摘要
通过对‘灵武长枣’果实裂果特性的研究,以期为‘灵武长枣’生产实践提供理论依据。采集大田10年生‘灵武长枣’果实,在室内采用果实浸泡法,测定不同着色程度和大小果实的吸水量、吸水率、裂果率、裂果指数等,研究‘灵武长枣’果实裂果特征。结果表明,随着浸水时间的延长,‘灵武长枣’果实的吸水量、吸水率呈下降趋势,而裂果率和裂果指数呈上升趋势。‘灵武长枣’全红果总吸水量比75%着色果的多、果实裂果率大,裂果指数是75%着色果的1.49倍,裂果严重。4种果实大小等级‘灵武长枣’果实的总吸水量顺序为:一等果>二等果>三等果>四等果;三、四等果的裂果率大于一、二等果,而一等果的裂果指数最大(0.664)。果实裂果发生与其水分吸收密切相关,果实吸水的关键时期在前24 h。全红果与果个大的果实吸水量大、裂果程度严重。
A study on fruit-cracking characteristics of Zizyphus jujube‘Lingwuchangzao＇is made to provide atheoretical support for its production practice. We collected a batch of 10-year Zizyphus jujube‘Lingwuchangzao＇from the field and adopted the fruit soaking method to measure water absorption, waterabsorption rate, fruit cracking rate, cracking index for the fruits with different pigmentation degrees and sizes.The results showed that with the soaking time extended, the water absorption and water absorption rate tendedto decline, while the fruit cracking rate and cracking index showed a rising trend. The total water absorption,fruit cracking rate and cracking index of the totally red jujubes was higher than the 75% ones＇, while thetotally red jujubes cracked severely, whose cracking index was 1.49 times of the 75% ones＇. Among the foursize classes of Zizyphus jujube‘Lingwuchangzao＇, the ranking of the total water absorption was the first-class,the second-class, the third-class, and the fourth-class. In addition, the cracking rates of the third-class andthe fourth-class jujubes were higher than that of the first-class and second-class jujubes＇, while the first-class jujubes＇ cracking index was the highest, which was 0.664. Viewing from the experiment data, fruit cracking and water absorption were closely related, and the first 24 h was the critical period for waterabsorption. In additional, the totally red fruits＇ water absorption and fruit cracking rate were very considerable.
出处
《中国农学通报》
2018年第1期75-80,共6页
Chinese Agricultural Science Bulletin
基金
宁夏大学研究生创新项目(GIP201655)
关键词
'灵武长枣’
吸水量
吸水率
裂果指数
裂果率
Zizyphus jujube ＇Lingwuchangzao＇
water absorption
water absorption rate
cracking index
fruit cracking rate
