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Quantitative determination of the strength of rapeseed pod dehiscence

文献类型： 会议论文

第一作者： TAN Xiaoli

作者： TAN Xiaoli 1 ; ZHANG Jiefu 2 ; ZHANG Zhiyan 3 ; ZHOU Jia; JIANG Song; QI Cunkou; LI Jiayang;

作者机构： 1.Institute of Life Sciences, Jiangsu University, Zhenjiang Jiangsu Province, 212013, China

2.Institute of Industrial Crop, Jiangsu Academy of Agricultural Sciences, Nanjing Jiangsu Province, 200014, China

3.Institute of Life Sciences, Jiangsu University,

关键词： Quantitative determination;Pod dehiscence;Rapeseed;Ripping

会议名称： International Rapeseed Congress; 20070326-30; Wuhan(CN)

主办单位：

页码： 1107-1110

摘要： Rapeseed pods are easy to shatter causing yield loss during harvest. Furthermore the fragile pod is not suitable for mechanical harvest. Quantitive determination of strength of rapeseed pod dehiscence is necessary for studying the mechanism of rapeseed pod shattering and breeding cultivars with shattering tolerance. A "Ripping" method was developed to determine quantitively the pod dehiscence strength. To keep the different tests comparable, 6 pods per variety were balanced in a chamber at 25℃ and at 50% relative humidity (RH) for 2 weeks, then the pods were enlaced with metalic thread at 2.5cm to the pedicel and glued onto a plate. The probe moved up to rip the pod, the maximal force that probe monitored was the pod dehiscence strength.Results of 47 tested varieties showed that the pod dehiscence strength among rapeseed lines varied greatly, hence selecting the pod shatter tolerant varieties among lines of oilseed rape for mechanical harvest was feasible. The "ripping" method of quantitive determination of the pod dehiscence strength had a potential value in rapeseed breeding and biological researches.

分类号： [ "S565.4" , "S565.4"]

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