Abstract
As a Chinese traditional food,Toona sinensis bud vegetable has rich nutrition and much benefit for human body health. Stump is a important method to improve Toona sinensis bud vegetable yield and actualize dwarf and close planting. Up to now,the problem of which is the best stump height for high vegetable yield and good commodity character is not resolved. This paper combined with Toona sinensis low production forest improvement project in Taixing City of Jiangsu Provence in China,objective to provide scientific evidence and reference for Toona sinensis high yeild cultivation. Using two-year-old Toona sinensis seedlings,the effects of different stump heights (0,20,40,60,and 80 cm) on bud vegetable yield and commodity characteristics with field coppice management were studied. Experimental design was one singel factor random repeated test(three times repeated,one repeat used fifty per plant). Results with stumped seedlings showed (1) significant differences (P<0.05) for both terminal bud and lateral bud vegetable yield when compared to content of soluble sugars,soluble proteins,vitamin C,and amino acids. Also,sensory quality of the lateral bud had significant differences (P = 0.004),but the terminal bud did not (P = 0.211). (2) For high bud vegetable yield and sensory quality,the 60 cm stump height treatment was best with a 22.3% greater yield than the 0 cm stump height. (3) Considering terminal bud vegetable nutritional components,the 0 and 20 cm stump height treatments had mostly higher soluble sugar content and vitamin C conten;whereas the 60 and 80 cm stump height treatments had higher soluble protein content and amino acid content.[Ch,3 fig. 18 ref.]
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