枣果水分代谢变化与裂果之间的关系研究  

The Relationship between Water Metabolic Changes and Fruit Cracking in Jujube

作　　者：黑淑梅[1,2] 曹娟云 冯晓东[1,2] 常海飞[1,2] 

机构地区：[1]延安大学生命科学学院,陕西省红枣重点实验室,陕西延安716000 [2]陕西省区域生物资源保育与利用工程技术研究中心,陕西延安716000

出　　处：《云南师范大学学报（自然科学版）》2016年第1期62-65,共4页Journal of Yunnan Normal University:Natural Sciences Edition

基　　金：陕西省教育厅自然科学研究计划资助项目(12JK0834);陕西省高水平大学建设专项资金资助项目(2012SXTS06);陕西省农业攻关计划资助项目(2012K01-02);延安大学科研计划资助项目(YDQ2013-18)

摘　　要：采用浸水诱裂法研究了四不像枣、金丝小枣、梨枣和骏枣四种枣果分别浸水4、8、16、24、32、48、72h后的裂果敏感性差异.研究结果表明:随着浸水时间的增加,裂果率和裂果指数均增大.浸水72h,四不像枣的裂果率和裂果指数最大,分别达到90%和0.93;其次是金丝小枣,为50%和0.41;再次是梨枣,为43%和0.33;骏枣最低,为37%和0.27.四种枣果的吸水率随着浸水时间的增加而增大,均在48h达到最大值;吸水率大小为:四不像枣(20.9%)>金丝小枣(18.4%)>梨枣(12.5%)>骏枣(8.2%).四种枣果的水势变化与浸水时间之间无明显规律:四不像枣为"W"形,金丝小枣为"倒N"形,梨枣和骏枣为"N"形.相关性分析显示,裂果率和吸水率之间的相关系数r值为0.89,即枣裂果敏感性与吸水率呈正相关;裂果率和水势之间的相关系数r值为-0.04,即与水势无关.The difference of jujube fruit cracking sensitivities in four cultivars（Sibuxiangzao,jins- ixiaozao,lizao and j unzao）were examined with the method of cracking induced by different immer- sion time. The results showed that the fruit cracking rate and index of four jujube cuhivars were increased with immersion time increasing. When immersed for 72 h,the fruit cracking rate and in- dex of Sibuxiangzao was the biggest,which was 90% and 0.93. Jinsixiaozao was the second one, 50% and 0. 41. Junzao was the smallest, 37% and 0. 27. Lizao was between Jinsixiaozao and Junzao,43% and 0.33. In addition,the water absorption rate of four jujube fruits were increased with immersion time increasing,and the maximum water absorption rate all reached at 48 h im- mersion. The water absorption rate of the four tested iujube fruit ranks as Sibuxiangzao（20.9%） 〉Jinsixiaozao（18. 4%）〉Llizao（12.5%）〉Junzao（8. 2%）. However, there was no obvious rule be- tween water potential of fruit and immersion. The correlation analysis showed that the difference of jujube fruit cracking sensitivities presented positive relation to water absorption rate（r=0. 89）, and no relation to water potential（r=-0.04）.

关 键 词：枣 裂果率 吸水率 水势 

分 类 号：Q945[生物学—植物学]