山茶属五种野生植物种子萌发试验分析

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历时三年,对贵州特有的美丽红山茶(CamelliadelicataY.K.Li)、长柱红山茶(C.longistyllaYKLietChang)、小黄花茶(C.luteofloraYKLi)、狭叶瘤果茶(CnerifoliaChang)和野生油茶(ColeiferaAbel.)(广布种)等自然野生种类的结实与繁殖进行了研究.实验结果为:1,成花自然结实百分率分别为40.3,30.0,22.5,20.8,45.6:成熟种子百分率为结实率的60.0,50.3,60.0,58.5,60.2;种子带病虫百分率为结实率的30.0,38.0,28.0,16.0,28.6:在原自然分布地林区设15m×15m样方统计种子自然萌发百分率,其平均数分别为3.0,2.5,3.0,2.5,8.6:而苗床播种出苗率则为86.2,90.076.0,76.1,85.4;2,受精不发育或不完全发育现象普遍存在,调查结果得发育完全的种子百分率为50.0,60.6,30.5,30.0,46.5:3,五种植物的成熟种子在5~22℃,相对湿度≥60%的暗光或无光条件下30天均开始萌芽,最适萌发气温为17±1℃,最适前发湿度为70±5%,但同时播入土中的种子,极少数可延迟1~2年萌发.种子的形成和萌发是授粉、受精、发育生理与其环境因子综合作用的结果,采用科学方法促进种胚发育,提高种子成熟率和种子活力,解决种子出苗整齐,培育壮苗等关键技术,在? It lasted for three years and was endemic to Guizhou Province, and camel was endemic to Guizhou, including Camellia delicataY.K.Li, C. longistyllaYKLietChang, C.luteofloraYKLi, CnerifoliaChang and wild Seed and reproduction of natural wild species such as Coleifera Abel (widely distributed species) were studied. The experimental results were as follows: 1. The percentage of mature natural flowers were 40.3, 30.0, 22.5, 20.8 and 45.6 respectively: the percentage of mature seeds was 60.0, 50.3 and 60 percent of the seed setting. 0,58.5,60.2; seed with pests percentage of the seed setting rate of 30.0,38.0,28.0,16.0,28.6: set in the original natural distribution of forest area set 15m × 15m The average percentage of seed germination of the seeds was 3.0, 2.5, 3.0, 2.5, and 8.6, respectively. The seedling emergence rate was 86.2, 90.076.0 and 76 .1,85.4; 2, Incomplete fertilization or incomplete development of the prevalence of the survey results were fully developed seed percentage of 50.0,60.6,30.5,30.0,46.5: 3 The mature seeds of five kinds of plants began to germinate in dark or no light condition with the relative humidity 60% or more at 5-22 ℃ for 30 days. The optimum germination temperature was 17 ± 1 ℃ and the optimum pre-emergence humidity was 70 ± 5%, but at the same time sowing seeds in the soil, a very small number of germination can be delayed 1-2 years. The formation and germination of seeds are the result of the combined effect of pollination, fertilization, developmental physiology and environmental factors. Scientific methods are used to promote the embryo development, improve the seed ripening rate and seed vigor, and solve the key technologies of seed germination and seedling cultivation.
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