نتایج جستجو برای: striped rice stem borer
تعداد نتایج: 353188 فیلتر نتایج به سال:
Stem borer resistant transgenic parental lines, involved in hybrid rice, were produced by Agrobacterium-mediated gene transfer method. Two pSB111 super-binary vectors containing modified cry1Ab/cry1Ac genes driven by maize ubiquitin promoter, and herbicide resistance gene bar driven by cauliflower mosaic virus 35S promoter were, used in this study. Embryogenic calli after co-cultivation with Ag...
Transgenic approach offers an attractive alternative to conventional techniques for the genetic improvement of Basmati rice because they enable the introduction of one or more genes into a leading cultivar without affecting its genetic background. During the last ten years, a rapid progress has been made towards the development of transformation methods in rice. Several transformation methods i...
in order to develop a high yielding rice cultivar with optimum cooking quality, a cross was conducted between two rice cultivars khazar, high yielding and resistant to blast disease and daylamani tarom, with good cooking quality in 1990. forty pure lines were selected and compared for high grain yield in 1996. ten selected lines together with two check cultivars dasht and onda were tested in ad...
Many varieties of transgenic rice are under development in countries where wild and weedy relatives co-occur with the crop. To evaluate possible risks associated with pollen-mediated transgene dispersal, we conducted a two-year survey in Vietnam to examine overlapping flowering periods of rice (Oryza sativa L.), weedy rice (O. sativa), and wild rice (O. rufipogon Griff.), all of which are inter...
Abstract Pests and diseases are significant factors that affecting global rice production. There is a need pests have continuously been controlled, in order to solve the pest disease problem. The aim of this study was observe population dynamics infestation lowland field during different cropping seasons. data Pati District, Central Java Province, Indonesia Rainy Season (RS) 2018/2019, Dry (DS)...
Rice (Oryza sativa L.,) plants release a complex profile of volatile organic compounds. Present study investigates the differences in compounds from four rice landraces viz., Karuthakar, Norungan, Thavala Kanan and Varappu Kudaichan each under conditions like healthy, mechanically damaged, ones infested by brown plant hopper Nilaparvata lugens Stal yellow stem borer Scirpophaga incertulas (Wlk....
Variability in the cultivated germplasm for economic traits such as resistance to rice tungro virus, sheathblight, yellow stem borer, drought and salt tolerance is limited. This necessitated search for the genes in secondary and tertiary gene pool of genus Oryza. Fortunately, wild species are an important reservoir ofuseful genes for resistance to major disease, pest and tolerance t...
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