SEED GERMINATION MODELING OF LEMON BALM AS AFFECTED BY TEMPERATURE AND WATER POTENTIAL: HYDROTHERMAL TIME MODEL

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NOZARPOUR ELHAM; Tavakkol Afshari Reza; SOLTANI ELIAS; MAJNON HOSEINI NASER

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Journal: JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE) Year:2017 | Volume:18 | Issue:4 Page(s): 881-892

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Title

SEED GERMINATION MODELING OF LEMON BALM AS AFFECTED BY TEMPERATURE AND WATER POTENTIAL: HYDROTHERMAL TIME MODEL

Author(s)

NOZARPOUR ELHAM | Tavakkol Afshari Reza | SOLTANI ELIAS | MAJNON HOSEINI NASER | Issue Writer Certificate

Keywords

CARDINAL TEMPERATUREQ2

GERMINATIONQ2

HYDROTHERMAL TIME MODELQ2

MELISSA OFFICINALIS LQ1

SEGMENTED FUNCTIONQ2

Abstract

This study was conducted to evaluate the effects of water potential and temperature on seed GERMINATION rate of lemon balm (Mellissa officinalis L.). The seeds were incubated in various temperatures of 20, 23, 25, 27, 30 and 32ºC and water potentials of 0, -0.2, -0.4, -0.6 and -0.8 MPa in three replications. This study was conducted in Seed Laboratory, College of Agriculture and Natural Resources, University of Tehran in Karaj in 2015. Data were analyzed using combined statistical design in a completely randomized design in several places. SEGMENTED FUNCTION was evaluated to describe CARDINAL TEMPERATUREs. The base, optimum and ceiling temperatures of lemon balm were 17.30, 30.9 and 35ºC under optimum conditions of water potential, respectively. The base temperature increased gradually with decreasing water potential and increased to 21.25oC in -0.8 MPa water potential. The optimum temperature decreased to about 28°C by decreasing water potential to -0.6 MPa. Lemon balm seeds did not germinated in 5, 10, 15 and 35°C in any moisture levels. The R2 value of HYDROTHERMAL TIME MODEL was 0.55. The hydrothermal value was 71.41 MPa oday and According to this model seed GERMINATION of lemon balm needs to 71.41 MPa oday. The results can be used for future studies on the seed biology and ecology of lemon balm.

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APA: Copy

NOZARPOUR, ELHAM, Tavakkol Afshari, Reza, SOLTANI, ELIAS, & MAJNON HOSEINI, NASER. (2017). SEED GERMINATION MODELING OF LEMON BALM AS AFFECTED BY TEMPERATURE AND WATER POTENTIAL: HYDROTHERMAL TIME MODEL. JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE), 18(4 ), 881-892. SID. https://sid.ir/paper/209619/en

Vancouver: Copy

NOZARPOUR ELHAM, Tavakkol Afshari Reza, SOLTANI ELIAS, MAJNON HOSEINI NASER. SEED GERMINATION MODELING OF LEMON BALM AS AFFECTED BY TEMPERATURE AND WATER POTENTIAL: HYDROTHERMAL TIME MODEL. JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE)[Internet]. 2017;18(4 ):881-892. Available from: https://sid.ir/paper/209619/en

IEEE: Copy

ELHAM NOZARPOUR, Reza Tavakkol Afshari, ELIAS SOLTANI, and NASER MAJNON HOSEINI, “SEED GERMINATION MODELING OF LEMON BALM AS AFFECTED BY TEMPERATURE AND WATER POTENTIAL: HYDROTHERMAL TIME MODEL,” JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE), vol. 18, no. 4 , pp. 881–892, 2017, [Online]. Available: https://sid.ir/paper/209619/en

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