Abiotic Plant Disorders: Challenges and Opportunities

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Pest and Disease Management".

Deadline for manuscript submissions: closed (30 September 2023) | Viewed by 3083

Special Issue Editors


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Guest Editor
Institute for Future Environment, Queensland University of Technology, Brisbane, Australia
Interests: rice; pulses; abiotic and biotic stress; plant physiology; genome editing; nutritional profile analysis; iron biofortification; programmed cell death

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Guest Editor
Queensland Alliance for Agriculture and Food Innovation (QAAFI), The University of Queensland, Gatton, QLD 4343, Australia
Interests: weed biology; seed biology; IWM; non-chemical approaches; crop competition; cultural approaches
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Special Issue Information

Dear Colleagues,

Plants play an important role in keeping our planet green and habitable, and providing food, fibre, medicine, and daily materials for more than 8 billion people in the world. However, during their life cycle, plants can be affected by several non-living factors known as abiotic stress. Abiotic stress can cause growth retardation, yield reduction/loss and even the death of plants. Under the current climate change scenarios, abiotic stress is predicted to occur more frequently. Therefore, understanding how plants cope with the effects of abiotic stress and solutions for overcoming abiotic-related disorders could contribute to strategies for food security and the mitigation of climate change.

This Special Issue seeks contributions about the challenges and opportunities associated with plant disorders caused by various abiotic stresses, including drought, salinity, heat, cold, water logging, herbicides, heavy metals, and nutrient deficiency. The focus of this Special Issue is on morphological, physiological, and molecular insights into the symptoms, signs, and responses of plant disorders, as well as solutions for enhancing tolerance to abiotic stress in plants. Reviews, perspectives, and research articles are welcome. We look forward to receiving your contribution. Please discuss with a Guest Editor if you are planning to submit a review or a perspective article.

Dr. Linh Thi My Hoang
Prof. Dr. Bhagirath S. Chauhan
Guest Editors

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Keywords

  • abiotic stress
  • plant disorders
  • drought
  • salinity
  • heat
  • cold
  • water logging
  • herbicides
  • heavy metals
  • nutrient deficiency

Published Papers (1 paper)

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Research

9 pages, 694 KiB  
Article
Mungbean (Vigna radiata) Growth and Yield Response in Relation to Water Stress and Elevated Day/Night Temperature Conditions
by Gulshan Mahajan, Kylie Wenham and Bhagirath Singh Chauhan
Agronomy 2023, 13(10), 2546; https://0-doi-org.brum.beds.ac.uk/10.3390/agronomy13102546 - 03 Oct 2023
Cited by 1 | Viewed by 2718
Abstract
Information regarding the relative importance of elevated day/night-time temperatures combined with water stress on mungbean yield is limited. This study aimed to investigate the yield response of mungbean cultivars to different water stress and temperature regimes under controlled glasshouse conditions. Two mungbean cultivars, [...] Read more.
Information regarding the relative importance of elevated day/night-time temperatures combined with water stress on mungbean yield is limited. This study aimed to investigate the yield response of mungbean cultivars to different water stress and temperature regimes under controlled glasshouse conditions. Two mungbean cultivars, Celera II-AU and Jade-AU, were grown and evaluated under four temperature regimes with and without water stress, each replicated 10 times in a randomized complete block design. The four temperature regimes were as follows: (i) HTHT: Plants were consistently exposed to high day/high night temperatures (35/25 °C). (ii) LTHT: Plants experienced ambient day/ambient night temperatures (25/15 °C) for the first 35 days, followed by the HTHT environment. (iii) LTLT: Plants were maintained at ambient day/ambient night temperatures (25/15 °C) throughout the experiment. (iv) HTLT: Plants were subjected to high day/high night temperatures (35/25 °C) for the initial 35 days, followed by the LTLT environment. Under water stress conditions, mungbean yield declined significantly in the HTHT environment by 57% for Jade-AU and 76% for Celera II-AU compared to the LTLT environment. The highest seed yield (10.2 g plant−1 for Jade-AU and 11.4 g plant−1 for Celera II-AU) for both cultivars was observed when grown without water stress in the LTLT environment. However, yield decreased substantially when plants experienced combined heat and water stress during the reproductive stage (HTHT and LTHT environments). Without water stress, mungbean yield under the HTHT environment decreased by 30% for Jade-AU and 60% for Celera II-AU compared to the LTLT environment. Surprisingly, no significant difference in response to water stress was observed between the two cultivars. Furthermore, when grown under no-water stress and HTHT environments, the yield of Celera II-AU was reduced by 37% compared to Jade-AU. Similarly, a comparable response was seen between cultivars under no-water stress and LTHT environment. The results indicated that water and heat stress negatively affected mungbean seed yield. Moreover, it was observed that Jade-AU outperformed Celera II-AU regarding seed yield under heat-stress conditions. In conclusion, this study suggests that adjusting sowing time and selecting suitable heat-tolerant cultivars, such as Jade-AU, could enhance mungbean yield under heat and water stress conditions. The results demonstrate substantial impacts on mungbean productivity from changing climatic and water stress conditions and these findings can be utilized for improving mungbean productivity in dryland regions. Full article
(This article belongs to the Special Issue Abiotic Plant Disorders: Challenges and Opportunities)
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