نتایج جستجو برای: ریز ازدیادی micropropagation
تعداد نتایج: 9768 فیلتر نتایج به سال:
Micropropagation of banana (Musa paradisiaca Linn.) var Grand naine was carried out with media sterilized by microwave radiation. Microwave oven was effectively used to sterilize the media for in vitro shoot-multiplication of banana against autoclave. Sterilization of media in microwave oven was successfully achieved at 900W/200 ml media (4 min). In vitro shoot-multiplication was higher in the ...
مقدمه: باریجه از گیاهان بسیار ارزشمند دارویی- صنعتی بومی ایران است و از اقلام مهم صادراتی ایران محسوب می شود. تکثیر محدود بذور گیاه به علت منوکارپیک بودن آن و همین طور داشتن دوره طولانی خواب بذر، تولید انبوه این گیاه را با مشکل جدی مواجه کرده است. هدف: به منظور به حداقل رساندن دوره خواب بذر، کشت جنین در محیط درون شیشه و همین طور جهت تکثیر و ریزازدیادی، کالزایی و باززایی آن بررسی شده است. روش بر...
در این مطالعه، دو رقم توت فرنگی به نامهای کاماروزا و سلوا روی سه محیط کشت پایه موراشیگ و اسکوگ (1962) ,نیچ و نیچ (1956) و گامبورگ و همکاران (1968) بهعلاوه یک محیط کشت پیشنهادی و هر کدام با سه ترکیب هورمونی متفاوت از نظر نوع، غلظت و نسبت هورمون کشت گردیدند. آزمایشها در قالب طرح کاملاً تصادفی بهصورت فاکتوریل و برای هر رقم بهصورت جداگانه انجام شد. مریستمها بهعنوان ریزنمونه روی محیطهای کشت ق...
Canna indica Linn. (Cannaceae) is used both as medicine and food. Traditionally, various parts of C. indica are exploited to treat blood pressure, dropsy, fever, inflammatory diseases etc. However, to date there is no reliable micropropagation protocol for C. indica. We present here a regeneration technique C. indica with banana micropropagation medium (BM). BM supplemented with 3% sucrose, 0.7...
The advancements made in tissue culture techniques has made it possible to regenerate various horticultural species in vitro as micropropagation protocols for commercial scale multiplication are available for a wide range of crops. Clonal propagation and preservation of elite genotypes, selected for their superior characteristics, require high degree of genetic uniformity amongst the regenerate...
One of the most important crops cultivated around the world is coffee. There are two main cultivated species, Coffea arabica and C. canephora. Both species are difficult to improve through conventional breeding, taking at least 20 years to produce a new cultivar. Biotechnological tools such as genetic transformation, micropropagation and somatic embryogenesis (SE) have been extensively studied ...
The use of micropropagated trees has been widely extended, since micropropagation is a convenient technique of vegetative propagation that shows a number of interesting advantages, mainly for woody fruit trees. However, only few studies can be found in the literature on the field performance of micropropagated trees. In this work, the performance of different micropropagated fruit-tree rootstoc...
In vitro micropropagation of wild cherry is presently one of the main commercial ways to clonally propagate this species (Cornu and Boulay, 1986). In order to extend this technique to a large number of clones, it seems necessary to improve our knowledge of the behavior of the explants during the in vitro culture. Since plant growth regulators (PGR) play an important role in this technique (Marg...
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