Physiological enhancement of medicinal pumpkin seeds (Cucurbita pepo. var. styriaca) with different priming methods
Author(s):
Abstract:
In order to evaluate the effects of priming materials and duration of priming on the seed physiological enhancement and biochemical traits of germination in pumpkin seeds a factorial experiment was conducted based on a completely randomized design with three replications at the University of Mohaghegh Ardabili. Treatments were priming with water, NaCl (3%), gibberellic acid (20 mg L-1), and ascorbic acid (20 ppm) for 8, 16, and 24 hours. Seed mass as a control for comparison of different pretreatment methods was measured. Results showed that priming treatments except gibberellin application, caused an increase in radicle length. Increase in priming duration increased the plumule length of seedlings. With increasing duration of priming, radicle length also increased except for seeds primed with NaCl. Seedlings from primed seeds with gibberellin had the highest dry weight (1.08 g) when compared to other priming treatments and control. Percentage and germination rate in the seeds primed with water, gibberellic acid, and ascorbic acid increased with increasing duration of priming and it was observed that the rate of increase was even higher in ascorbic acid treatment. Superoxide dismutase, catalase, and peroxidase in sodium chloride and gibberellic acid treatments had the highest and lowest activity, respectively. The activity of these enzymes had upward trend except in halo-priming, and hormone-priming with gibberellin for 24 h was the best treatment considering enzyme activity.
Keywords:
Language:
English
Published:
Iranian Journal of Plant Physiology, Volume:5 Issue: 1, Autumn 2014
Page:
1209
magiran.com/p1497809
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یکساله به مبلغ 1,390,000ريال میتوانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
- حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران میشود.
- پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانههای چاپی و دیجیتال را به کاربر نمیدهد.
In order to view content subscription is required
Personal subscription
Subscribe magiran.com for 70 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!