نتایج جستجو برای: number of shoots
تعداد نتایج: 21178113 فیلتر نتایج به سال:
employment of solarization using the polyethylene mulch can be effective as a non-chemical approach for some control noxious weed management such as purple nutsedge (cyperus rotundus). in order to determine the effect of different levels of polyethylene mulches including one- layer clear polyethylene film, two- layer clear polyethylene film, one- layer black polyethylene film and two- layer bla...
russian knapweed (acroptilon repens l.) is a perennial weed of aceraceae that is becoming a dominant weed in suitable conditions. in order to find an ecological non-chemical approach for controlling russian knapweed and studying the possibility of using flower-eater mite (aceria acroptiloni shevchenko & kacalev) (acari: eriophyidae), a series of studies including field survey and field experime...
the present study was concerned with exploring the frequency and linguistic focus of corrective feedback types given by novice and experienced female teachers working with young learners and compared it with those of elementary classes for adults. moreover, it aimed at measuring learners’ acknowledgement of teachers’ corrective feedback in the form of uptake in relation to linguistic coverage o...
gavane-gaz-angubin (persian manna) belongs to astragalus genus (leguminosae). this plant is one of the most important species in iran for its medicinal value. considering the low propagation rate of this plant from seed and cutting, the feasibility of in-vitro propagation of this plant was investigated. effect of different types and concentrations of cytokinins such as bap, kin, and ze (0.5, 1,...
this research was aimed to investgate the effect of light quality on micropropagation of pear rootstock oh×f333. first, single nodes explants were cultured in modified ql medium containing ba at four levels (0, 0.5, 1, and 2 mg/l-1) and iaa at three levels (0, 0.1, and 1 mg/l-1) and were evaluated for shoot proliferation. then, plantlets subcultured in modified ql medium containing 1 mg/l-1 ba ...
Biofertilizers are important sources for plants' supplementing nutrition program, which have significant effect on reduction of costs and adverse effects of mineral fertilizers on the environment. This research was conducted as two different experiments. In experiment 1, effect of biofertilizer (0, 1 and 1.5 L nitroxin/ 500 m2), paclobutrazol (0, 25 and 50 mg/L) with/without pinching, and in ex...
Hypericum perforatum L. (St. Johns’ wort) is the most commercially important species of the genus Hypericum and contains a wide range of components including naphthodianthrones, phloroglucinols, tannins, xanthones, phenolic acids and essential oil. In order to establish an efficient protocol for regeneration, the effects of explant type and plant growth regulators on direct and indirect shoot r...
abstract although music possesses some kind of power and using it has been welcome by many students in language classrooms, it seems that they take a non-serious image of the lesson while listening to songs and they may think that it is a matter of fun. the main objective of the present study was to investigate whether learning a foreign language through musical texts (songs) can have an impac...
An efficient protocol was achieved for rapid propagation of Wedelia chinensis (Osbeck) Merr. through axillary bud proliferation and ex vitro rooting. Murashige and Skoog (MS) medium supplemented with benzyladenine (BA; 8.87 microM) and indole-3-butyric acid (IBA; 2.46 microM) was optimal for axillary bud proliferation, which developed a mean of 8.3 shoots/node. Excision and culture of node segm...
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