文献类型：期刊文献

中文题名：两个温带相思属树种的耐寒性评估

英文题名：Evaluation of Frost Tolerance of Two Acacia Species Introduced from Australian Temperate Zone

作者：李纪元[1,2,3] 高传璧[1,2,3] 郑学为[1,2,3] 郑方楫[1,2,3] 任华东[1,2,3] 杨逸平[1,2,3]

第一作者：李纪元

机构：[1]中国林业科学研究院亚热带林业研究所;[2]福建省邵武市故县林场;[3]湖南省湘阴县第一中学

年份：1999

卷号：12

期号：1

起止页码：87-91

中文期刊名：林业科学研究

外文期刊名：FOREST RESEARCH

收录：CSTPCD;;Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：国家"八五"林业攻关专题

语种：中文

中文关键词：黑木相思;灰木相思;种源;耐寒性;电导值

外文关键词：Acacia melanoxylon; A.implexa; provenance; frost tolerance; conductivity

分类号：S792.01

摘要：采用电导法并结合原产地气候因子多变量分析，对温带黑木相思、灰木相思幼林在树种和种源２个层次上的耐寒性变异进行了评价。结果表明，在树种层次上，两者的耐寒性相差无几，灰木相思略强于黑木相思；而在种源层次上，耐寒性变异达到了极显著差异。黑木相思的低温敏感区为－４℃左右，而灰木相思则在－４～－６℃之间。在澳大利亚３２°Ｓ以北地区，昆士兰州的绝大多数种源的耐寒能力差，仅有新南威尔士州的ＬＡＷＬＥＲＳ种批表现较好的抗寒性。在凉爽地区的种源中，有６０％的种批表现出较高的耐寒能力。耐寒的黑木相思有来自塔斯马尼亚州的ＲＥＤＣＲ．、南澳州ＧＡＭＢＩＥＲ山区、新南威尔士州ＬＡＷＬＥＲＳ和维多利亚州ＢＯＮＡＮＧ种批。耐寒的灰木相思有维多利亚州的ＳＹＤＥＮＨＡＭ和ＰＹＡＬＯＮＧ、新南威尔士ＹＡＳＳＧＵＮＮＩＮＧ种批。
Frost tolerance of Acacia melanoxylon and Acacia implexa introduced from the Australian temperate zone was evaluated on basis of conductivity along with multi variety analysis of Australian climatic factors.There was no significant difference for frost tolerance between the two Acacia species,and only slightly stronger frost tolerance of A.implexa was found. However,results showed very significant difference for hardiness among the 17 provenances of two Acacia species. The sensitizing range of low temperature for A. melanoxylon is -4 ℃,and -4～-6 ℃ for A. implexa. Most of provenances from northern areas (Queensland) with further southern latitude of 32° S showed lower frost tolerance with an exception of the seedlot from LAWLERS of NSW. There were 60% of seedlots from cooler areas showing stronger frost tolerance. A.melanoxylon seedlots with stronger hardiness are from RED CR.of TAS,GAMBIER of SA,LAWLERS of NSW and BONANG of VIC,and the A.implexa seedlots from SYDENHAM and PYALONG of VIC,YASS GUNNING of NSW.