EFFECT OF TREATMENT ON GERMINATION OF SEEDS OF LAURUS NOBILIS L NATURAL STANDS IN LATAKIA (KASSAB) AND HAMA (ALGHAB).
Abstract
This research carried out in during (2018 -2019) in Latakia (kassab) and Hama (AL ghab) Research carried out in (2018-2019) in two different geographical areas and climatic in Latakia (kassab) and Hama(ALghab).
Laurus nobilis, L of fruits were collected from forest stands in the fall of (2018)
Experiment was applied using (1296) seeds which were divided into five groups at fallows:
(1)Control, (2) cold stratified at +4 degrees for (25-50) days,(3) Scarification mechanical,(4) Seeds without pericarp and epicarp , (5) Treatment of GA3 (1000 - 3000) ppm
Study showed as follow:
Treatment seed without pericarp and epicarp to surpass of rest treatments with rate (81.48-88.88)% while in treatment of GA3 (1000-3000)ppm germination increased from (77.77)% to (70.37)% due to increasing acid concentration and can play a negative role in stimulating pulp on germination.
Percentage or germination increased from (14.8)% in Scarification mechanical to (88.88)% of treatment ( Seeds without pericarp and epicarp, Results suggested that seed dormancy was mainly due to pericarp and epicarp perhaps inhibitors linked to seed coat.
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