Introduction
Seed heterogeneity, defined as the production of different types of seeds by a single individual, appears in many different species of angiosperms (Imbert 2002; Matilla et al. 2005). Morphological heterogeneity may occur in seed size, shape, and also color (Baskin and Baskin 1998). Seed heterogeneity may affect physiological properties, being associated with ecological strategies that have evolutionary significance (Venable 1985), including dormancy (Duran and Retamal 1989), germination (Puga-Hermida et al. 2003), and longevity behavior (Diederichsen and Jones-Flory 2005). Several aspects of seed heterogeneity have been reviewed by Matilla et al. (2005).
Differential germinative response of seeds with different form, size or testa color within a species has been reported (Baskin et al. 1998). Besides, it has been for long known that testa has a protective function in seeds, aids in seed dispersal, in the control of germination and also constitutes a barrier against physical and ultraviolet light damage (Bewley and Black 1995).(Mira et al. 2011).
前言
許多不同物種被子植物種子的異質性，是由不同類型特有的種子所產生(Imbert 2002; Matilla et al. 2005)。型態的異質性可能會出現在種子的大小、形狀還有顏色上(Baskin and Baskin 1998)。種子的異質性可能會影響生理特性，和其生態策略進化含義有關係(Venable 1985)，包括休眠(Duran and Retamal 1989)，發芽(Puga-Hermida et al. 2003)，和壽命等的反應(Diederichsen and Jones-Flory 2005)。Matilla 等人在2005年針對種子異質性方面重新進行了探討。
Baskin等人1998年的研究報告指出，同一個物種的種子會有不同的發芽反應，大小或種皮顏色。此外，Bewley and Black 在1995年就已經知道種子的種皮具有保護種子、防止aids傳播、控制發芽等功能，還能扺禦物理和紫外線的損害(Mira et al. 2011)。
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檢舉原因
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