3个野牡丹品种耐热性研究  

Research on heat tolerance of three Melastoma candidum varieties

作　　者：刘晓洲 刘世晗 方必君 谢腾芳 李冰敏 李银 LIU Xiaozhou;LIU Shihan;FANG Bijun;XIE Tengfang;LI Bingmin;LI Yin(Pubang Landscape Architecture Co.,Ltd.,Guangzhou 510600,China)

机构地区：[1]广州普邦园林股份有限公司,广东广州510600

出　　处：《安徽农学通报》2024年第18期24-27,共4页Anhui Agricultural Science Bulletin

基　　金：广东省林学会科技计划项目“野牡丹科观赏植物新品系选育及繁育技术研究”(2022-GDFS-J-02)。

摘　　要：为探究紫绮、紫姝和霓裳3个优良野牡丹品种的耐热能力,以3个野牡丹品种叶片为材料,分析其表皮形态,在室温、35、40、45、50、55、60和65℃的水浴下加热15 min,测定其细胞伤害率,通过Logistic方程确定高温半致死温度,进行隶属函数分析。结果表明,霓裳、紫姝和紫绮的高温半致死温度分别为58.97、57.81和57.05℃,隶属函数综合值分别为2.436、2.305和1.184。综合考虑,3种野牡丹品种均具备一定的耐热能力,耐热性综合排序为霓裳>紫姝>紫绮。To investigate the heat tolerance of three varieties Ziqi,Zishu and Nichang of Melastoma candidum.The leaves were used as materials to determine the epidermal morphology,the rate of cell injury was determined after heating in a water bath at room temperature,35,40,45,50,55,60 and 65℃for 15 minutes,semi-lethal temperatures were determined by logistic equations and analysed by affiliation function.The results showed that,the semi-lethal high temperatures of Nichang,Zishu and Ziqi were 58.97,57.81 and 57.05℃respectively,and the integrated values of the affiliation function were 2.436,2.305 and 1.184 respectively.Taken together,the three Melastoma candidum varieties all possessed a certain degree of heat resistance,and the comprehensive ranking of heat resistance was Nichang>Zishu>Ziqi.

关 键 词：野牡丹 耐热性 高温半致死温度 品种筛选 

分 类 号：S685.11[农业科学—观赏园艺]