新疆核桃与域外核桃品种果实总多酚差异分析

Analysis of Fruit Total Polyphenol Differences Between Xinjiang Walnut and Extra-territorial Walnut Varieties

以不同种质的核桃、新疆地方核桃品种、新疆不同主栽区的核桃、不同时期的核桃、核桃的不同部位为试材,采用方差分析的方法,比较不同核桃及核桃不同部位中总酚含量的差异,以期为选育总多酚含量高的核桃品种提供参考依据。结果表明:1)在不同种质中,“香玲”(山东核桃)种仁种皮总多酚含量显著高于其他品种;种仁总多酚含量上表现依次为“大凉山”>“新新2号”>“香玲”>“温185”>“美国黑核桃”>“狮子头”>“娘青”>“碧根果”。2)新疆地方品种中“新乌417”种仁总多酚含量为7.84 mg·g^(-1),显著高于其他地方品种。3)在新疆不同主栽区中,种仁中总多酚含量在阿克苏和和田地区表现显著高于其他地区。4)在不同部位中,青皮中总多酚在7月6日到达高峰,而种仁种皮和种仁中总多酚含量在整个生育期均逐渐增加;各部位总酚含量表现出种仁种皮>种仁>青皮。5)和田果实不同着生方位之间存在显著差异,“温185”种仁着生于北部的总多酚含量最高,“新新2号”着生于南部的总多酚含量最高。综上所述,不同地区、不同果实部位、不同品种及不同生长方位的核桃果实均存在差异性。

Taking walnuts of different germplasm,local walnut varieties in Xinjiang,walnuts of different main planting areas in Xinjiang,walnuts of different periods,and different parts of walnuts as test materials,ANOVA was used to compare the differences in total phenol content in different walnuts and different parts of walnuts,in order to provide reference for the selection and breeding of walnut varieties with higher total polyphenol content.The results showed that,1)among different germplasm:the total polyphenol content of seed kernel seed coat of‘Xiangling’(Shandong walnut)was significantly higher than that of other varieties;the performance on the total polyphenol content of seed kernel seed coat was in the following order,‘Dalianshan’>‘Xinxin2’>‘Xiangling’>‘Wen 185’>‘American Black Walnut’>‘Lionhead’>‘Niangqing’>‘Bigenguo’.2)The total polyphenol of seed kernel in Xinjiang local varieties of‘Xinwu 417’,7.84 mg·g^(-1),was significantly higher than that of other local varieties.3)Among different main planting areas in Xinjiang,total polyphenol content in seed kernel showed significantly higher in Aksu and Hotan areas than other areas.4)Among different parts,total polyphenols in green peels reached the peak on July 6th,while total polyphenol content in seed kernel seed peels and seed kernels increased gradually throughout the reproductive period;total phenol content in each part showed:seed kernel seed peels>seed kernels>green peels.5)Significant differences existed between different bearing orientations of walnuts fruits in Hotan area,with‘Wen 185’seed kernels bearing the highest total polyphenol content in the north and‘Xinxin 2’bearing the highest total polyphenol content in the south.In summary,there were differences in walnut fruits from different regions,different fruit parts,different varieties and different growth orientations.