Arid
DOI10.3390/life12020209
Using Halothermal Time Model to Describe Barley (Hordeumvulgare L.) Seed Germination Response to Water Potential and Temperature
Ullah, Abd; Sadaf, Sadaf; Ullah, Sami; Alshaya, Huda; Okla, Mohammad K.; Alwasel, Yasmeen A.; Tariq, Akash
通讯作者Tariq, A
来源期刊LIFE-BASEL
EISSN2075-1729
出版年2022
卷号12期号:2
英文摘要Barley (Hordeum vulgare L.) is a salt-tolerant crop with considerable economic value in salinity-affected arid and semiarid areas. In the laboratory experiment, the halothermal time (HaloTT) model was used to examine barley seed germination (SG) at six constant cardinal temperatures (Ts) of 15, 20, 25, 30, 35, and 40 degrees C under five different water potentials (psi s) of 0, -0.5, -1.5, -1.0, and -2.0 MPa. Results showed that at optimum moisture (0 MPa), the highest germination percentage (GP) was recorded at 20 degrees C and the lowest at 40 degrees C. Moreover, GP increased with the accelerated aging period (AAP) and significantly (p <= 0.05) decreased with high T. In addition, with a decrease of psi from 0 to -0.5, -1, 1.5, and -2.0 MPa, GP decreased by 93.33, 76.67, 46.67, and 33.33%, respectively, in comparison with 0 MPa. The maximum halftime constant (theta Halo) and coefficient of determination (R2) values were recorded at 20 degrees C and 30 degrees C, respectively. The optimum temperature (T-o) for barley is 20 degrees C, base psi of 50th percentile (psi b (50)) is -0.23 Mpa, and standard deviation of psi b (sigma psi b) is 0.21 MPa. The cardinal Ts for germination is 15 degrees C (T-b), 20 degrees C (T-o), and 40 degrees C (T-c). The GP, germination rate index (GRI), germination index (GI), coefficient of the velocity of germination (CVG), germination energy (GE), seed vigor index I and II (SVI-I & II), Timson germination index (GI), and root shoot ratio (RSR) were recorded maximum at 0 MPa at 20 degrees C and minimum at -2.0 MPa at 40 degrees C. Mean germination time (MGT) and time to 50% germination (T 50%) were maximum at -2 MPa at 40 degrees C, and minimum at 20 degrees C, respectively. In conclusion, the HaloTT model accurately predicted the germination time course of barley in response to T, psi, or NaCl. Therefore, barley can be regarded as a salt-tolerant plant and suitable for cultivation in arid and semi-arid regions due to its high resistance to salinity.
英文关键词barley seed germination halothermal time model cardinal temperatures water potential
类型Article
语种英语
开放获取类型gold, Green Published
收录类别SCI-E
WOS记录号WOS:000762710800001
WOS关键词SALT TOLERANCE ; SALINITY STRESS ; OSMOTIC-STRESS ; SODIUM ; GROWTH ; PLANTS
WOS类目Biology ; Microbiology
WOS研究方向Life Sciences & Biomedicine - Other Topics ; Microbiology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/393750
推荐引用方式
GB/T 7714
Ullah, Abd,Sadaf, Sadaf,Ullah, Sami,et al. Using Halothermal Time Model to Describe Barley (Hordeumvulgare L.) Seed Germination Response to Water Potential and Temperature[J],2022,12(2).
APA Ullah, Abd.,Sadaf, Sadaf.,Ullah, Sami.,Alshaya, Huda.,Okla, Mohammad K..,...&Tariq, Akash.(2022).Using Halothermal Time Model to Describe Barley (Hordeumvulgare L.) Seed Germination Response to Water Potential and Temperature.LIFE-BASEL,12(2).
MLA Ullah, Abd,et al."Using Halothermal Time Model to Describe Barley (Hordeumvulgare L.) Seed Germination Response to Water Potential and Temperature".LIFE-BASEL 12.2(2022).
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