Assessment of perennial ryegrass (Lolium perenne L.) for breeding. I Freezing tolerance
Assessment of perennial ryegrass (Lolium perenne L.) for breeding. I Freezing tolerance
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多年生黑麦草（Lolium perenne L.）的育种评估。
DOI：
10.1007/bf00024813
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发表时间：
1988
期刊：
影响因子：
1.9
通讯作者：
C. Eagles
中科院分区：
文献类型：
--
作者：
M. Humphreys;C. Eagles
在自然硬化的田间植物上进行乙二醇浴试验，对86份黑麦草的耐寒性进行了评估，以发生50%死亡的温度(=LT50)为依据。LT50与材料的抽穗期和原产地附近最冷月份的最低温度之间存在显著的相关关系。讨论了温度和生殖发育对植物在冻结后的硬化/脱硬和生长的影响。
Assessments of freezing tolerance, estimated in terms of temperature at which 50% mortality occurs (=LT50), were obtained for 86Lolium perenneaccessions using a glycol bath test on naturally hardened field plants. Significant correlations were obtained between LT50and both heading dates of accessions and minimum temperature of the coldest month near their sites of origin. The effects of temperature and reproductive development on the hardening/dehardening of plants and their growth after freezing are discussed.