CHEN Jie,GAO Qinghai,MA Hengyu,et al.Identification for Flooding Stress Tolerance and Selection for Indexes of Watermelon Root Stock at Seedling Stage[J].Northern Horticulture,2018,42(08):7.[doi:10.11937/bfyy.20173875]
西瓜砧木苗期耐涝性鉴定及指标选择
- Title:
- Identification for Flooding Stress Tolerance and Selection for Indexes of Watermelon Root Stock at Seedling Stage
- 文献标志码:
- A
- 摘要:
- 以12份西瓜砧木为试材,采用模拟涝害的方法,利用相关性分析、主成分分析和聚类分析对西瓜砧木幼苗进行分类,初步建立西瓜砧木耐涝鉴定方法,研究了涝害对西瓜砧木幼苗生长和光合生理的影响,以期为西瓜耐涝砧木的筛选提供参考依据。结果表明:在西瓜砧木幼苗期耐涝鉴定中,通过隶属函数法对11种砧木进行综合评价,根据隶属函数法和聚类统计分析,以根长、地上部干质量、根系干质量、叶绿素含量和光合速率作为耐涝鉴定综合指标较好。‘日本雪松’的隶属函数值最高,耐涝性最好,而‘砧王’的隶属函数值最低,其耐涝性最差,南瓜砧木比葫芦砧木的耐涝性更强一些。
- Abstract:
- In order to establish of waterlogging tolerance identification method for watermelon rootstock by the method of simulation flooding stress,the morphological and photosynthetic indexes of rootstocks under flooding stress were studied on the basis of collecting 12 watermelon rootstocks. The effects of waterlogging on growth and photosynthetic physiology of watermelon seedlings were studied, in order to provide the reference for the screening of watermelon rootstock waterlogging. The results showed that in the identification of flooding stress tolerance at seedling stage, according to the membership function method and the cluster statistical analysis, the root length, dry weight, root dry weight, chlorophyll content and photosynthetic rate were better for flooding stress tolerance identification. The membership value of ’Japan Cedar’ was the highest and its flooding stress tolerance was the best, and the membership value of ’Anvil’ is the lowest, which was more susceptible to flooding stress tolerance.
参考文献/References:
[1] 唐罗忠,徐锡增,方升左.土壤涝渍对杨树和柳树苗期生长及生理性状影响的研究[J].应用生态学报,1998,9(5):471-474.
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备注/Memo
第一作者简介:陈杰(1994-),男,硕士研究生,研究方向为蔬菜高产栽培生理。E-mail: 1040706764@qq.com.责任作者:高青海(1977-),男,博士,教授,硕士生导师,研究方向为蔬菜高产栽培生理。E-mail: gaoqh1977@163.com.基金项目:安徽省教育厅自然科学重点研究资助项目(KJ2014A054);安徽省自然科学基金资助项目(1208085QC55)。收稿日期:2018-02-01