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The brown plant hopper, Nilaparvata lugens Stål (Hemiptera: Delphacidae) is an important pest of rice, Oryza sativa L. (Poales: Poaceae). The need for N. lugens-resistant rice varieties able to cope with stressful conditions obviously requires that breeders better comprehend the physiology and genetic control of N. lugens resistance. In spite of several good reviews recently published, an integrated...
The demand for superior grain quality represents a major issue in rice (Oryza sativa L.) breeding. To study the genetic basis of rice grain quality, including traits specifying grain dimension and percentage of grains with chalkiness, quantitative genetic analysis was conducted in a population of 37 introgression lines (ILs) of indica elite variety Habataki in the background of japonica cultivar Sasanishiki...
Salt stress is a major limitation for crop production in saline soil. For investigating genetic mechanism of salt tolerance at germination and seedling stage, and improving salt tolerance of sorghum, 181 recombinant inbred lines derived from Shihong137 and L-Tian were used in this study. Quantitative trait loci (QTLs) for three traits at germination stage and nine traits at seedling stage were analyzed...
Whitebacked planthopper (WBPH) along with brown planthopper (BPH) has emerged as a major pest of rice in several Asian countries. Development and cultivation of varieties resistant to both planthoppers is an ecologically acceptable strategy to manage these pests. Sinna Sivappu, a Sri Lankan landrace, was reported to be resistant to both planthoppers. While inheritance of BPH resistance has been reported,...
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