Antagonism between Fusarium udum Butler causing wilt of pigeon-pea (Cajanus cajan (L.) Millsp.) and the saprophytic microflora of the root region of the host was studied with reference to colony interaction, hyphal interference, volatile and non-volatile metabolites and staling growth products. Studies were extended to screen potential antagonists against the wilt pathogen in soil.Aspergillus flavus, A. niger, A. terreus, Penicillium citrinum and Micromonospora globosa (an actinomycete) were antagonistic against F. udum, whereas the pathogen parasitized and killed Aspergillus luchuensis, Cunninghamella echinulata, Curvularia lunata, Mortierella subtilissima and Syncephalastrum racemosum.
The genetic parameters controlling the expression of seed yield and the yield components have been studied using both generation mean and triple test cross (TTC) analyses in two crosses of field pea. From generation mean analysis, it is obvious that in addition to significant estimates of additive and dominance components, epistatic components of mean [({) and (I) types] were also important and duplicate type of epistasis was predominant for all the traits in both sets of crosses. In the TTC analysis, the major genetic component of variance was the additive component, though the dominance component was also found to be significant. There was evidence of epistasis for most of the characters studied. In fact, the overall epistasis (i type) was the major component of epistasis, but the parameter F was found in the non-significant range. The mean performance of the characters studied was higher in randomly-mated biparental progenies (BIPs) but there were more desirable transgressive segregants in the TTC population. Thus the genetic information obtained from both analyses seems to be complementary rather than alternative modes of inheritance in governing the expression of these useful economic traits.
T h e q u a l i t a t i v e a n d q u a n t i t a t i v e n a t u r e of microfungi in soil after b u r n i n g was studied for seven m o n t h s . T h e n u m b e r s of fungal species a n d t h e i r colonies in soil were reduced i m m e d i a t e l y after b u r n i n g b u t r e t u r n e d to t h e i r n o r m a l s t a t e after a b o u t a couple of m o n t h s . Species of Aspergillus a n d Penicillium were t h e first to colonize t h e b u r n t soil. Trichoderma viride a p p e a r e d after two m o n t h s . Penicillium spp. decreased c o n s i s t e n t l y w i t h t i m e whereas T. viride followed t h e reverse p a t h . Several o t h e r species a p p e a r e d in due course as a n d w h e n ecological conditions b e c a m e suitable for t h e m .
The main objective of the research is to identify the impact of demographic factors on purchase intention. The study examine whether there is any significant differences on consumers’ purchase intention of television across gender, age groups and education level. Primary data has been used in the study. The structured questionnaire has been used for collection of primary data. Convenient sampling technique has been used to collect information from the respondents and 394respondents have been taken from customers buying Television in Kathmandu. The sampling location for the research has been allocated in show room, colleges and houses in Kathmandu. Age, gender and level of education have been taken as independent variables and purchase intention has been taken as dependent variable. Percentage has been used to analyze the purchase intention of respondents; independent sample t-test and ANOVA Test have been used to analyze the collected data and to draw valid conclusions by using SPSS. The result of independent sample t-test showed that there is no significant difference on purchase intention between male and female in buying television in Nepalese market. The result of ANOVA Test showed that there is no significant difference on purchase intention among different age groups. But the result of ANOVA Test showed that there is significant difference on purchase intention among different level of education.
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