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首页> 外文期刊>Acta Horticulturae >Study on sexual reproduction technology of Cerasus discoidea.
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Study on sexual reproduction technology of Cerasus discoidea.

机译：Cerasus discoidea的有性生殖技术研究。

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Cerasus discoidea Yu et Li is an endemic species of wild cherry in China. In order to protect germplasm resources reasonably, in this study, the sexual reproduction was investigated. The results show that the seeds of C. discoidea can be stored by sealed dry storage method between 3 to 5 degrees C. The water content of the seeds was between 2 to 4%, and seed vigor ranged from 99.3 to 100%, during the storage period. Selective sowing in two kinds of growing media decreased the rate of dwarfing seedlings by 0.7 and 1.1% respectively when compared to random sowing. And the emergence rate of selective sowing in two kinds of growing media is 99.0 and 96.5% respectively. Meanwhile, organic substrate containing more than 50% organic matter, and more than 2.5% nitrogen, phosphorus and potassium is more conducive to emergence and growth. After the seeds were sown for 150 days, the average height of seedlings was 44.67 cm, and base diameter was 2.77 mm, with seedlings having 16 true leaves. After dry stones were stored sealed under low temperature until autumn, then they were stratified under the constant temperature 3-5 degrees C for 30 days and then under the natural variable low temperature in winter. After that, field seedbed nursery was conducted, and seed germination rate was 28.4% in the spring, and the seedlings grew fast.
机译：Cerasus discoidea Yu et Li是中国野樱桃的特有种。为了合理地保护种质资源，本研究对有性生殖进行了研究。结果表明：在干燥过程中，圆盘衣壳的种子可以通过密封干燥保存在3至5摄氏度的条件下保存。种子含水量在2％至4％之间，种子活力在99.3％至100％之间。储存期。与随机播种相比，在两种生长介质中的选择性播种使矮化苗率分别降低了0.7％和1.1％。两种生长介质中选择播种的出苗率分别为99.0和96.5％。同时，有机基质中有机物含量超过50％，氮，磷，钾超过2.5％，更有利于出苗和生长。播种150天后，幼苗的平均高度为44.67厘米，底径为2.77毫米，幼苗具有16片真叶。将干燥的石头密封保存在低温下直到秋天，然后在3-5摄氏度的恒温条件下分层30天，然后在冬天在自然可变的低温下分层。之后，进行田间苗床育苗，春季种子发芽率为28.4％，幼苗生长快。

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