[1]魏林源,马全林*,张晓娟,等. GA3处理对流动沙丘先锋植物沙米(Agriophyllum squarrosum)种子萌发的影响[J].西北林学院学报,2016,31(1):107-113.[doi:10.3969/j.issn.1001-7461.2016.01.20]
　WEI Lin-yuan,MA Quan-lin*,ZHANG Xiao-juan,et al. Effect of GA3 Treatment on the Germination of Agriophyllum squarrosum,A Pioneering Species on the Mobile Sand Dunes[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2016,31(1):107-113.[doi:10.3969/j.issn.1001-7461.2016.01.20]
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 GA3处理对流动沙丘先锋植物沙米(Agriophyllum squarrosum)种子萌发的影响()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第31卷
期数:
2016年第1期
页码:
107-113
栏目:
出版日期:
2016-01-31

文章信息/Info

Title:
 Effect of GA3 Treatment on the Germination of Agriophyllum squarrosum,A Pioneering Species on the Mobile Sand Dunes
文章编号:
1001-7461(2016)01-0107-07
作者:
 魏林源; 马全林*; 张晓娟; 张德魁; 樊宝丽; 陈芳; 胡小柯
 （甘肃省治沙研究所/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）
Author(s):
 WEI Lin-yuan; MA Quan-lin*; ZHANG Xiao-juan; ZHANG De-kui; FAN Bao-li; CHEN Fang; HU Xiao-ke
 (Gansu Desert Control Research Institute/State Key Laboratory of Desertification and Aeolian Sand Disaster Combating,Wuwei,Gansu 733000,China)
关键词:
 ; GA3; 沙米; 种子萌发; 发芽率
Keywords:
 ; GA3;  Agriophyllum squarrosum;  seed germinarion;  germination rate
分类号:
Q945.34
DOI:
10.3969/j.issn.1001-7461.2016.01.20
文献标志码:
A
摘要:
 作为一种重要的植物生长调节激素，GA3在植物生长发育过程中起着重要作用。为探索破除沙米种子休眠的方法，研究了不同区域、不同年份沙米种子萌发对GA3处理的响应。结果表明：1）不同区域沙米种子在GA3作用下，沙坡头种子的发芽率、发芽势最高，高达100% ，民勤种子的发芽率最低，最高仅为44% ；在各处理中，GA3 最佳浓度梯度为1.5~2.0 g·mL-1，在此处理下的种子发芽率高达100%；2）不同年份的沙米种子在GA3作用下其发芽率、发芽势表现为2006年＞2005年＞2004年＞1997年，表明种子寿命会随着时间的增加而下降；3）在不同浓度GA3处理下，不同区域或不同年份间种子发芽率差异显著（p＜0.05）。表明GA3可以破除沙米种子的休眠，对种子的萌发具有显著促进作用。
Abstract:
 As a key plant growth regulator,GA3 plays important roles in the process of plant growth and development.In order to explore the way of breaking the seed dormancy of Agriophyllum squarrosum,this paper studied the germination responses of the seeds collected from different regions and time to GA3 treatment.The results showed that,1) among the seeds collected from different regions,those from Shapotou demonstrated the highest germination rate and potential after GA3 treatment,as high as 100%,while those from Minqin exhibited the lowest germination rate,only 44%.The best concentration gradient of GA3 was 1.5~2 g·mL-1,by which the germination rate reached almost 100%.2) Among the seeds collected from different time,the germination rate and potential were in the order of 1997<2004<2005<2006,indicating that the life expectancy of the seeds decreased with time.3) Significant differences (p<0.05) in germination rate and potential were observed among the seeds from different regions or different time under different concentrations of GA3 treatment,indicating that GA3 could break the dormancy of A.squarrosum seeds and benefit its germination.

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备注/Memo

备注/Memo:
 收稿日期：2015-05-08修回日期：2015-10-09
基金项目：国家自然科学基金（31270754）。
作者简介：魏林源，女，助理工程师，研究方向：荒漠化防治。E-mail：ybhwly@126.com
*通信作者：马全林，男，研究员，研究方向：荒漠植物与荒漠植被恢复。E-mail：mql@gsdcri.com
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