دانلود کتاب نقش پتاسیم در استرس غیر زنده

Nutrient deficiency is a common problem in agricultural crops affecting plant growth and yield. It is required for various physiological and biochemical processes, and the deficiency up-regulates signalling molecules or phytohormones to initiate a cascade of reaction that increases nutrient uptake and helps in maintaining nutrient homeostasis. Neither deficiency nor excess of nutrients is good for plants, and therefore a proper balance is essential for maintaining their homeostasis and affecting plant performance. Among various factors affecting nutrient acquisition and maintaining its homeostasis in plants, hormones play a prominent role both under stress and non-stress conditions. Phytohormones may coordinate with each other to affect root system architecture that involves the root, environment and the hormones and eventually affects nutrient uptake.