栒子对苹果幼树生育影响的研究

本文研究了毛叶水栒子,水栒子与M_9的枝条组织解剖构造和砧木对甜黄魁、金冠及红星苹果幼树枝、叶、果实的生长动态、树体大小、叶片组织解剖构造和叶内氮、磷、钾养分含量的影响以及外界条件的作用。研究结果证明,毛叶水栒子和水栒子是苹果的极矮化砧,嫁接在栒子和M_9上的苹果幼树生育期有显著差异,这种差异与砧木的组织解剖构造有一定相关性,同时证明栒子较M_9抗旱。

THE INFLUENCE OF COTONEASTERS ON THE GROWTH AND DEVELOPMENT OF YOUNG APPLE TREES

The influence of three different rootstocks (Cotoneaster submutiflorus Popov, Cotoueaster multiflorus Buuge aud M9) on the growth rhythm of shoots, leaves and fruits of three different young apple trees (Tiau huang kui, Golden Delicious and Starking), and the influence of the three rootstocks on tree size, foliar anatomic structure, and the nitrogen, phosphorus and potassium contents in apple leaves were being investigated at the orchard of Shanxi Agricultural University during the years 1979—1981, with the effects of environmental conditions and the correlation between the anatomical structure of rootstocks and the vigour of trees being studied at the same time. The results showed that both Cotoneaster submultiflorus Popov and Cotoneaster multiflorus Bunge are the most dwarfing rootstocks for apple trees, and have, in addition, the advantage of drought resistance. Significant difference has been found in growing season between young apple trees on the mentioned Cotoneasters and those on M9. The difference is believed to havea certain correlation with the anatomical structure of the rootstocks.