IMPACT OF PRETREATMENT SALICYLIC ACID ON GERMINATION TRAITS OF PINUS ELDARICA MEDW. SEED UNDER DROUGHT STRESS

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JAVANMARD Z.; TABARI KOUCHAK SARAEI M.; AHMADLOO F.

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Journal: Journal of Wood and Forest Science and Technology Year:2016 | Volume:23 | Issue:1 Page(s): 163-176

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Title

IMPACT OF PRETREATMENT SALICYLIC ACID ON GERMINATION TRAITS OF PINUS ELDARICA MEDW. SEED UNDER DROUGHT STRESS

Author(s)

JAVANMARD Z. | TABARI KOUCHAK SARAEI M. | AHMADLOO F. | Issue Writer Certificate

Keywords

SALICYLIC ACIDQ1

PRETREATMENTQ2

SEED VIGOR INDEXQ2

KOTOWSKI COEFFICIENT OF VELOCITYQ1

GERMINATION ENERGYQ2

Abstract

Background and objectives: The purpose of this study was the effect of seed PRETREATMENT SALICYLIC ACID on germination traits of Pinus eldarica Medw. Seed under drought stress. In this relations the similar investigations with forest species is rare.Materials and methods: The experiments were carried out as factorial based on completely randomized design with 3 replications. PRETREATMENTs including combination of 4 levels of SALICYLIC ACID (0, 0.5, 1 and 2 mM for 72 hours) was subjected to 5 levels of drought stress (0, -2, -6, -10 and -14 bar by Polyethylene glycol 6000). Then the seeds were located in germinator for 40 days at 20°C, 65% relative humidity and 8.16 hours, dark/high photoperiod.Results: In all PRETREATMENTs, by increasing drought stress, germination percent, germination index, GERMINATION ENERGY, germination speed, KOTOWSKI COEFFICIENT OF VELOCITY and SEED VIGOR INDEX were reduced and mean germination time increased. Germination of control seeds was ceased in osmotic potentials>-6 bar, but seed PRETREATMENT (by all applied concentrations of SA) even up to -14 bar improved germination percent and other studied traits. The highest germination percent (88.34%) was observed in PRETREATMENT of 1 mM SA and drought stress of 0 bar, and the best germination percent (45.27%) at -14 bar level of drought stress was related to PRETREATMENT of 1 mM SA.Conclusion: regarding to application of P. edarica seedlings in plantations and urban and rural green spaces of arid and semi-arid regions, SA seed PRETREATMENT can improve its seedling production efficiency in nurseries of these regions.

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APA: Copy

JAVANMARD, Z., TABARI KOUCHAK SARAEI, M., & AHMADLOO, F.. (2016). IMPACT OF PRETREATMENT SALICYLIC ACID ON GERMINATION TRAITS OF PINUS ELDARICA MEDW. SEED UNDER DROUGHT STRESS. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, 23(1), 163-176. SID. https://sid.ir/paper/156668/en

Vancouver: Copy

JAVANMARD Z., TABARI KOUCHAK SARAEI M., AHMADLOO F.. IMPACT OF PRETREATMENT SALICYLIC ACID ON GERMINATION TRAITS OF PINUS ELDARICA MEDW. SEED UNDER DROUGHT STRESS. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY[Internet]. 2016;23(1):163-176. Available from: https://sid.ir/paper/156668/en

IEEE: Copy

Z. JAVANMARD, M. TABARI KOUCHAK SARAEI, and F. AHMADLOO, “IMPACT OF PRETREATMENT SALICYLIC ACID ON GERMINATION TRAITS OF PINUS ELDARICA MEDW. SEED UNDER DROUGHT STRESS,” JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, vol. 23, no. 1, pp. 163–176, 2016, [Online]. Available: https://sid.ir/paper/156668/en

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