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首页> 外文期刊>Cogent Environmental Science >Arbuscular mycorrhizal fungi and potassium fertilizer as plant biostimulants and alternative research for enhancing plants adaptation to drought stress: Opportunities for enhancing drought tolerance in cocoa (Theobroma cacao L.)
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Arbuscular mycorrhizal fungi and potassium fertilizer as plant biostimulants and alternative research for enhancing plants adaptation to drought stress: Opportunities for enhancing drought tolerance in cocoa (Theobroma cacao L.)

机译:丛枝菌根真菌和钾肥作为植物生物诱导剂和增强植物适应旱灾的替代研究:加强Cocoa(Cacrao L.)的干旱耐受的机会

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Drought is the most critical abiotic threat to cocoa growth and productivity. The purpose of this review is to provide an overview of the recent research and developments which have contributed to the biostimulant properties of Arbuscular Mycorrhizal Fungi (AMF) and Potassium (K) fertilizer, and suggest the best research strategies for the application of these biostimulants to enhance cocoa growth and adaptation to drought conditions. We identified multiple services provided by AMF and K fertilizers: increase nutrients uptake, activating nitrate reductase, regulating photosynthesis and stomata conductance, improve water use efficiency, root growth etc. These multiple services could be efficiently exploited to enhance drought resilience and improve the survival rate of cocoa. Therefore, there is the need for further studies to assess the effectiveness in using either K or AMF or their combination in building the drought resilience of cocoa at the seedling phase; understand the rates of potassium fertilizers that will improve the physical (e.g. cell wall turgor, roots growth) and biochemical (e.g. Proline, polyamines, enzymatic) characteristics of cocoa seedlings to alleviate water stress. In addition, develop better K recommendations based on soil types, location specific and current cocoa varieties; understand the role of K and or AMF in enhancing drought resilience in cocoa under saline conditions and breeding cocoa genotypes with higher efficiency in K utilization and/or AMF colonization. Eventually, AMF and K can be developed as biostimulants as additional and complementary strategies to be used alongside others to improve cocoa drought resilience.
机译:干旱是对可可增长和生产力最关键的非生物威胁。本综述的目的是概述最近的研发,这些研究和开发有助于丛枝菌根真菌(AMF)和钾肥肥料的生物染色性质,并提出了应用这些生物刺激剂的最佳研究策略增强可可生长和适应干旱条件。我们确定了AMF和K肥料提供的多项服务:增加营养素吸收,激活硝酸盐还原酶,调节光合作用和气孔电导,提高水使用效率,根本生长等。这些多种服务可以有效地利用,增强干旱弹性,提高生存率可可。因此,需要进一步的研究来评估使用K或AMF的有效性或其组合在幼苗阶段构建可可的干旱弹性;了解将改善物理(例如细胞壁Turgor,根生长)和生物化学(例如脯氨酸,多胺,酶,酶)特征来缓解水分胁迫的钾肥率。此外,基于土壤类型,位置特定和当前可可品种开发更好的K建议;了解K和或AMF在盐水条件下加强可可的干旱弹性,并以效率培育k利用率和/或amf定植的效率培育可可基因型。最终,AMF和K可以作为生物诱导剂作为额外的和互补策略,以改善可可旱涝的可可滋润。

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