effect of osmopriming on germination indices of salinity-affected seeds of pinus eldarica medw
نویسندگان
چکیده
to answer this question that if osmopriming improve germination indices in salinity-affected seeds of pinus eldarica medw., a factorial experiment in randomized completely design was carried out with three replications. osmotic treatments were applied in 5 levels (-2, -4, -6 and -8 bar for 72 hours and non-primed) by polyethylene glycol (peg) and salinity treatments in 8 levels (0, 40, 80, 120, 160, 200, 240 and 280 mm) by sodium chloride. the results showed that osmopriming, salinity and their interaction had significant effect on seed germination indices. germination of non-primed seeds ceased in salinity stress higher than 160 mm, but primed seeds were able to germinate in 280 mm. in all salinity levels, primed seeds (particularly, -2 bar) had highest germination speed, germination energy and vigor index and lower variation for relative germination percentage, showing the positive effect of osmopriming technique on improving germination indices in salinity-affected seeds of pinus eldarica.
منابع مشابه
Effect of priming on germination indices of deteriorated seeds of pumpkin (Cucurbita pepo) in salinity conditions
In order to investigate the effect of priming on germination characteristics of aged pumpkin seeds, under salinity stress an experiment was performed as a factorial design in a completely randomized design with 4 replications. Experiment was done in the Seed Science and Technology Laboratory of the Faculty of Agriculture and Natural Resources, Mohaghegh Ardabili University. Treatments included ...
متن کاملeffect of oral presentation on development of l2 learners grammar
this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...
15 صفحه اولthe effect of explicit teaching of metacognitive vocabulary learning strategies on recall and retention of idioms
چکیده ندارد.
15 صفحه اولthe effect of consciousness raising of sociolinguistic skills on speaking ability of iranian efl learners
abstract the main purpose of this study was to investigate whether there was any significant difference between the speaking achievement of learners who were trained by means of consciousness raising of sociolinguistic skills and that of learners who were trained without the above mentioned task. the participants of this study consist of 60 intermediate level students participating languag...
the effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
the washback effect of discretepoint vs. integrative tests on the retention of content in knowledge tests
در این پایان نامه تاثیر دو نوع تست جزیی نگر و کلی نگر بر به یادسپاری محتوا ارزیابی شده که نتایج نشان دهندهکارایی تستهای کلی نگر بیشتر از سایر آزمونها است
15 صفحه اولمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
جنگل و فرآورده های چوبجلد ۶۸، شماره ۱، صفحات ۷۷-۸۸
کلمات کلیدی
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023