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首页> 外文期刊>Journal of Sustainable Forestry >Effect of sowing date on seedling emergence of species with seeds enclosed in a stony endocarp
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Effect of sowing date on seedling emergence of species with seeds enclosed in a stony endocarp

机译：播播对石尾涂层封闭种子苗木出现的影响

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摘要

The aim of the present study was to investigate the effect of the natural sequence of temperature conditions between the time of seed sowing and their germination on dormancy release of Prunus avium, P. mahaleb, P. divaricata, P. laurocerasus, P. spinosa, Corpus mas, C. sanguinea, and Celtis australis seeds which are enclosed in a hard stony endocarp. According to their collection date, the seeds (with the endocarp) of the above species were sown outdoor in summer, autumn, and winter and the number of emerged seedlings was counted during the following two springs. For all species, the first sowing date was immediately after seed collection and cleaning. In all species, seedling emergence occurred in early spring and dormancy was released only after the exposure of seeds to specific season conditions. The exposure of seeds of all studied species, except C. australis, to a period of warm temperatures prior to winter was necessary for dormancy breaking and germination. Autumn sowing of P. laurocerasus and C. sanguinea seeds, which were collected in summer, and the sowing immediately after seed collection of the rest species, resulted in a maximum percentage of seedling emergence in the following spring.
机译：本研究的目的是探讨温度条件自然序列之间的效果及其在Prunus Avium，P.Mahaleb，P. Divaricata，P. Laurocerasus，P. Spinosa的萌芽，P. Spinosa， Corpus Mas，C. sanguinea和Celtis Australis种子，封装在硬质endocarp中。根据他们的收集日期，上述物种的种子（endocarp）在夏季，秋季和冬季播种户外，在以下两个弹簧中计算出现的幼苗的数量。对于所有物种，在种子收集和清洁后，第一个播种日期立即。在所有物种中，早春发生幼苗出苗，只有在将种子暴露于特定季节条件后才会释放休眠。除了C. Australis之外，所有研究的种子的种子暴露于冬季之前的温暖温度，对于休眠破裂和发芽是必要的。秋季播种的劳斯氏菌和C.血淋淋的种子，在夏季收集，以及在种子收集其余的物种后立即播种，导致下列春季的幼苗出苗的最大百分比。

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