STUDY ON SEED GERMINATION BEHAVIOR OF KOCHIA SCOPARIA L. SCHARD IN RESPONSE TO TEMPERATURE AND WATER POTENTIAL

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SABOURI RAD S.; KAFI M.; NEZAMI A.; BANAYAN AVAL M.

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Journal: IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH Year:2012 | Volume:18 | Issue:4 (45) Page(s): 578-592

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Title

STUDY ON SEED GERMINATION BEHAVIOR OF KOCHIA SCOPARIA L. SCHARD IN RESPONSE TO TEMPERATURE AND WATER POTENTIAL

Author(s)

SABOURI RAD S. | KAFI M. | NEZAMI A. | BANAYAN AVAL M. | Issue Writer Certificate

Keywords

GERMINATION PERCENTAGEQ2

GERMINATION RATEQ2

MEAN GERMINATION TIMEQ2

GERMINATION INDEXQ2

KOCHIA SCOPARIAQ2

Abstract

Kochia (Kochia scoparia) is an annual halophyte and drought resistant plant that can be irrigated with saline water and has the capability of being used as a valuable source of forage in ecosystems under drought and salinity stress. In order to evaluate germination characteristic of KOCHIA SCOPARIAunder different temperatures and water potentials, an experiment was conducted in 2009 at Physiology Lab of Ferdowsi University of Mashhad. Experiment was conducted in a completely randomized design with 4 replications. Treatments included 9 levels of water potential (-0.25, -0.5, -0.75.-1, -1.25, -1.5, -1.75 and -2 MP) and also the treatment not exposed to drought (control) and 8 temperature levels (5, 10, 15, 20, 25, 30, 35 and 40oC). The results of variance analysis showed that different levels of temperature and water potential had a significant effect (P<0.01) on GERMINATION PERCENTAGE, GERMINATION RATE, MEAN GERMINATION TIME and GERMINATION INDEX. Interaction effect between temperature and water potential on the mentioned parameters was also significant. The highest percentage of germination occurred at 20-25oC and 4 primary levels of water potential with no significant differences between each other. Also, the highest GERMINATION RATE occurred at 25oC and in control treatment. With decrease of water potential, GERMINATION RATE also decreased in all temperature treatments. In addition, decrease in water potential caused an increase in MEAN GERMINATION TIME. The lowest MEAN GERMINATION TIME was observed at 25oC equivalent to 1.07 day. The highest GERMINATION INDEX occurred at 25oC and in control treatment. However, seeds of Kochia are able to germinate in a wide range of temperature and water potential.

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APA: Copy

SABOURI RAD, S., KAFI, M., NEZAMI, A., & BANAYAN AVAL, M.. (2012). STUDY ON SEED GERMINATION BEHAVIOR OF KOCHIA SCOPARIA L. SCHARD IN RESPONSE TO TEMPERATURE AND WATER POTENTIAL. IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH, 18(4 (45)), 578-592. SID. https://sid.ir/paper/107158/en

Vancouver: Copy

SABOURI RAD S., KAFI M., NEZAMI A., BANAYAN AVAL M.. STUDY ON SEED GERMINATION BEHAVIOR OF KOCHIA SCOPARIA L. SCHARD IN RESPONSE TO TEMPERATURE AND WATER POTENTIAL. IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH[Internet]. 2012;18(4 (45)):578-592. Available from: https://sid.ir/paper/107158/en

IEEE: Copy

S. SABOURI RAD, M. KAFI, A. NEZAMI, and M. BANAYAN AVAL, “STUDY ON SEED GERMINATION BEHAVIOR OF KOCHIA SCOPARIA L. SCHARD IN RESPONSE TO TEMPERATURE AND WATER POTENTIAL,” IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH, vol. 18, no. 4 (45), pp. 578–592, 2012, [Online]. Available: https://sid.ir/paper/107158/en

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