Iranian Journal of Seed Research
پژوهشهای بذر ایران
Iranian J. Seed Res.
Agriculture
http://yujs.yu.ac.ir/jisr
1
admin
2383-1251
2383-1480
8
10.61186/yujs
14
8888
13
fa
jalali
1395
11
1
gregorian
2017
2
1
3
2
online
1
fulltext
fa
دماهای ویژه جوانهزنی گیاه دارویی چای ترش (Hibiscus sabdariffa)
Cardinal Temperatures for Germination of Roselle (Hibiscus sabdariffa)
اکولوژی بذر
Seed Ecology
پژوهشي
Research
<p dir="RTL" style="text-align: justify;"><span style="font-family:b nazanin;"><span style="font-size:12.0pt;">گیاه چای ترش یکی از گیاهان مهم دارویی و صنعتی</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">از خانواده پنیرکیان</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">است که در سطح وسیعی از استان سیستان و بلوچستان کشت میشود. در یک مطالعه آزمایشگاهی، تأثیر درجه حرارتهای مختلف بر جوانهزنی بذرهای گیاه چای ترش مورد بررسی قرار گرفت و درجه</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">حرارتهای کمینه، بهینه و بیشینه جوانهزنی آنها، بهصورت طرح کاملاً تصادفی با چهار تکرار تعیین شد. برای این منظور تیمارهای دمایی 5، 10، 15، 20، 25، 30، 35، 40، 45 و 50 درجه سانتیگراد در نظر گرفته شد. دماهای ویژه</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">جوانهزنی</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">بذر</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">بر</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">اساس</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">سه</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">مدل</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">خطوط متقاطع،</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">مدل</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">پنج</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">پارامتری</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">بتا</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">و</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">مدل</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">چندجملهای</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">درجه دو</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">برآورد</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">شد. صفات مورداندازهگیری</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">عبارت</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">بودند</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">از درصد</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">جوانهزنی، سرعت</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">جوانهزنی</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">و</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">میانگین</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">زمان</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">جوانهزنی که اثر</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">دما</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">بر</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">تمامی</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">صفات</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">مورد</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">اندازهگیری</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">معنیدار</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">بود. نتایج</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">بهدستآمده</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">از</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">تجزیه</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">رگرسیون</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">دادهها</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">نشان داد</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">که</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">بهترین</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">مدل</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">در</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">ارتباط</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">با</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">دمای</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">ویژه</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">این</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">گیاه مدل</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">پنج</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">پارامتری</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">بتا</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">بود</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">و</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">با</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">توجه</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">به</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">نتایج</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">بهدستآمده</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">از</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">این</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">مدل،</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">میتوان گفت که دمای کمینه و بهینه چای ترش به ترتیب 04/4</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">و</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">83/29</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">درجه</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">سانتیگراد</span></span> <span style="font-family:b nazanin;"><span style="font-size:12.0pt;">است.</span></span><br>
</p>
<p style="text-align: justify;">Roselle is an important medicinal and industrial plant of the family of Malvaceae, and is planted in vast areas of Sistan and Baluchestan. In a laboratory study, the effect of varying temperatures on seed germination of <em>Hibiscus sabdariffa </em>was investigated and minimum, optimum and maximum temperatures for its germination were determined in a completely randomized design with four replications. For this purpose, temperatures 5, 10, 15, 20, 25, 30, 35, 40, 45 and 50°C were considered in each treatment. Cardinal temperatures for germination were determined consistent with three models (i.e., Intersected-lines Model, Five-Parameters Beta Model and Quadratic Polynomial Model). The traits measured were germination percentage, the speed of germination and mean germination time. The temperature effect on all the measured traits was significant. The results of the regression analysis showed that the best model in terms of cardinal point of this plant is the Five-Parameters Beta Model. Given the results of this model, the minimum and the optimal temperatures for the germination of Roselle are 4.04°C, and 29.83° C, respectively.<br>
</p>
دمای کاردینال, سرعت جوانهزنی, گیاهان دارویی, مدلهای رگرسیون غیرخطی
Cardinal temperatures, Germination rate, Plant medicinal, Regression models
129
141
http://yujs.yu.ac.ir/jisr/browse.php?a_code=A-10-78-1&slc_lang=fa&sid=1
Mahdi
Javadzadeh
مهدی
جوادزاده
sm.javadzadeh@stu.um.ac.ir
10031947532846004328
10031947532846004328
No
Ferdowsi University of Mashhad
دانشگاه فردوسی
Parviz
Rezvani Moghaddam
پرویز
رضوانی مقدم
Rezvani@um.ac.ir
10031947532846004329
10031947532846004329
Yes
Department of Agronomy, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
گروه زراعت، دانشکده کشاورزی، دانشگاه فردوسی مشهد
Mohammad
Banayan-Aval
محمد
بنایان اول
banayan@um.ac.ir
10031947532846004330
10031947532846004330
No
Ferdowsi University of Mashhad
دانشگاه فردوسی
Javad
Asili
جواد
اصیلی
asilij@mums.ac.ir
10031947532846004331
10031947532846004331
No
Mashhad University of Medical Sciences
گروه فارماکوگنوزی، دانشکده داروسازی، دانشگاه علوم پزشکی مشهد