نتایج جستجو برای: rhizoctonia solani in bean and fusarium oxysporum were studied also
تعداد نتایج: 21763348 فیلتر نتایج به سال:
current studies in second language (l2) learning have revealed the positive role of corrective feedback (cf) in both oral and written forms in different language features. the present study was an attempt to investigate the effect of both direct and indirect written corrective feedback (wcf) on the use of grammatical collocations in l2 writing. the study also sought to examine whether the effec...
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...
this is an original study on the effect of a polyisobutylene – polydimethylsiloxane (pibpdms) block copolymer modifier used as an interfacial active agent on the dynamics behaviour of single newtonian drops suspended in a polyisobutylene (pib) newtonian matrix. the results were divided in two sections. the first part included the experiments carried out on the non-modified and 2% block cop...
Aqueous leaf extract of four different species of Datura viz. D.stramonium L., D. innoxia Mill.Gard, D. metal L. and D. ferox L. Amoen were tested for their antifungal activity against phytopathogenic molds in terms of mycelial growth of Alternaria solani and Fusarium oxysporum f.sp. udum causing early blight of tomato and wilt of pigeonpea respectively. The extract of Datura sp. at 5, 10, 15 a...
1. to determine whether difference in birth body mass influenced growth performance in pipistrellus kuhlii we studied a total of 12 captive-born neonates. bats were assigned to two body mass groups: light birth body mass (lbw: 0.89 ± 0.05, n=8) and heavy birth body mass (hbw: 1.35 ± 0.08, n=4). heavier body mass at birth was associated with rapid postnatal growth (body mass and forearm length) ...
This study was carried out to evaluate the in vitro and in vivo antifungal efficacy of essential oil and extracts derived from the flower and leaves of Magnolia liliflora, respectively, against plant pathogenic fungi. The oil (750 μg disc) and various leaf extracts such as hexane, chloroform, ethyl acetate and methanol (1,500 μg disc) revealed promising antifungal effects against Botrytis ciner...
bean root rot caused by plant pathogenic fungus, fusarium solani, is considered one of the most important diseases of bean in the world and in iran. because of economic importance of bean and the lack of information on population diversity of the pathogen in zanjan province, a research was conducted to study phenotypic, genotypic and pathogenicity variation of pathogen isolates and to assess pa...
abstract the influence of cation?? and anion?? interactions on the strength and nature of n…h hydrogen bond has been investigated by quantum chemical calculations in s-triazine…3hf complex. ab initio calculations were performed at mp2/6-311++g(d,p) level of theory. the natural bond orbital (nbo) analysis and the bader’s quantum theory of atoms in molecules (aim) were also used to elucidate t...
abstract valerian medicinal plant (valeriana officinalis) is a perennial succulent plant that is natural lenitive and good ingrained of diazepam. this study was conducted in order to identify the fungal agents of rhizome and root rot of valerian. infected plant samples that showed the symptoms of rotting and necrosis were collected from karaj and used in order to isolate disease agents. symptom...
Plant lipid transfer proteins (LTPs) are members of the pathogenesis-related proteins (PR-14) and some of them exhibit activity against phytopathogenic fungi. To investigate whether rice LTP2 plays a role in antifungal activity, the coding region of an Iranian rice Ltp2 gene was cloned into expression vector pET24-d(+) and then expressed in Escherichia coli Rosetta strain (DE3). The potential a...
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