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热胁迫下萝卜干物质形成特性研究
引用本文:冉茂林,邹明华,范世祥,刘明先.热胁迫下萝卜干物质形成特性研究[J].西南农业学报,2006,19(3):465-469.
作者姓名:冉茂林  邹明华  范世祥  刘明先
作者单位:1. 四川省农科院水稻高粱研究所,四川,泸州,646000
2. 绵竹市农技推广中心,四川,绵竹,618200
3. 德阳市旌阳区农业局,四川,德阳,618000
基金项目:四川省“十五”蔬菜育种攻关(2001-11-05-12)
摘    要:本文研究了萝卜不同耐热品种在高温胁迫下的生长表现,叶面积、干物质变化。结果表明:热胁迫对萝卜生长的影响主要是叶面积下降,根腐病大量发生,导致个体变小、品质变劣、产量下降。热胁迫下萝卜播收期为60 d,播种后30 d为长叶期,30~60d为长根期。通过苗期单位面积叶鲜重与收获期有效根率测定可预测萝卜耐热性。

关 键 词:萝卜  热胁迫  干物质  叶面积  有效根
文章编号:1001-4829(2006)03-0465-05
收稿时间:2005-04-01
修稿时间:2005-04-01

Study on the dry matter formation character of radish under heat stress
RAN Mao-lin,ZOU Ming-hua,FAN Shi-xiang,LIU Ming-xian.Study on the dry matter formation character of radish under heat stress[J].Southwest China Journal of Agricultural Sciences,2006,19(3):465-469.
Authors:RAN Mao-lin  ZOU Ming-hua  FAN Shi-xiang  LIU Ming-xian
Institution:1. Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences, Sichuan Luzhou 646000, China; 2. Agricultural Extension Center of Mianzhu City, Sichuan Mianzhu 618200, China; 3.Jiyan District Agricultural Bureau of Deyan City, Sichuan Deyan 618000, China
Abstract:The growing performance and the leaf area and the dry matter in the different thermo-resistant variety of radish were studied.The results showed that: under heat stress,the leaf area decreased and the root disease occurred largely,which result in the individual change small and the quality change bed and the yield descent.Under heat stress,the times from sowing to harvest of radish is 60 days.The growing leaf period of radish is 30 days after sowing,and the growing root period is 30-60 days.The thermo-resistant of radish can be estimated by the ratio of fresh weight/leaf area in the seeding period and its effective root rate in the harvest time.
Keywords:radish  heat stress  dry matter  leaf area  effective root
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