Arid
SEED GERMINATION OF SARCOBATUS VERMICULATUS: A HALOPHYTIC SHRUB FROM GREAT BASIN DESERT
Gul, Bilquees; Khan, M. Ajmal; Weber, Darrell J.
通讯作者Gul, Bilquees
来源期刊PAKISTAN JOURNAL OF BOTANY
ISSN0556-3321
出版年2001
卷号33页码:28-37
英文摘要

Sarcobatus vermiculatus (Hook) Torrey (Chenopodiaceae; common name Greasewood) is a leaf succulent, sodium accumulating shrub usually found in saline substrates of Great Basin desert, Utah. USA. Laboratory experiments were conducted to determine the effect of salinity and temperature on the seed germination under various temperature (5-15 degrees C, 10-20 degrees C, 15-25 degrees C, 20-30 degrees C and 25-35 degrees C) and salinity (0, 200, 400, 600, 800 and 1000 mM NaCl) treatments and also determine the role of growth regulators (GA(3), kinetin, thiourea and nitrate) under salinity stress. Sarcobatus vermiculatus showed a 100% germination in non-saline controls, at all thermoperiods. Germination decreased with increase in salinity and few seeds germinated at 1000 mM NaCl. Rate of germination decreased with an increase in salinity and variation in temperature had little effect. Exposure to high salinity caused the loss of viability in the seeds only few seeds germinated at higher temperatures when transferred to distilled water. At low salinity recovery was similar at all temperatures, but at higher salinity concentrations, it was higher at higher temperatures. Salinity-enforced germination inhibition was partially alleviated by all growth regulators at higher temperature regime (25-35 degrees C) and best reversal was obtained with the application of GA3 and kinetin. Nitrate and thiourea had little effect. Rate of germination showed a similar pattern with that of percent germination. Salinity appeared to inhibit seed germination partially due to hormonal imbalance and nitrogen deficiency and this inhibition could be partially alleviated through application of germination regulating chemicals.


类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000207825700004
WOS类目Plant Sciences
WOS研究方向Plant Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/141568
作者单位Brigham Young Univ, Dept Bot & Range Sci, Provo, UT 84602 USA
推荐引用方式
GB/T 7714
Gul, Bilquees,Khan, M. Ajmal,Weber, Darrell J.. SEED GERMINATION OF SARCOBATUS VERMICULATUS: A HALOPHYTIC SHRUB FROM GREAT BASIN DESERT[J],2001,33:28-37.
APA Gul, Bilquees,Khan, M. Ajmal,&Weber, Darrell J..(2001).SEED GERMINATION OF SARCOBATUS VERMICULATUS: A HALOPHYTIC SHRUB FROM GREAT BASIN DESERT.PAKISTAN JOURNAL OF BOTANY,33,28-37.
MLA Gul, Bilquees,et al."SEED GERMINATION OF SARCOBATUS VERMICULATUS: A HALOPHYTIC SHRUB FROM GREAT BASIN DESERT".PAKISTAN JOURNAL OF BOTANY 33(2001):28-37.
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