不同栽培模式对枣树生长量及光合参数日变化的影响

Comparison of Daily Changes of Growth and Photosynthetic Parameters of Jujube Tree under Different Cultivation Patterns

以1年生‘蜂蜜罐’枣树为试材,研究地下套盆、地上不套盆控根容器栽培及大田栽培条件下枣树的生长发育情况和主要光合参数,分析不同栽培模式对‘蜂蜜罐’品种枣树生长状况及光合特性的影响。结果表明:容器栽培枣树的株高、干径和二次枝长都显著高于大田苗,地下套盆栽培枣树的株高、干径和二次枝长和二次枝粗等生长量指标在3个处理中表现最好,净光合速率从全天来看也相对较高。综合来看,地下套盆栽培模式相对地上容器栽培和大田栽培更有利于幼龄‘蜂蜜罐’枣树的生长发育,并能促进其光合作用。

Taking 1-year-old‘honey pot’jujube as test material,the growth and main photosynthetic parameters of jujube were studied under the conditions of underground potting root control container cultivation,above-ground root control container cultivation and field cultivation,and the effects of different cultivation modes on the growth status and photosynthetic characteristics of‘honey pot’jujube were analyzed.The results showed that the plant height,trunk diameter and secondary branch length of container cultivation jujube were significantly higher than those of field seedlings.The growth indexes such as plant height,trunk diameter,secondary branch length and secondary branch diameter of jujube cultivated in underground pots were the best among the three treatments,and the net photosynthetic rate was relatively high in the whole day.In conclusion,compared with the above-ground container cultivation and field cultivation,the underground pot planting mode is more conducive to the growth and development of young‘honey pot’jujube trees,and can promote its photosynthesis.