Salicylic Acid (SA)
Salicylic acid is a metabolite of phenylalanine and a new type of natural phenolic plant regulator. It is an important endogenous signal molecule that can activate plant allergic reactions and system-acquired resistance. Physiological effects in plants are also widely manifested in the regulation of physiological processes such as plant growth, development, maturity, and senescence, and in the induction of anti-stress reactions such as salt resistance, drought resistance, low temperature resistance, ultraviolet resistance, and heavy metal resistance.
Uses & Benefits:
1) Improve plant resistance - Treatment with 50-300mg / L salicylic acid solution at the seedling stage can improve the antioxidant capacity of tomato seedlings, increase the content of soluble proteins and soluble sugars, and enhance root vitality, thereby enhancing tomato's resistance to low temperature, drought, salt stress and heavy metals. Ionic tolerance.
2) Improve fruit storage and freshness - Soaking apple fruit with 150mg / L salicylic acid for 20 minutes after harvesting can promote defense enzyme activity, disease resistance-related protein activity increase, reduce the degree of membrane lipid peroxidation, increase the content of disease-resistant substances, and increase apples against gray mold Disease resistance.
3) Delay fruit ripening and senescence - Spraying Winter jujube with 20mg / L salicylic acid 3 times before and after harvesting can increase the content of endogenous hormones GA, IAA and ZR of Winter jujube date, reduce the ABA content, keep the Winter jujube date with high soluble sugar and vitamin C content and delay the aging process of Winter jujube .
4) Other physiological effects - Soaking seeds with 10 mg / L salicylic acid for 40 hours is beneficial to cucumber seed germination and seedling growth. If used in combination with organic amines, it can promote each other, make the seeds germinate quickly, have a high degree of uniformity, and promote the chlorophyll content and root vigor of seedlings.