摘要
研究乌桕种子育苗的方法及不同外界环境对幼苗年生长节律的影响。结果表明:乌桕幼苗苗高增长呈"S"型增长模式,苗木增长出现缓慢期、速生期和停滞期3个时期;苗高速生期起点为5月下旬,持续至9月中旬,在5月下旬出现苗高速生点;在种子的处理中,用洗衣粉加温水处理的比不加任何处理的发芽率要高;在不同施肥处理中,施尿素的植株长势最好,不施肥的植株长势最差;在不同光照处理中,光照强的植株比光照弱的长势好。
The seedling raise method for seed of Sapium sebiferum and the impacts of different external environment to growth rhythm of seedlings of Sapium sebiferum were studied. The results indicated that the growth of seedling height of Sapium sebiferum showed an S-type pattern, and the growth of seedlings had three periods （slow growth, fast growth and stagnated growth）. The fast growth period of seedlings started from the late May and lasted to the middle of Sept., and the maximum growth point was in the late May. Among all the seeds treatments, the seeds with the treatment of adding washing powder to lukewarm water had the higher germination rate than that of the seeds without any treatment. By using different fertilizers, the plants were applied with nitrogen fertilizer had the best growth, and the plants were not applied with any fertilizer had the worst growth. Among different lighting treatments, the plants which were under high light intensity had better growth than the plants which were under low light intensity.
出处
《湖南农业科学》
2010年第12期132-134,共3页
Hunan Agricultural Sciences
基金
安徽省教育厅自然科学项目(KJ2008B231)
黄山学院科研项目(2006xkjq011)
关键词
乌桕
发芽率
幼苗
光照
肥料
生长节律
Sapium sebiferum
germination rate
young seedling
light
fertilizer
growth rhythm
