限根栽培中根系垂直深度和土壤质地对苹果树体发育的影响

Effects of Vertical Depth in Root Restriction Culture and Soil Texture on Apple Tree Development

采用根窖模拟,研究根系垂直深度和土壤质地对红富士/平邑甜茶苹果地上、地下部生长发育的影响。结果表明,垂直深度和土壤质地对树体根系和地上部生长发育均有较大影响,随垂直深度的增加总根重、吸收根重、生长根重、花芽数和花芽重呈逐渐增加趋势。相对于粘土而言,壤土更有利于树体发育。

The effects of the root vertical depth and soil texture on the above and under ground growth and development of Fuji/Malus hupenhensis were studied by root box simulation. The results showed that both vertical depth and soil texture had great effects on the growth and development of root and above - ground parts. The weights of the total roots, the absorbing roots and the growing roots, the number and weight of flower buds increased gradually with the increase of root vertical depth. Compared with clay soil, the loam soil was more beneficial to the apple tree development.