关键词: 亲本, 亲本

Abstract:

At ‘Xiangshan’ Mountain arid areas in the middle Ningxia, the effects of both water absorbent and supplemental fertilizer-water on soil water contents, fruit-setting rate, yields, quality, water use efficiency and vegetable growth of jujube trees were investigated under the field condition, by using the three-year-old ‘Tongxinyuanzao’ jujube trees with plant and row placing being 3 m×8 m while intercropping watermelon which the yield of was 12 000 kg-13 500 kg per hm2. The results indicated that the content of soil moisture in the depth of 40 cm was increased by 2.14% (absolute value) from May to October after the application of water absorbent with 30-60 g per plant and supplementary twice fertilizer-water (125 kg of total number per tree) on mid-June, mid-July, respectively. Meanwhile, the leaf area, chlorophyll content, fruit-setting rate, fruit number of individual tree, yield per plant, mean fresh weight of fruit, water use efficiency and ratio of total soluble solids content to titratable acid content were enhanced by 4.1%-50.5%, 44.9%(compared with that of naturally growing trees), 9.5%-27.8%, 29.5%-33.2%, 37.9%-51.1%, 0.5 g-2.1 g, 33.3%-46.7% and 23.0%-41.8%, respectively. Furthermore, the content of ascorbic acid, new branch thickness and rate of diameter of tree trunk increased all improved slightly.