WEI Tian-jun,LI Bai-yun.Research on Different Technical Measures of Improving Fruit-setting Rate of Young Jujube in Gravel-sand Mulched Field in Ningxia[J].Northern Horticulture,2012,36(22):1-5.
提高宁夏旱砂地幼龄枣树坐果率的技术研究
- Title:
- Research on Different Technical Measures of Improving Fruit-setting Rate of Young Jujube in Gravel-sand Mulched Field in Ningxia
- 文章编号:
- 1001-0009(2012)22-0001-05
- Keywords:
- gravel-sand mulched field; ‘Tongxinyuanzao’ jujube; jujube shoot; pinching; ringing on trunk; Ningxia
- 分类号:
- S 665.1
- 文献标志码:
- A
- 摘要:
- 以种植在宁夏中卫市香山干旱山区压砂地的3 a生‘同心圆枣’树（行间套种西瓜，产量12 000~13 500 kg/hm2）为试材，研究了当年生枣头单纯摘心、‘新枣头+二次枝’双摘心、叶喷赤霉素以及主干环切等措施对幼龄枣树坐果率、坐果量、枣头及二次枝粗度和其它树体生长发育指标的影响。结果表明：盛花期枣头摘心提高坐果率的效果好于初花期或盛花初期；‘新枣头+二次枝保留2～4节’双摘心，或‘新枣头摘心+叶喷20 mg/kg赤霉素’，均具有明显的提高坐果率和单株坐果量的效果，但主干环切或‘新枣头摘心+主干环切’或‘新枣头+二次枝’双摘心+主干环切均更能极显著地提高坐果率和坐果量；在花期，‘新枣头+二次枝保留2～4节’双摘心能较明显地提高新枣头和二次枝的粗度。主干环切幼树的主干年增粗率明显小于新枣头摘心或‘新枣头+二次枝’双摘心的树。
- Abstract:
- At ‘Xiangshan’ mountain arid areas in the middle Ningxia，the effects of pinching off jujube shoots，pinching off both jujube shoots and the secondary shoots，gibberellins spraying，ringing on trunk on fruit-setting rate，fruit numbers，jujube shoot and secondary shoot thickness，and other indexes of jujube tree vegetable growth 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 12 000～13 500 kg/hm2.The results indicated that the treatment of pinching off jujube shoots at the full flowering stage was the best to improve fruit-setting rate during all flowering stage.Pinching off jujube shoots combined with the secondary shoots remaining 2～4 sections，pinching off jujube shoots combined with spraying 20 mg/kg gibberellins all obviously promoted fruit-setting rate and fruit number of individual.Especially，there were very significant effects when treated with ringing on trunk，pinching off jujube shoots combined with ringing on trunk，pinching off both jujube shoots and the secondary shoots combined with ringing on trunk.Jujube shoots and the secondary shoots thickness were increased with application of pinching off jujube shoots combined with the secondary shoots remaining 2～4 sections in flowering stage.At the rate of diameter of tree trunk increased yearly，pinching off jujube shoots，pinching off both jujube shoots and the secondary shoots were all significantly higher than that which treated with ringing on trunk.
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备注/Memo
第一作者简介：魏天军（1965-），男，硕士，研究员，现主要从事枣树品种选育及栽培技术和枣果贮藏保鲜技术的研究与示范工作。E-mail：wtjunnx@163.net.