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<p>Plant invasion is a major concern for ecologists and agriculturists. Early detection of potential invaders (weeds) would save energy and resources that would otherwise be used to tackle them after they had spread. A study was initiated at the ICAR-Indian Agricultural Research Institute, New Delhi, on the basis of the “early detection and rapid response (EDRR)” strategy. For this study, we choose the little mallow (<i>Malva parviflora</i> L.), a newly introduced Malvaceae family weed in the agricultural fields of Delhi and adjoining regions of India. The above-ground allometric parameters of&#xa0;<i>M. parviflora</i> populations in the main field and the field boundary were compared. The findings revealed that the EDRR approaches established by this study provided useful information to corroborate the weed species' invasion. The canopy diameter, plant height, and the number of leaves <i>M. parviflora</i> differed between the field boundaries (25.72&#xa0;cm, 24.40&#xa0;cm, 58.97, respectively) and main field (12.79&#xa0;cm, 49.08&#xa0;cm, 18.85, respectively) populations in all three locations, except the canopy diameter was comparable in location 2. Furthermore, neighborhood analysis showed that the <i>M. parviflora</i> had greater acclimatization with a variety of neighbors (38 plant species), i.e., legumes, noxious weeds, and seasonal dominant weeds. <i>Malva parviflora</i> has become a dominant weed along the field boundary. However, it has the potential to spread to the main field and become a serious weed in winter crops in the future. The EDRR methodologies developed in this study can be used to assess the invasion of new weeds in a variety of habitats.</p>

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Investigating key biological traits of Malva parviflora influencing its competitive invasion in wheat crops

  • 期刊论文

  • 发表日期：

    2025年11月10日

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  • Prabhu Govindasamy,
  • Watiyangla Kichu,
  • Rishi Raj,
  • Tapas Kumar Das,
  • Venkadasamy Govindasamy,
  • Ubaldo Torres,
  • Muthukumar Bagavathiannan

摘要

Plant invasion is a major concern for ecologists and agriculturists. Early detection of potential invaders (weeds) would save energy and resources that would otherwise be used to tackle them after they had spread. A study was initiated at the ICAR-Indian Agricultural Research Institute, New Delhi, on the basis of the “early detection and rapid response (EDRR)” strategy. For this study, we choose the little mallow (Malva parviflora L.), a newly introduced Malvaceae family weed in the agricultural fields of Delhi and adjoining regions of India. The above-ground allometric parameters of M. parviflora populations in the main field and the field boundary were compared. The findings revealed that the EDRR approaches established by this study provided useful information to corroborate the weed species' invasion. The canopy diameter, plant height, and the number of leaves M. parviflora differed between the field boundaries (25.72 cm, 24.40 cm, 58.97, respectively) and main field (12.79 cm, 49.08 cm, 18.85, respectively) populations in all three locations, except the canopy diameter was comparable in location 2. Furthermore, neighborhood analysis showed that the M. parviflora had greater acclimatization with a variety of neighbors (38 plant species), i.e., legumes, noxious weeds, and seasonal dominant weeds. Malva parviflora has become a dominant weed along the field boundary. However, it has the potential to spread to the main field and become a serious weed in winter crops in the future. The EDRR methodologies developed in this study can be used to assess the invasion of new weeds in a variety of habitats.