The necessity for testing germination of fresh seeds in studies on diaspore heteromorphism as a life-history strategy
The necessity for testing germination of fresh seeds in studies on diaspore heteromorphism as a life-history strategy
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作为生活史策略的水硬铝石异形性研究中测试新鲜种子发芽的必要性
DOI：
10.1017/s096025851300010x
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发表时间：
2013-06-01
影响因子：
2.1
通讯作者：
Tan, Dun Y.
中科院分区：
文献类型：
--
作者：
Baskin, Jerry M.;Lu, Juan J.;Tan, Dun Y.
摘要许多研究比较了两种二型植物的繁殖体的分散能力和休眠程度。这些研究的主要目的是确定两种变体的萌发和扩散特性是否符合高风险-低风险（赌注对冲）生活史策略，即一种变体中的高扩散/低休眠与另一种变体中的低扩散/高休眠。在对28种水硬铝石二型物种的26篇论文的调查中，我们发现，在1978年至2008年期间发表的12项研究中，种子在发芽测试之前被储存，因此可能是后熟的。这14篇测试新鲜种子的论文发表于1963年至2010年间。未能测试新鲜的种子可能导致在一些物种的调查的繁殖体扩散/休眠策略的误解。我们的结论是，它是必要的，新鲜的种子进行发芽测试，以确定正确的传播和休眠之间的关系得到阐明，从而正确的解释是关于生活史的战略和赌注对冲，在二态物种。
Abstract Many studies have compared diaspore dispersal ability and degree of dormancy in the two diaspores of dimorphic plant species. A primary goal of these studies was to determine if germination and dispersal characteristics of the two morphs fit within a high risk–low risk (bet-hedging) life-history strategy, i.e. high dispersal/low dormancy in one morph versus low dispersal/high dormancy in the other one. In a survey of 26 papers on 28 diaspore dimorphic species, we found that in 12 of the studies, which were published between 1978 and 2008, seeds were stored, and thus possibly afterripened, before they were tested for germination. The 14 papers that tested fresh seeds were published between 1963 and 2010. Failure to test fresh seeds likely resulted in misinterpretation of the diaspore dispersal/dormancy strategy in some of the species investigated. We conclude that it is imperative that fresh seeds be tested for germination in order to be certain that the correct relationship between dispersal and dormancy is elucidated, and thus that the correct interpretation is made concerning life-history strategy and bet-hedging, in dimorphic species.