nm试剂对枣果实裂果及质量的影响

Effects of nm Reagent on Dehiscent Fruit and Quality of Jujube

摘要: 多年来，枣果实成熟期遇到雨水开裂，严重影响枣的品质及农民的生产积极性，给枣农及当地经济带来很大的损失。本研究以陕北主栽品种木枣为材料，通过对枣果实和叶面定期喷洒不同浓度nm试剂，实地和实验室调查分析nm试剂对枣裂果及枣果大小和重量的影响。结果表明：1) 不同浓度nm试剂的喷施，可大大降低裂果率，有效减少裂果的发生，但不同处理间差异并不显著；2) 不同浓度nm试剂的喷施，可增大枣果横径，其中nm-2、nm-3处理效果最好；3) nm-2、nm-3、nm-4处理可增大枣果纵径；4) 可增大枣果的重量，nm-2浓度水平效果较好。总之，不同浓度nm试剂的处理，除了具有可观的防裂效果，还可从一定程度提高枣果产量，既改良了品质又提高了产量。其中，nm-2浓度水平效果最好，推荐该浓度试剂在生产上应用推广。

Abstract: Over the years, the phenomenon of dehiscence dates in the mature stage because of rainfall was serious in jujube. It has seriously affected the quality of the date and the enthusiasm of the farm-ers, which has caused great losses to peasant and local economy. This study is based on “Muzao” which is the main variety of jujube in northern Shaanxi. First of all, the different concentrations of nm reagent were used by means of periodically spraying on the fruit and leaf surface; after that, the effects of nm reagent on the size and weight of jujube fruit and dehiscent fruit were analyzed. The results were listed as follows: 1) The spraying of different concentrations of nm reagents can greatly reduce dehiscent fruit rate, but have not significant difference between different concentration; 2) The spraying of different concentrations of nm reagents can increase the transverse diameter of jujube fruit, and the treatment effect of nm-2 and nm-3 was the best; 3) The treatment level of nm-2, nm-3 and nm- 4 can increase the vertical diameter of jujube fruit; 4) The spraying of different concentration of nm reagents can increase the weight of jujube fruit, and the level of nm-2 concentration is better. In conclusion, the spraying of different concentrations of nm reagents has improved both the quality and the output. Among the different levels of concentration, the level of nm-2 was the best, and it is recommended to be applied to production.