Temperature has been shown to influence the level of dormancy and, while water does not appear to alter it by itself, it can modulate the effect of temperature on dormancy release (Benech-Arnold et al. 2000; Steadman et al. 2003). Thermal time theory has proved to be useful in describing the role of temperature in dormancy release throughout afterripening, based on the linear increase in dormancy release rate above a minimum (base) temperature for dormancy release (Bair et al. 2006; Steadman 2004; Steadman et al. 2003).
Little is known about seed longevity related to seed coat heteromorphism. Within heterogeneous seed populations, some seed lots are more persistent than others in the soil seed bank (Khan et al. 1997). It has been showed that Atriplex semibaccata and Blackiella inflata have hard and dark colored seeds which remained viable longer than the soft and light ones (Beadle 1952). Also, dark colored pea seeds had higher vigor after ageing than light seeds (Atak et al. 2008).
The aim of the present work was to analyze the influence of testa color and storage conditions on germination, dormancy release and longevity of Silene diclinis seeds. Both parameters were studied using environments with different temperature and relative humidity. Besides being able to relate these conditions to the natural habitat, to correlate with seed availability in soil seed bank, the study can bring important implications in the management of germplasm banks for long term ex situ conservation. In order to model the seed responses in the different environments a thermal model was used (Steadman 2004)
and longevity parameters were calculated solving the coefficients of the Avrami equation
(Walters et al. 2005)(Mira et al. 2011).
溫度顯示影響休眠的程度，而水本身似乎並沒有改變，它可以調節溫度對解除休眠的影響(Benech-Arnold et al. 2000; Steadman et al. 2003)。基於解除休眠的最低溫呈線性增加，熱時間理論證明溫度對於解除休眠的後熟作用是有幫助的(Bair et al. 2006; Steadman 2004; Steadman et al. 2003)。
種皮異質性和種子壽命的關係很少人知道。在異質種子中，有很多種子比土壤種子庫中的其他種子保存更久(Khan et al. 1997)。Atriplex semibaccata 和 Blackiella inflata那些存活下來的種子顯示硬實和深色種子比那些較軟、淺色和輕的種子存活更久(Beadle 1952)。另外，深色豌豆種子老化之後活力也比淺色種子更高(Atak et al. 2008)。
我們的目的是研究分析 Silene diclinis 種子種皮顏色和儲存環境對解除休眠、發芽、和壽命的影響。以不同的溫度和相對濕度環境這兩個參數進行了研究。除了能與自然棲地共存，土壤種子庫種子的可利用性，更重要的是這個研究涉及了長期移地保育的種子庫管理。為了模擬種子在自然環境中的反應給予熱環境(Steadman 2004) 和Avrami方程式計算預測種子的壽命 (Walters et al. 2005)(Mira et al. 2011).。
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