Effect of Foliar-spraying 6-BA on the Growth and Physiological and Biochemical Indexes of Sweet Pepper Seedlings under High Temperature Stress Effects of Grafting on the Improvement of Heat Tolerance and AntioxidantAbilities in Leaves of Chrysanthemum The impact of herbicides on production and antioxidant properties of oats Effects of Grafting on the Improvement of Heat Tolerance and AntioxidantAbilities in Leaves of Chrysanthemum Effects of Meloidogyne incognita on scavenging system of reactive oxygen species in tomato seedlings grafted with different rootstocks