Scholarlink

<p>Globally, weed management in wheat fields involves the application of massive volumes of synthetic herbicides. Despite their effectiveness, the widespread application of these synthetic chemicals has led to various adverse effects on the environment and human health, as well as emergence of weed biotypes resistant to herbicides, posing a significant challenge. In this context, a pot and field experiment was conducted during 2020–2021 and 2021–2022 at experimental research farm CSIR-CIMAP, Lucknow, to study the phytotoxic effect of essential oil from <i>Mentha arvensis</i>, <i>Chrysopogon zizanioides,</i> and <i>Pelargonium graveolens</i> as post-emergence herbicide (35&#xa0;days after sowing) on <i>Phalaris minor</i>, a noxious weed, as well as on wheat as test crop. Under pot culture study, it is found that the essential oil of <i>M. arvensis</i>, <i>C. zizanioides,</i> and <i>P. graveolens</i> at 8% concentration (v/v) suppresses the growth of <i>P. minor</i> and also showed phytotoxicity toward wheat. On the basis of pot culture experiment results, we selected 2% and 4% concentration (v/v) of each essential oil for field experiment. Field study data revealed that the essential oil of <i>M. arvensis</i> and <i>P. graveolens</i> showed greater weed control efficiency (WCE) as compared to <i>C. zizanioides</i> without affecting the yield of wheat. Application of <i>M. arvensis, P. graveolens,</i> and <i>C. zizanioides</i> essential oil showed visible injury ranges from 30–80 to 10–40% in <i>P. minor</i> and wheat, respectively. Photosynthetic pigments (chlorophyll <i>a</i>, <i>b</i>, and carotenoids) and the rate of cellular respiration were both found to have significantly decreased in <i>P. minor</i> following treatment with essential oils from <i>M. arvensis</i>, <i>P. graveolens</i>, and <i>C. zizanioides</i>. Concurrently, there was a significant increase in relative electrolyte leakage, proline accumulation, protein, carbohydrate, and total phenolic content in the treated plants. This novel study concludes that the essential oil of <i>M. arvensis</i> and <i>P. graveolens</i> holds potential for the development of effective and sustainable bioherbicides for the control of <i>P. minor</i> which can help in minimizing the risks associated with synthetic herbicides.</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

Field-level evaluation of Mentha arvensis and Pelargonium graveolens essential oils as post-emergence bioherbicides for managing Phalaris minor in wheat

  • 期刊论文

  • 发表日期：

    2025年9月19日

查看全文
  • Pooja Maurya,
  • Abdul Mazeed,
  • Iffat Zareen Ahmad,
  • Chandan Singh Chanotiya,
  • Priyanka Suryavanshi

摘要

Globally, weed management in wheat fields involves the application of massive volumes of synthetic herbicides. Despite their effectiveness, the widespread application of these synthetic chemicals has led to various adverse effects on the environment and human health, as well as emergence of weed biotypes resistant to herbicides, posing a significant challenge. In this context, a pot and field experiment was conducted during 2020–2021 and 2021–2022 at experimental research farm CSIR-CIMAP, Lucknow, to study the phytotoxic effect of essential oil from Mentha arvensis, Chrysopogon zizanioides, and Pelargonium graveolens as post-emergence herbicide (35 days after sowing) on Phalaris minor, a noxious weed, as well as on wheat as test crop. Under pot culture study, it is found that the essential oil of M. arvensis, C. zizanioides, and P. graveolens at 8% concentration (v/v) suppresses the growth of P. minor and also showed phytotoxicity toward wheat. On the basis of pot culture experiment results, we selected 2% and 4% concentration (v/v) of each essential oil for field experiment. Field study data revealed that the essential oil of M. arvensis and P. graveolens showed greater weed control efficiency (WCE) as compared to C. zizanioides without affecting the yield of wheat. Application of M. arvensis, P. graveolens, and C. zizanioides essential oil showed visible injury ranges from 30–80 to 10–40% in P. minor and wheat, respectively. Photosynthetic pigments (chlorophyll a, b, and carotenoids) and the rate of cellular respiration were both found to have significantly decreased in P. minor following treatment with essential oils from M. arvensis, P. graveolens, and C. zizanioides. Concurrently, there was a significant increase in relative electrolyte leakage, proline accumulation, protein, carbohydrate, and total phenolic content in the treated plants. This novel study concludes that the essential oil of M. arvensis and P. graveolens holds potential for the development of effective and sustainable bioherbicides for the control of P. minor which can help in minimizing the risks associated with synthetic herbicides.