[1]李国祥,孙兰平,张克亮*.榉树种子休眠与萌发特性探讨[J].江苏林业科技,2020,47(06):23-27.[doi:10.3969/j.issn.1001-7380.2020.06.005]
 Li Guoxiang,Sun Lanping,Zhang Keliang*.Seed dormancy and germination of Zelkova serrata[J].Journal of Jiangsu Forestry Science &Technology,2020,47(06):23-27.[doi:10.3969/j.issn.1001-7380.2020.06.005]
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榉树种子休眠与萌发特性探讨()
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《江苏林业科技》[ISSN:1001-7380/CN:32-1236/S]

卷:
第47卷
期数:
2020年06期
页码:
23-27
栏目:
试验研究
出版日期:
2020-12-31

文章信息/Info

Title:
Seed dormancy and germination of Zelkova serrata
文章编号:
1001-7380(2020)06-0023-05
作者:
李国祥1 孙兰平2 张克亮2*
1. 扬州大学实验农牧场, 江苏 扬州 225009;
2. 扬州大学园艺与植物保护学院, 江苏 扬州 225009
Author(s):
Li Guoxiang1 Sun Lanping2 Zhang Keliang2*
1.Experimental Farm of Yangzhou University, Yangzhou 225009, China;
2. College of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China
关键词:
榉树种子休眠冷层积野外埋藏萌发
Keywords:
Zelkova serrata Seed dormancyCold stratificationField burial Germination
分类号:
Q945.35;S792.19
DOI:
10.3969/j.issn.1001-7380.2020.06.005
文献标志码:
A
摘要:
通过对榉树种子吸水特性及不同休眠打破方式(划破种皮、低温层积和野外埋藏)的试验,初步探讨了榉树种子的休眠与萌发特性。结果表明,新成熟的榉树种子具有生理休眠,种子在不同温度下的萌发率均小于10%;低温层积3个月或野外浅层(深1 cm)埋藏可打破种子休眠。休眠打破后,前者处理的种子在5/15 ℃(夜晚/白天)中第40天萌发率达(66±6)%;后者处理的种子在10/20 ℃(夜晚/白天)中第18天萌发率可达(82±6.22)%。
Abstract:
In order to study the dormancy and germination of Zelkova serrata , seed imbibition character and the effect of various dormancy breaking treatment (scarifying the seed coat, cold stratification, and burial in the field) on germination were preliminarily determined. The results indicated that seeds of Z.serrata had physiological dormancy, less than 10% fresh seeds germinated naturally under different temperatures. Cold stratification for 3 months and burial in the field (1 cm depth) could break the dormancy successfully, and the highest seed germination percentage of pretreatment with cold stratification could reach (66±6)% at 5/15 ℃ (N/D) for 40 d and that of pretreatment with shadow burial could get (82±6.22)% at 10/20 ℃(N/D) for 18 d. This study plays a theoretical and fundamental role in the breeding of Z. serrata.

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备注/Memo

备注/Memo:
收稿日期:2020-08-08;修回日期:2020-08-28
基金项目:中央财政林业科技推广示范资金项目“榉树等优良乡土树种精品苗木高效培育技术示范与推广”(苏[2018]TG08)
作者简介:李国祥(1963- ),男,江苏邗江人,技师,大学专科毕业。主要从事林业栽培研究。
*通信作者:张克亮(1988- ),男,山东济南人,讲师,博士。主要从事种子休眠与萌发研究。
更新日期/Last Update: 2021-01-12