effect of seed priming on germination and seedling growth of chamomile under salinity

نویسندگان

قاسم پرمون

دانشجوی کارشناسی ارشد گروه علوم و تکنولوژی بذر، دانشگاه محقق اردبیلی علی عبادی

دانشیار گروه زراعت، دانشگاه محقق ادربیلی عفت قوی عزم

دانشجوی کارشناسی ارشد گروه علوم و تکنولوژی بذر، دانشگاه محقق اردبیلی میثم میری

دانشجوی کارشناسی ارشد گروه علوم و تکنولوژی بذر، دانشگاه محقق اردبیلی

چکیده

in‏ ‏order‏ ‏to‏ ‏study‏ ‏chamomile‏ ‏tolerance‏ ‏to‏ ‏salinity‏ ‏and‏ ‏find‏ ‏a way‏ ‏to‏ ‏increase‏ ‏its‏ ‏tolerance‏ ‏afactorial‏ ‏experiment‏ ‏was‏ ‏conducted‏ ‏in‏ ‏acompletely‏ ‏randomized‏ ‏design‏ ‏with‏ ‏three‏ ‏replications‏ ‏in‏ ‏‎2012.‎‏ ‏seeds‏ ‏primed‏ ‏with‏ ‏salicylic‏ ‏acid‏ ‏and‏ ‏gibberellic‏ ‏acid‏ ‏‎(ga)‎‏ ‏at‏ ‏‎250‎‏ ‏ppm‏ ‏by‏ ‏a‏ ‏combination‏ ‏of‏ ‏the treatments‏ ‏at‏ ‏‎12‎‏ ‏and‏ ‏or‏ ‏‎24‎‏ ‏hours,‎‏ ‏‎12‎‏ ‏hours‏ ‏with‏ ‏salicylic‏ ‏acid‏ ‏after‏ ‏‎12‎‏ ‏hours‏ ‏in‏ ‏ga,‎‏ ‏and‏ ‏vice versa.‎‏ ‏the‏ ‏second‏ ‏factor‏ ‏included‏ ‏salinity‏ ‏levels‏ ‏‎(zero, 50, 100‎‏ ‏and‏ ‏‎150‎‏ ‏mm nacl). germination percentage, mean germination time, germination rate, mean daily ‎germination time, daily germination rate, plumule or root length, and seed vigor and catalase ‎and peroxidase activity were measured. results showed that salinity reduces germination ‎percentage, mean daily germination time, length of root and hypocotyl germination rate ‎whereas increased antioxidant enzyme activities. the greatest effect obtained by a ‎combination of salicylic acid-ga. the maximum activity of peroxidase belonged to salicylic ‎acid-ga and catalase activity by priming with salicylic acid at 24 hours.‎

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عنوان ژورنال:
تولید گیاهان زراعی

جلد ۶، شماره ۳، صفحات ۱۴۵-۱۶۴

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