DEVELOPMENT OF COLD TOLERANCE IN WHITE CLOVER (TRIFOLIUM-REPENS L) IN RELATION TO CARBOHYDRATE AND FREE AMINO-ACID CONTENT

被引:0
|
作者
ROSNES, K [1 ]
JUNTTILA, O [1 ]
ERNSTSEN, A [1 ]
SANDLI, N [1 ]
机构
[1] UNIV TROMSO,INST BIOL & GEOL,DEPT PLANT PHYSIOL & MICROBIOL,N-9037 TROMSO,NORWAY
关键词
LOW TEMPERATURE; SUCROSE; PROLINE;
D O I
暂无
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Development of cold tolerance in white clover (Trifolium repens L.) genotypes originating from various parts of Norway and grown outdoors at Tromso, latitude 69-degrees-39'N, has been studied. Stolon samples for an artificial freezing test and for chemical analysis were collected three times during the autumn. Generally, the most northern genotypes were more cold tolerant than the southern ones. Cold tolerance increased significantly from September to November in all genotypes. Content of dry matter, soluble carbohydrates, sucrose and proline in stolons increased during the hardening process. These changes were similar in both northern and southern genotypes of white clover.
引用
下载
收藏
页码:151 / 155
页数:5
相关论文
共 50 条