effect of application of pseudomonas fluorescent strains on yield and yield components of rapeseed cultivars
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abstract
plant growth promoting rhizobacteria has been identified as an alternative to chemical fertilizer to enhance plant growth and yield directly and indirectly. use of rhizosphere free living bacteria is one of the methods for crop production and leads to improvement of resources absorption. in order to study of yield, yield components and radiation use efficiency, under application of pgpr condition, an experiment was carried out in 2008 growing season at agriculture and natural resources research station of mashhad. the cultivars selected from three rapeseed species belong to brassica napus, brassica rapa and brassica juncea (landrace, bp.18، goldrush، parkland، hyola330، hyola401). experimental factorial design was randomized in complete block with three replications. treatments included six varieties of rapeseed and inoculations were four levels as non–inoculation, inoculation with p. fluorescens169, p. putida108 and use then together. results showed that strains of fluorescent pseudomonas bacteria had greatest effects on yield and yield components cultivars. a significant difference in the number of pods per plant and 1000 seed weight observed. the cultivars were different in all treats except 1000 seed weight. overall results indicated that application of growth stimulating bacteria in combination with different cultivars, had a positive effect growth, yield characteristics of plant varieties of rapeseed plants.
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Journal title:
پژوهش های زراعی ایرانجلد ۱۳، شماره ۲، صفحات ۲۱۱-۰
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