2024年5月3日 星期五
迁地保存中土壤因子对渐危植物珊瑚菜生长发育的影响
Effects of different soil media on the growth and development of endangered plant Glehnia littoralis
2003年 第12卷 第3期 页码[25-30]    下载全文[0.9MB]  
摘要

将原生长在海滨沙滩上的珊瑚菜(Glehnia littoralis Fr.Schmidt ex Miq.)迁地移栽至下列6种不同配比的土壤基质上,即全沙(Ⅰ)、1 2沙+1 2腐殖土(Ⅱ)、1 2沙+1 2黄棕壤土(Ⅲ)、黄棕壤土(Ⅳ)、腐殖土(V)和1 3沙+1 3腐殖土+1 3黄棕壤土(Ⅵ)。在定期定株连续观察基础上,比较分析了生长在上述6种不同基质中的珊瑚菜的成活率、生长发育状况和花果数量,发现在Ⅵ类基质上的珊瑚菜移栽成活率最高;在Ⅱ类基质上的营养生长最好;在Ⅲ类基质上的结实率及种子的饱满程度最高;而Ⅳ类基质对珊瑚菜的生长发育最不利。根据珊瑚菜生长发育状况的10个生物学指标,对上述各类基质进行了综合评估,认为对珊瑚菜迁地移栽最为有利的土壤基质依次为Ⅲ>Ⅱ>Ⅰ>Ⅵ>Ⅴ>Ⅳ。

Abstract

The individuals of Glehnia littoralis Fr.Schmidt ex Miq. introduced from the sandy beach of Liandao Island at Lianyungang in Jiangsu Province were planted in 6 kinds of soil medium at Nanjing, such as sand (Ⅰ) , 1/2 sand +1/2 humus (Ⅱ) , 1/2  sand +1/2 yellow-brown earth (Ⅲ) , yellow-brown earth (Ⅳ) , humus(Ⅴ)and 1/3  sand +1/3humus +1/3yellow-brown earth (Ⅵ). The survival rate, growth situation , blooming and fruiting of G. littoralis planted in the above-mentioned 6 kinds of soil medium were observed and compared. The results indicated that the survival rate of these individuals was the highest in Ⅵ , the nutrition growth in Ⅱ was the best, in Ⅲ the fruiting rate and the seed quantity were the highest, and the growth and development in Ⅳ was the most unfavorable. According to 10 indexes of the growth and development, the advantage of the above-mentioned different soil media were evaluated and ordered for planting this species, and the order is Ⅲ>Ⅱ>Ⅰ >Ⅵ >Ⅴ>Ⅳ.

关键词珊瑚菜; 土壤因子; 迁地保存;
Key wordsGlehnia littoralis Fr. Schmidt ex Miq.; soil factor; conservation
作者惠红;刘启新;刘梦华
所在单位江苏省中国科学院植物研究所(南京中山植物园);江苏南京;210014
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基金项目江苏省自然科学基金资助项目(BK93146307); 国家自然科学基金资助项目(39870071);