库尔勒香梨辐射诱变枝条的果实品质比较分析  

Comparative Analysis of Fruit Quality of Branches of Radio-Inducing Mutation for Korla Fragrant Pear

作　　者：李杰[1] 覃伟铭 赵菁 李龙飞 陈月 李疆[1] 

机构地区：[1]新疆农业大学林学与园艺学院,乌鲁木齐830052 [2]巴音郭楞蒙古自治州沙依东园艺场果树研究所,新疆库尔勒841000

出　　处：《中国农学通报》2014年第19期180-184,共5页Chinese Agricultural Science Bulletin

基　　金：国家林业公益性行业科研专项"新疆特色林果提质增效关键技术研究与示范"(201304701-1);新疆自治区"十二五"科技重大专项课题"新疆特色果树种质资源利用技术研究与示范"(201130102-1);新疆自治区果树学重点学科基金"果树学"(201107);国家果树瓜类改良中心建设项目"新疆分中心"(20111908)

摘　　要：对库尔勒香梨枝条经辐射诱变后所结果实的品质进行综合比较,旨在为库尔勒香梨果实品质改良提供理论依据和实践指导,为培育香梨优良品种提供一条新的途径。以库尔勒香梨辐射诱变枝条所结果实为试验材料,研究不同辐射剂量处理后果实的外观及内在品质指标的差异性。结果表明:剂量为20 Gy时,休眠枝与萌动枝所结果实的石细胞、可溶性糖和可溶性固形物含量差异不显著,糖酸比表明休眠枝所结果实最甜;剂量为30 Gy时,休眠枝的果实含水量最高,萌动枝的果实石细胞含量最高,休眠枝与萌动枝果实的可溶性糖与可溶性固形物含量差异不显著,萌动枝果实的Vc和可滴定酸含量显著高于休眠枝;剂量为40 Gy的果实石细胞含量最少,肉质细腻,可溶性糖含量高,富含维生素C,果味较甜,商品性较高。辐射诱变枝条的果实品质有所提高,其中剂量为40Gy的辐射处理效果最好。Making a comprehensive comparison of Korla fragrant pear＇s fruit quality after branches radiated.We were aimed at improvement the fruit quality for provide theoretical basis and practice guidance, andprovide a new way for cultivate good varieties of fragrant pear. The Korla fragrant pear radiated mutationbranches fruit as the experimental material, research the differences between the appearance and internal quality index of the pear fruit with different doses of radiation treated. The results showed that when the dosewas 20 Gy, there were no significant differences among the dormant branches and bud branches in the stonecell content, soluble sugar, soluble solids. Sugar acid ratio indicates that the fruit of dormant branches were thesweetest. The fruit of dormant branches had the highest water content in 30 Gy while had the highest stone cellcontent in bud branches. There were no significant differences in soluble sugar and soluble solids contentamong the fruit of dormant branches and bud branches. Germination was significantly higher than that ofdormant branches in fruits＇ Vc and titratable acid content. The dose of 40 Gy had the lowest stone cell content,higher content of soluble sugar and vitamin C. Its fruit was sweeter. It had a higher fruit quality. The fruitquality of radiation induced mutation branches had improved. Radiation treatment had the best effect was the dose of 40Gy.

关 键 词：库尔勒香梨 辐射诱变 果实品质 

分 类 号：S661.2[农业科学—果树学]