干旱区生态环境知识资源中心(Arid): Using mathematical models to evaluate germination rate and seedlings length of chickpea seed (Cicer arietinum L.) to osmotic stress at cardinal temperatures

Arid

DOI	10.1371/journal.pone.0260990
	Using mathematical models to evaluate germination rate and seedlings length of chickpea seed (Cicer arietinum L.) to osmotic stress at cardinal temperatures
	Shah, Sikandar; Ullah, Sami; Ali, Sajjad; Khan, Ajmal; Ali, Muhammad; Hassan, Said
通讯作者	Ullah, S (corresponding author)，Univ Peshawar, Dept Bot, Peshawar, Khyber Pakhtunk, Pakistan.
来源期刊	PLOS ONE
ISSN	1932-6203
出版年	2021
卷号	16 期号:12
英文摘要	Cicer arietinum is the 3(rd) most important cool season legume crop growing in vast arid and semi-arid regions of the world. A lab experiment was designed using hydrothermal time model (HTT) to investigate the chickpea seed germination (SG) behavior, cardinal temperatures and germination responses across fluctuating temperatures (T-s) and water potentials (Psi(s)). Seeds of chickpea var. NIFA 1995 were germinated at six constant T-s (7, 14, 21, 28, 35 and 42 degrees C) each having the following five water potentials: 0, -0.2, -0.4-0.6 and -0.8 MPa. Germination percentage (G%) decreased significantly at (*P <= 0.05) from 86.7% at 28 degrees C in -0.2 MPa to 10% in -0.2 MPa at 7 degrees C. The germination rate (GR = 1/t(50)) against different T percentiles exhibited that linear increase was observed in the GR pattern above and below the T-o. Based on the confidence intervals of the model coefficients and (R-2: 0.96), the average cardinal temperatures were 4.7, 23 and 44.2 degrees C for the base (T-b), optimal (T-o) and ceiling (T-c) temperatures respectively. theta T1 value was observed maximum at 28 degrees C in -0.2 MPa and decreases with decreasing Psi (-0.8 MPa). In comparison with control, the theta T2 value was also highest in -0.2 MPa at 28 degrees C. The thermal time (TT) concept is well fitted to germination fraction data in distilled water with an R-2 value increasing 0.972. The hydro time constant (theta H) increased with an increase in T to T-o and then decreased when T>T-o. The ?(b(50)) irregularly varied with increasing T, sigma Psi(b) was also recorded lowest (0.166 MPa) at 28 degrees C and highest (0.457 MPa) at 7 degrees C. Based on the statistical analysis, cardinal temperatures, hydrothermal time constant (theta HTT) and germination findings the HTT gives an insight into the interactive effect of T and Psi on seed germination time courses under varying environmental conditions.
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000755175100021
WOS关键词	QUANTIFICATION ; TIME
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/375669
作者单位	[Shah, Sikandar; Ullah, Sami] Univ Peshawar, Dept Bot, Peshawar, Khyber Pakhtunk, Pakistan; [Ali, Sajjad] Bacha Khan Univ, Dept Bot, Charsadda, Khyber Pakhtunk, Pakistan; [Khan, Ajmal; Ali, Muhammad; Hassan, Said] Bacha Khan Univ, Inst Biotechnol & Microbiol, Charsadda, Khyber Pakhtunk, Pakistan
推荐引用方式 GB/T 7714	Shah, Sikandar,Ullah, Sami,Ali, Sajjad,et al. Using mathematical models to evaluate germination rate and seedlings length of chickpea seed (Cicer arietinum L.) to osmotic stress at cardinal temperatures[J],2021,16(12).
APA	Shah, Sikandar,Ullah, Sami,Ali, Sajjad,Khan, Ajmal,Ali, Muhammad,&Hassan, Said.(2021).Using mathematical models to evaluate germination rate and seedlings length of chickpea seed (Cicer arietinum L.) to osmotic stress at cardinal temperatures.PLOS ONE,16(12).
MLA	Shah, Sikandar,et al."Using mathematical models to evaluate germination rate and seedlings length of chickpea seed (Cicer arietinum L.) to osmotic stress at cardinal temperatures".PLOS ONE 16.12(2021).