摘要
本文对近些年来有关钾营养与植物病害关系的研究进行综述。主要从钾对酚代谢、碳、氮代谢及其活性氧代谢调控的角度,评述钾素营养提高植物抗病性的机理;同时讨论了钾肥的施用方式、钾肥形态、施用量、土壤本身钾素状况等共同影响钾素对植物的抗病性及其可能机理。最后提出这一研究领域存在的若干问题。
Potassium nutrition status not only affects plant growth and development, but also plays an important role in plant resistance to diseases. This review paper summarized recent research advances in plant resistance to diseases in relation to potassium nutrition status. Improved potassium nutrition can strengthen plant resistance to diseases, by regulating various plant physiological metabolism pathways, mainly phenolic metabolism, carbon and nitrogen metabolism, and active oxygen metabolism. Potassium fertilizer is a main source to provide potassium nutrient to plant. Potassium fertilizer placement, types of potassium fertilizers, application rates, soil K status, etc. affect susceptibility of plant to diseases. Possible mechanisms associated with plant disease-resistance affected by potassium nutrition are discussed. Problems existing in this research field are also mentioned in this paper. Understanding the role of potassium nutrition in plant resistance to diseases will help to improve plant disease control and soil fertility managements.
出处
《植物营养与肥料学报》
CAS
CSCD
北大核心
2006年第3期445-450,共6页
Journal of Plant Nutrition and Fertilizers
基金
吉林省科技发展计划项目(2004BA520A09-4-1)资助
