Biological Effects of Foliage Spraying Boron on Pisum Sativum L.

In different growth period,we spray different concentraction mangic acid solution on the surface of leaves of Pisum Sativum L.. The result show that the activity of SOD, CAT is promoted,the content of MDA and the speed of O~(·-)_2 production are reduced in seedling, buding and flowering period.We find that if spraying 0.1%～0.2% mangic acid solution on the surface of leaves in seedling, buding and flowering period,the production of Pisum Sativum L.was promoted.