Abstract: This paper researched two types of zucchini, semi-bush and bush.Each type selected two varieties.The experiment studied the relationship between dynamic process of leaf and stem growth and dry matter accumulation and distribution.Three years results showed, the growth of leaf and stem were " S" curve and expressed time function in different planting years; In fruiting period, the difference between the types was appeared and gradually abvious, the leaf growth rate, the stem growth rate and leaf area of single plant in semi-bush zucchini were 1.3,2.1 and 1.7 times than bush; The dry matter accumulation rate of semi-bush is 1.2 times than bush, the ratio of dry matter in semi-bush fruit is from 24% to 28%,but bush zucchini is from 27% to 38%.The exess distribution of fruit induced exhaustion of vegetable growth earlier and the yield difference reached to 28%.It indicated that the dry matter accumulation and allocation abviously effected the vegetable growth and yield．

Key words: Zucchini, Dynamic growth, Dry matter accumulation and distribution

CLC Number: 

• S642.6