低温对不同菠萝蜜种质资源光合生理特性的影响  

Effect of Low Temperature on Photosynthetic Physiological Characteristics of Different Artocarpus heterophyllus Lam.Germplasm Resources

作　　者：宋奇琦 朱鹏锦[1] 何江[1] 叶维雁 欧景莉[1] 唐秀观 李佳慧 程琴[1] 谭秦亮[1] 庞新华[1] 欧克纬[1] 卢业飞[1] SONG Qiqi;ZHU Pengjin;HE Jiang;YE Weiyan;OU Jingli;TANG Xiuguan;LI Jiahui;CHENG Qin;TAN Qinliang;PANG Xinhua;OU Kewei;LU Yefei(Guangxi Subtropical Crops Research Institute,Nanning,Guangxi 530001,China)

机构地区：[1]广西壮族自治区亚热带作物研究所,广西南宁530001

出　　处：《农业研究与应用》2021年第6期7-13,共7页Agricultural Research and Application

基　　金：广西科技计划重点研发项目(桂科AB21220003);广西特色水果产业科技先锋队(桂农科JZ202007)。

摘　　要：菠萝蜜是一种典型热带果树,有巨大的潜在开发前景。低温寒害已成为制约菠萝蜜产业健康可持续发展的关键问题,也是菠萝蜜耐寒品种选育及生理生态研究重点关注的焦点。为了研究低温寒害对菠萝蜜叶片光合作用能量耗散过程以及光合色素影响,通过连续的气温数据监测、表征观测、叶绿素荧光参数及光合色素分析,结果表明4个菠萝蜜种质资源耐寒性强弱依次是博白菠萝蜜(A)>湛江菠萝蜜(B)>马来西亚菠萝蜜(C)>泰国菠萝蜜(D),低温对不耐寒种质的光系统损伤较大,叶绿素荧光参数、叶绿素含量均明显较耐寒型种植低。研究耐寒型菠萝蜜种质光合生理如何响应低温的机理,将是选育耐寒新品种和寒害防控的重点方向。Artocarpus heterophyllus Lam.(Jackfruit)is a typical tropical fruit tree with great potential development value.Cold damage has become the key problem restricting the healthy and sustainable development of Jackfruit industry,and is also the focus of attention in breeding of cold-resistant variety and in physiological and ecological research of jackfruit.Based on continuous temperature data monitoring,characterization,chlorophyll fluorescence parameters and photosynthetic pigments analysis,the effect of chilling damage on the energy dissipation process and photosynthetic pigments of jackfruit leaves was studied.Results showed that the order of cold hardiness of the four jackfruit germplasm resources was GXRZBLM00051(A)>GXRZBLM00039(B)>GXRZBLM00006(C)>GXRZBLM00013(D)Low temperature had greater damage to the photosystem of cold-intolerant germplasm,and the chlorophyll fluorescence parameters and chlorophyll content of cold-intolerant germplasm were significantly lower than those of cold-tolerant germplasm.To study the mechanism of how photosynthetic physiology of cold-tolerant jackfruit germplasm responds to low temperature will be the key research direction for breeding new cold-tolerant varieties and preventing and controlling cold damage。

关 键 词：低温 菠萝蜜 叶绿素荧光成像 光合色素 

分 类 号：S667.8[农业科学—果树学]