摘要
以不同耐冷性的３个水稻品种为材料，分析了它们在４种处理方式下的溢泌量及再生茎重。再次证实７～８叶期的低温溢泌量可以作为耐冷性的一个指标，并发现４～５叶期的低温溢泌量也同样可以作为耐冷性的指标。首次发现溢泌量与再生茎重间存在着极为显著的正相关，提出以再生茎重作为耐冷性指标，该指标有可能直接应用于水稻耐冷性育种。
Three rice varieties with different cold tolerance at booting and flowering stages were used to analyse their Amount of Bleeding Water (ABW)and Regenerated Culm Weight (RCW)under four different conditions.It was reconfirmed that ABW of rice variety at 7～8 leaf stage under low temperature might be used as a criterion for cold tolerance.The result showed that the ABW at 4～5 leaf stage under low temperature might also be used as a criterion for cold tolerance.It is first noted that there is siginificant relationship between ABW and RCW,and RCW could be used as a criterion for the degree of cold tolerance.The analysis of RCW is much easier than that of ABW,It could be a possible way in cold tolerence selection in rice breeding
出处
《西南农业学报》
CSCD
北大核心
1998年第1期7-11,共5页
Southwest China Journal of Agricultural Sciences
基金
云南省跨世纪人才培养基金
关键词
水稻
溢泌量
再生茎重
耐冷性
Amount of bleeding water Regenerated culm weight Cold tolerance Criterion Oryza sativa L.
