[1]朱淑娟,王方琳*,刘有军,等. 土壤水分和种子大小对梭梭种子萌发、出苗和幼苗生长的影响[J].西北林学院学报,2021,36(6):16-21.[doi:10.3969/j.issn.1001-7461.2021.06.03]
　ZHU Shu-juan,WANG Fang-lin*,LIU You-jun,et al. Effects of Soil Moisture and Seed Size on the Germination,Sprouting and Sapling Growth of Haloxylon ammodendron[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2021,36(6):16-21.[doi:10.3969/j.issn.1001-7461.2021.06.03]
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 土壤水分和种子大小对梭梭种子萌发、出苗和幼苗生长的影响()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第36卷
期数:
2021年第6期
页码:
16-21
栏目:
出版日期:
2021-11-30

文章信息/Info

Title:
 Effects of Soil Moisture and Seed Size on the Germination,Sprouting and Sapling Growth of Haloxylon ammodendron
文章编号:
1001-7461(2021)06-0016-06
作者:
 朱淑娟1; 王方琳1; 2*; 刘有军1; 孙涛1; 2; 柴成武1; 张剑挥1; 3; 张红媛1
 （1.甘肃省治沙研究所，甘肃 兰州 730070；2.甘肃省荒漠化与风沙灾害防治国家重点实验室（培育基地），甘肃 武威 733000；3.甘肃民勤荒漠草地生态系统国家野外科学观测研究站，甘肃 民勤 733300）
Author(s):
 ZHU Shu-juan1; WANG Fang-lin1; 2*; LIU You-jun1; SUN Tao1; 2; CHAI Cheng-wu1; ZHANG Jian-hui1; 3; ZHANG Hong-yuan1
 (1.Gansu Desert Control Research Institute,Lanzhou 730070,Gansu,China; 2.State Key Laboratory/Breeding Base of Desertification and Aeolian Sand Disaster Combating,Wuwei 733000,Gansu,China; 3.Gansu Minqin National Studies Station for Desert Steppe Ecosystem,Minqin 733300,Gansu,China)
关键词:
 ; 梭梭; 土壤含水量; 种子大小; 种子萌发; 幼苗生长
Keywords:
Haloxylon ammodendron;  soil moisture;  seeds size;  germination;  sapling growth
分类号:
S718.43
DOI:
10.3969/j.issn.1001-7461.2021.06.03
文献标志码:
A
摘要:
 采用室内试验研究不同土壤含水量及种子大小对梭梭种子萌发和出苗及幼苗生长的影响。结果表明,除土壤含水量2%的处理时小粒种子不能萌发外，其他水分条件下大、小粒种子均可萌发，并均出现随含水量增加萌发率逐渐增大的趋势，含水量为30%时大、小粒种子均出现最大值。土壤水分含量>8%时，大、小粒梭梭种子均可实现快速萌发，萌发速率间无显著差异，但土壤含水量显著影响大、小粒种子的萌发指数及活力指数，两者呈随含水量增加而先增大后降低的趋势，在含水量为15%时达最大值。土壤含水量为2%和30%的处理中梭梭种子即使萌发但幼苗也难以存活。土壤含水量对大、小粒种子幼苗苗高、根长及生物量的影响与成活率相似。
Abstract:
 This paper studied the effects of soil moisture and seed size on the germination,sprouting and sapling growth of Haloxylon ammodendron in the laboratory.The results showed that except that the seeds with small size could not geminate under 2% moisture content,all the seeds either with small or big sizes could germinate normally under other moisture conditions,and the germination rate increased with moisture content.The maximum germination rates of both big and small sized seeds appeared when the moisture content was 30%.When the moisture content was higher than 8%,both the big and small-sized seeds could germinate fast without significant differences in germinate rates.Soil moisture presented significant effects on the germination index and vital index of both big and small-sized seeds with a trend of increasing first and then decreasing,and reached the maximum when moisture content was 15%.The effects of moisture content on sapling height,root length and biomass were similar with that of the survival rate.

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备注/Memo

备注/Memo:
 收稿日期：2020-11-08修回日期：2021-07-01
基金项目：国家自然科学基金项目（31760125、 41661064、41761051、31660237)；甘肃省青年科技基金计划项目（20JR5RA092）；甘肃省林业科技项目（2017kj024，2020kj075）。
作者简介：朱淑娟，硕士，副研究员。研究方向：水土保持与荒漠化防治。E-mail：zhshj1999@163.com
*通信作者：王方琳，硕士，副研究员。研究方向：荒漠植物生态生理。E-mail:wangfanglin2008@163.com
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