli alcohol was recorded at 12 MAT, followed by 8 MAT. The organic carbon (OC) and N in the soil were increased with the N fertilization compared with the control. Results suggest that inflorescence removal and an optimal N dose could be a novel approach for harvesting higher essential oil of V. jatamansi.