effect of rootstock growth characteristics on persian walnut minigrafting
نویسندگان
چکیده
vegetative propagation of persian walnut encounters a major problem in iran growing conditions. this experiment was carried out to study the physiological effects of rootstock as regards herbaceousness or woodiness, and with respect to the presence of leaf on it or not on minigrafting success. throughout the study, 1.5-2.5 cm length persian walnut scions were minigrafted on herbaceous vs. softwood (with or without leaf) walnut rootstocks grown for a few weeks in controlled conditions. results indicated that the existence of leaf on the rootstock had negative effects on the success of minigrafting in either leafy or leafless rootstocks (48 and 56 percent, respectively). a significant difference was observed between herbaceous and softwood rootstocks. softwood rootstocks benefited from 56% success as compared with 46% in herbaceous ones. interaction effect was also observed between kind of rootstock and leaf existence as the existing leaf increased grafting success in herbaceous rootstocks while decreasing it in softwood ones. the negative effect of leaf on minigrafting of softwood rootstocks was in so far as it decreased grafting success from 73% in leafless rootstocks to 43% in leaf bearing ones. leaf had no significant effect on the time needed for the graft to take, yet it enhanced the graft success on herbaceous rootstocks more than it did on softwood ones. the soluble sugar content at the grafting point of leaf bearing softwood rootstock was more than that for the leafless ones, however grafting success was not dependent upon sugar content. this difference came maybe from substances made through either young or older leaves in either herbaceous or softwood rootstocks that were transported to the grafting :union: point and subsequently affecting the graft success and scion growth. the grafted plants had desirable survival and growth rates till one year past the experiments.
منابع مشابه
Effects of Scion Cultivar, Rootstock Age and Hormonal Treatment on Minigrafting of Persian Walnut
The experiment was carried out during 2015-2016, with the aim of investigating the effects of scion cultivar, rootstock age and hormonal treatments on the success of walnut minigrafting. Analysis of results showed that all studied factors were effective on graft-take and survival of minigrafted walnuts and other growth traits of the scions. The highest graft-take was observed on one-year-old ro...
متن کاملThe histology of minigrafting of Persian walnut trees cv. chandler
Compared to other techniques of propagation, grafting is the most successful and feasible technique for asexual propagation of walnut plants. There is little information about graft union formation in walnut. Therefore, the objective of this study was to evaluate histological events during graft union formation in Juglans regia L. cv. Chandler scions when minigrafted on the one-year-old seedlin...
متن کاملWalnut Rootstock Planting - KHFS
Serr variety to which all rootstocks were (!.raftedhas grown and produced on all rootstock selections although some have grown faster and produce more than others. Northern California Black Walnut (Juglans hindsii) and ~. major grow to moderate size and have good production potential. The paradox seedling, paradox cutting and Royal seedling grow to large size and have a good production potentia...
متن کاملThe Effect of Different Water Potentials on Seed Germination and Growth of some Persian Walnut Populations
In this study, seven walnut populations (Rabor, Hanza, Sardoueih, Dalfard, Bidkhan, Dehbakri, and Baft) were selected from Kerman province and compared for drought stress tolerance. Water potential between 0 and -1.5 MPa was obtained by polyethylene glycol 6000 solutions. Germination percentage, leaf relative water content (LRWC), and growth parameter of seedlings diminished with increasing dro...
متن کاملEffect of Budding Method, Rootstock Age and Cut below Budding Union on Budding Success in Persian Walnut
Budding is a good method of propagation in the Persian walnut (Juglans regia L.)., However, success of budding is low due to higher root pressure as well as the presence of phenolic compounds in the xylem sap. This study was conducted to compare various budding methods and cut below budding union on two and three-year-old Persian walnut under field conditions. The experiment was conducted based...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
علوم باغبانی ایرانجلد ۴۴، شماره ۱، صفحات ۲۱-۳۰
کلمات کلیدی
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023