نتایج جستجو برای: and air and medium autoclaveable transfer pipes in vitro stock plantlets from seeds and liquid ms basal medium supplemented with 15 mgl
تعداد نتایج: 23189589 فیلتر نتایج به سال:
there are two major theories of measurement in psychometrics: classical test theory (ctt) and item-response theory (irt). despite its widespread and long use, ctt has a number of shortcomings, which make it problematic to be used for practical and theoretical purposes. irt tries to solve these shortcomings, and provide better and more dependable answers. one of the applications of irt is the as...
monumental changes occurring on a daily basis have altered the world into a global village of expanding technology and shrinking geography in which preparing language learners for intercultural communication seems to be a sine qua non for modern language education. employing a cross-sectional design in its first phase, this study investigated the intercultural sensitivity and language proficien...
The present study was conducted to test the effect of Ascophyllum nodosum extract on the growth of Robinia pseudoacasia L., ornamental tree. In vitro and ex vitro clonal multiplication of Robinia pseudoacasia L. was achieved using embryonic axes and seeds as explants, respectively. Factors affecting shoot and root production of R. pseudoacasia L. were investigated by comparing various growth re...
An investigation was carried out to decipher the effect of genotypes and concentrations growth regulators for callus induction subsequent plant regeneration from mature seeds rice. Two local rice cultivars viz. Nayanmony Kalomona two 2, 4-D NAA were used evaluate their performance. The cultured under aseptic condition onto MS basal medium at varying combinations (1.0, 1.5 2.0 mgL- 1) (0.0, 0.5 ...
Seeds of Bauhinia acuminata L. were used as an experimental material for micropropagation. The effect of growth regulators concentrations on morphogenetic development was studied. Seeds were germinated on MS medium supplemented with GA3 (0.10, 1.0 and 2.0 mgL -1 ) and without GA3. Satisfactory germination was observed at media with 1.0 mgL -l GA3. Subsequent propagation from plantlet was perfor...
cohesion is an indispensable linguistic feature in discourse analysis. lexicald such a differe cohesion and conjunction in particular as two crucial elements to textual cohesion and comprehension has been the focus of a wide range of studies up to now. yet the relationship between the open register and cohesive devices has not been thoroughly investigated in discourse studies. this study concen...
abstract the current study examined the role of emotional intelligence and motivation on language learning of efl learners in iranian context. the participants of this study were 162 female and 100 male junior high school students. these participants were selected by convenient sampling method. to carry out the study two questionnaires were administered to the participants. first, the adap...
the present paper offers a postcolonial reading of two of the best novels by v. s. naipaul – half a life and the mimic men – in five chapters. the focus of this research is on different notions of postcolonial criticism and their application on the two novels as discussed from homi bhabha’s and frantz fanons points of view. having introduced the life and literary career of v. s. naipaul in th...
In vitro studies were carried out with Ochradenus arabicus for rapid micropropagation from embryo explants. Direct regeneration of shoot buds of O. arabicus was observed in MS basal medium supplemented with varying levels of either benzyladenine (BA) or kinetin (Kn). Embryos produced multiple shoots on Murashige and Skoog’s medium (MS) containing 1.0 μM BA after 25 days of inoculation. Number o...
Plantlet Regeneration through Indirect Organogenesis of Flame Gold Tree (Koelreuteria elegans Laxm.)
Koelreuteria elegans, popularly known as “Flame Gold” is an ornamental tree. In vitro callus induction and regeneration from various explants (eaf segments and cotyledonary leaf) were studied on modified MS medium. The highest callus induction rate (80%) and multiplication was obtained in 2 mg/l 2,4-D from leaf segments. Calli transferred in 1.5 mg/l BAP resulted in efficient shoot regeneration...
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