Development of Cold Tolerance in White Clover (Trifolium repensL.) in Relation to Carbohydrate and Free Amino Acid Content

Autor:	Junttila Olavi, Ernstsen Arild, Røsnes Kirsti, Sandli Nina
Rok vydání:	1993
Předmět:	Sucrose biology Cold tolerance Stolon Soil Science Carbohydrate biology.organism_classification White (mutation) chemistry.chemical_compound chemistry Agronomy Trifolium repens Dry matter Proline Agronomy and Crop Science
Zdroj:	Acta Agriculturae Scandinavica, Section B - Soil & Plant Science. 43:151-155
ISSN:	1651-1913 0906-4710
DOI:	10.1080/09064719309411233
Popis:	Development of cold tolerance in white clover (Trifolium repens L.) genotypes originating from various parts of Norway and grown outdoors at Tromso, latitude 69°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.
Databáze:	OpenAIRE
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