نتایج جستجو برای: number of shoots
تعداد نتایج: 21178113 فیلتر نتایج به سال:
Salinity is one of the most important problems that restrict cultivation of crops in arid and semi-arid regions. Pistachio (Pistacia vera L.) is one of the most important trees that grow in these restricts. In this greenhouse study, the effects of salinity on growth of pistachio rootstock Badami evaluated. Seedlings were grown in plastic bags containing perlite. Salinity was imposed, by adding ...
increasing academic and professional language demands around the world are not a deniable fact. the purpose of this study was to investigate english language needs and communication needs of the chemistry students at master and ph.d. levels at the iranian universities. in this research, different methods were used including un-structured interview, structured interview, and two sets of question...
There are 43 clones of Pinot Noir currently published by the National Technical Institution for Viticultural Improvement in France (ENTAV) and over 75 selections from Foundation Plant Services (FPS) at UC Davis. Viticulturists speculate that there are anywhere from 200 – 1,000 genetic variants that may exist for any given grape variety. An important part of vineyard management is crop estimatio...
A regeneration protocol ensuring a high frequency rooting of micro-shoots derived from apical and axillary buds of suckers of banana cv. Sagar was achieved by using liquid medium. When the explants were cultured on MS medium supplemented with 0.5 mg/l each of BA, Kn and NAA, a large number of shoots developed. With the progression of the number of subcultures, shoot proliferation was enhanced. ...
lemon balm (melissa officinalis l.) is an herbaceous perennial plant of the lamiaceae family that has a wide edible and medicinal uses. in this research the potential of five different explants (nodal segments, shoot tip, cotyledon, hypocotyl and leaf segments) on ms mediums supplemented with different concentrations of 6-benzylaminopurine (bap) (2.2, 4.4 and 8.8 µm) alone or in combination wit...
In order to optimize the micropropagation of Qare-Qat (Vaccinium arctostaphylus J.J.Sm), samples were collected from two regions of Iran (Asalem and Kelardasht). Anderson (AN) media containing different concentrations of zeatin (0, 0.5, 1, 2 and 4 mg L-1) and different levels of pH (4.5, 5 and 5.5) were compared. The in vitro shoots were transferred on AN media supplemented with zeatin (1 and 2...
dendrobium chrysanthum (orchidaceae) is highly valued in the ornamental industry and has important medicinal properties used in the preparation of herbal medicines in different parts of the world. however, this orchid species is getting depleted from its natural habitats due to unsystematic collections. therefore, in the present study, an efficient mass propagation protocol through direct shoot...
Cotton (Gossypium hirsutum L.) is one of the most commercially important fiber crops in the world. Compared with other crops, cotton represents a recalcitrant species for regeneration protocols. The development of efficient and rapid regeneration protocol for elite Indian cotton variety could help improve the quality characteristics and biotic or abiotic stress tolerance. Here we report a novel...
High frequency shoot regeneration from nodal and shoot tip explants in Holarrhena antidysenterica L.
Shoot tip and nodal segment explants of Holarrhena antidysenterica when cultured on MS medium containing BAP (1.0-3.0 mg/l) with NAA (0.2-1.0 mg/l) and BAP (1.0-3.0 mg/l) with Kn. (0.2-1.0 mg/l) produced multiple shoots. Maximum multiple shoots was found in MS medium supplemented with BAP (2.0 mg/l) and NAA (0.5 mg/l). Subculture on the same medium resulted in rapid shoot multiplication at an a...
this study was conducted to find out the influence of in vitro salinity on growth parameters shoot length, number of leaves, number of new buds, the chlorophyll, chlorosis and necrosis and absorption of sodium, chloride, potassium, nitrogen and phosphorus of pear (pyrus communis cv. dargazi) in vitro propagated shoots. the experiment was conducted as a complete randomized design with 5 salinity...
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