Experimenton Overwintering Method for IntroducedFicusreligiosainPutuoshan Island
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摘要: 在浙江普陀山岛,对菩提树Ficusreligiosa苗采用防冻衣、简易大棚、玻璃温室和对照露天栽植4种处理探究在海岛地区的越冬防寒关键技术,为热带植物在较高纬度地区的引种预测、筛选育种以及栽培和应用提供科学依据。试验表明:相对于对照,防冻衣、简易大棚和玻璃温室均能增加冬季极端低温;不同处理对菩提树造成的冻害级别为:对照>防冻衣>简易大棚>玻璃温室,其中对照的冻害级别为V,为整株死亡;防冻衣和简易大棚的冻害级别是Ⅳ,为主干枯死,干基以下存活;玻璃温室的冻害级别为Ⅱ,只是略微受损。二次越冬试验表明:4种处理措施在暖冬情况下,菩提树的存活率均为100%,但冻害级别和症状、恢复效果有差异。此外,菩提树种苗来源地越靠近普陀山岛、纬度越高、种苗径级越大,其越冬存活率越高。综合得出极端低温是影响菩提树在普陀山岛越冬的关键因素,玻璃温室对菩提树的越冬防寒效果最好。因此,可在海岛地区引种靠近较高纬度区域的大径级热带佛教植物,利用玻璃温室建立佛教植物园。Abstract: One hundred 4-year Ficusreligiosa seedlings were introduced from Longhai of Fujian province in Putuoshan Island of Zhejiang in November of 2015 for experiment of overwintering. Seedlings were treatedin the current year byanti-freezing cover, plastic greenhouse, glasshouse and control group.The results of next year investigation showed that frost damage of seedlings was orderedby control>anti-freezing cover > plastic greenhouse> glasshouse. Overwintering experiment on the same seedlings in the second year showed that the survival ratewas 100% under different treatments, but the frost damage wasdifferent. Experiment on overwintering in glasshouse was carried out of different provenances of 2-year and 6-yearF.religiosaseedling inPutuoshan Island in 2016. The result demonstrated thatlarger seedlings and from higher latitude had higher survival rate and better growth.
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Keywords:
- Putuoshan Island /
- Ficusreligiosa /
- overwintering /
- anti-freezing cover /
- plastic greenhouse /
- glasshouse
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