What are the future perspectives in the development of allelochemicals for weed management?
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Future perspectives in the development of allelochemicals for weed management include the need for a multi-disciplinary and exhaustive approach to improve the reputation and uptake of allelopathy . Understanding the types of allelochemicals, their modes of action, and the factors influencing their production in plants can aid in the development of new and novel weed-control tactics . Incorporating allelopathy as a tool in an integrated weed management plan, such as through intercropping, crop rotation, cover crops, mulching, and allelopathic water extracts, can be an effective and environmentally friendly means of controlling weeds in field crops . Additionally, the use of natural products, such as terpenoids, as potential promoters of phytotoxic activity, can contribute to the sustainable management of invasive plants . Further research is needed to explore the allelopathic behavior of indole alkaloids and their degradation products in agricultural soils, as well as the role of soil in the phytotoxic effect of these compounds .
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What is the allelopathic potential of the plant?5 answersThe allelopathic potential of a plant refers to its ability to release chemicals into the environment that can affect the growth and development of other organisms. Several papers discuss the allelopathic potential of different plants. Hickman et al. examine the potential applications of allelopathy for weed management and highlight the need for a multi-disciplinary approach to optimize its benefits. Rahaman et al. focus on rice and its allelopathic potential, discussing the types of allelochemicals involved and their effects on weed species. Cordobés et al. assess the allelopathic potential of Imperata species and find that their aqueous leaf extracts inhibit seed germination and seedling growth in lettuce, tomato, and maize. Another paper discusses the Asteraceae family as a potential source of allelopathic plants, with genera like Acmella, Artemisia, and Bidens highlighted for their suppressive effects on herbicide-tolerant weeds. Gostynska et al. explore the allelopathic potential between Lemna minor and C. glomerata, suggesting that their chemical compounds may impact their development and competition in aquatic ecosystems.
What are the most important publications on allelopathy in weeds?4 answersAllelopathy in weeds has been the subject of several important publications. One study by Zhou et al. investigated the competitive strategy of the poisonous weed Elsholtzia densa Benth. on the Qinghai-Tibet Plateau (QTP). Another review by Sahrir et al. assessed the potential and effects of allelopathy in controlling weeds under laboratory, greenhouse, and field conditions. Additionally, a chapter by Serra et al. discussed the role of allelochemicals in persistent and invasive weeds, highlighting species such as Echium plantagineum and Centaurea solstitialis. Xu et al. conducted field trials and controlled experiments to investigate the impact of kin recognition on allelopathic interference in rice cultivars and paddy weeds. Finally, a review by Serra et al. focused specifically on the allelopathic potential of rice and its momilactones, highlighting the gaps in current understanding and the potential for sustainable weed management.
How allelopathy effects on neighboring plants?5 answersAllelopathy, the chemical interaction between plants, has been shown to have negative effects on neighboring plants. It has been found that the majority of invasive plant species produce allelochemicals that can negatively affect native plant performance. These allelopathic impacts are not limited to specific plant families, as allelopathy has been observed in 72% of the plant families surveyed. Additionally, plants can modulate their resistance to pests and pathogens in their neighborhood through molecules exchanged aboveground and belowground. The relationship between allelopathy and immunity has been highlighted as an intriguing area for further investigation. Overall, allelopathy has been found to reduce plant performance by 25%, with the effects varying depending on the method of allelopathy application and the concentration of allelopathic compounds. Native plants may be particularly susceptible to the negative effects of allelopathy from naturalized alien plants.
How allelochemicals affect stomatal conductance?5 answersAllelochemicals have been found to affect stomatal conductance in plants. Research has shown that increasing concentrations of carbonyl sulfide (COS) can enhance stomatal conductance in most plants examined, and this enhancement is mediated by carbonic anhydrase (CA) and may involve hydrogen sulfide production. Additionally, the plant hormone abscisic acid (ABA) has been found to directly mediate stomatal closure and decrease leaf hydraulic conductance (Kleaf) upstream of the stomata. Furthermore, exposure to elevated ozone (O3) has been shown to cause differential changes in photosynthesis and stomatal conductance in tulip poplar, and adjusting stomatal conductance in addition to photosynthesis improved the ability to predict both responses to O3. The dynamics of mesophyll conductance (gm) have also been studied, and it was found that gm imposes a smaller limitation on photosynthesis compared to stomatal conductance and biochemical processes. Overall, these studies highlight the complex interactions between allelochemicals and stomatal conductance in plants.
Can stomatal conductance affected by allelochemicals?4 answersStomatal conductance can be affected by allelochemicals.