Abstract:

Abstract: Effect of different MW CTS on the seed germination, growth, yield and quality of tomato cultivar “Hezuo 908 ” were studied. The result showed: ①The germination percentage, germination index and vitality index were up to the maximum when the seed was treated with CTS7 and CTS3 at the concentration of 0.625 mg/ml and 1.25 mg/ml respectively. And the effect of middle molecular was better than the other chitosans on the seed germination. ②The fresh weight and length of roots were no significant difference when the seed was treated with chitoan, but the fresh weight and length of seeding were significant difference. The stimulate effect was the best when the seeding were sprayed with CTS7 and CTS3 at the concentration of 1.25 mg/ml and 2.5 mg/ml, respectively. ③Chitosan could make the soluble solid content, protein content and vitamin C content increase, and total acidity decrease. Key words: Chitosan; Lycopersicon esculentum Mill; Seed germination; Growth; Yield and quality