Investigation on Cold Injure and Cold Tolerance Clones Selection of Tectona grandis
The breeding on cold tolerance is an important point for teak (Tectona grandis).In order to select cold tolerance clones,this paper investigated the survial rates of half-year-old teak clone field trials after cold injure in winter.The result showed that the survivals had significant difference among clones.The survival ratio of Bobai trial in Guangxi province was ranged from 0 to 91.67％,and at Luodian trial in Guizhou province was ranged from 8.33％ to 86.17％.The clones 7514,7509,7531,Z408,7559 and 8301 were selected as cold tolerance clones,with which survival ratio were all higher than 80％ at two field trials.Myanmar teak provenances had higher cold tolerance than Indian provenances.
NETL
NSTL
万方数据
维普
