Knowledge Resource Center for Ecological Environment in Arid Area
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
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ISSN | 0556-3321 |
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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