نتایج جستجو برای: scirpophaga incertulas
تعداد نتایج: 103 فیلتر نتایج به سال:
Abstrak. Hama penting dalam budidaya tanaman padi salah satunya yaitu penggerek batang putih (Scirpophaga innotata). Intensitas serangan semakin meningkat dengan pemberian pupuk Nitrogen yang tinggi. Tujuan penelitian ini untuk mengetahui pengaruh dosis terhadap persentase hama dan dampaknya pertumbuhan produksi padi. Rancangan digunakan adalah Acak Lengkap (RAL) non faktorial perlakuan bentuk ...
Global warming and climate change will trigger major changes in diversity and abundance of arthropods, geographical distribution of insect pests, population dynamics, insect biotypes, herbivore plant interactions, activity and abundance of natural enemies, species extinction, and efficacy of crop protection technologies. Changes in geographical range and insect abundance will increase the exten...
Agrobacterium-mediated co-transformation is an efficient strategy to generate marker-free transgenic plants. In this study, the vectors pMF-2A∗ containing a synthetic cry2A∗ gene driven by maize ubiquitin promoter and pCAMBIA1301 harboring hygromycin phosphotransferase gene (hpt) were introduced into Minghui86 (Oryza sativa L. ssp. indica), an elite indica restorer line. Two independent transfo...
Insecticidal activity and receptor binding properties of Bacillus thuringiensis toxins to yellow and striped rice stem borers (Sciropophaga incertulas and Chilo suppresalis, respectively) were investigated. Yellow stem borer (YSB) was susceptible to Cry1Aa, Cry1Ac, Cry2A, and Cry1C toxins with similar toxicities. To striped stem borer (SSB), Cry1Ac, Cry2A, and Cry1C were more toxic than Cry1Aa ...
BACKGROUND Rice-duck cultivation is the essence of Chinese traditional agriculture. A scientific assessment of the mechanism and its capacity is of theoretical significance and practical value in improving modern agricultural technology. RESULTS The duck's secretions, excreta and their treading, pecking and predation decrease the occurrence of plant diseases, pests and weeds, enrich species d...
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