Rice blast disease caused by the fungus Pyricularia oryzae is considered as one of severe diseases, leading to reduce tremendous rice productivity in its cultivated areas Thailand. Due rapid evolution and high genetic diversity pathogen, innate resistance (R) genes associated with defense mechanisms are significantly most important for breeding program create new varieties, resistant disease. T...

Nilaparvata lugens (Stål) is a typical vascular feeder, primarily sucking the phloem sap of host plants. Its feeding on rice, Oryza sativa L., plants changes the pattern of allocation of assimilates between roots and shoots, and the root:shoot (R/S) ratio of assimilates is often measured as an index of physiological responses to N. lugens. The current study investigated changes in the R/S ratio...

Multi-Environment Trials (MET) are conventionally used to evaluate varietal performance prior to national yield trials, but the accuracy of MET is constrained by the number of test environments. A modeling approach was innovated to evaluate varietal performance in a large number of environments using the rice model ORYZA (v3). Modeled yields representing genotype by environment interactions wer...

166 Scented or aromatic rice is nature’s gift to the Indian sub-continent and human kind at large. Compare to other classes of rice, aromatic rice is highly demanded and get better premium price in global market due to its pleasant aroma, superfine long slender grains with delicate curvature, remarkable linear elongation and excellent flaky soft texture on cooking. However, at present, only 12-...

Rice is the only cereal consumed as staple food mainly as whole grains by more than 50 percent people of the world. The overall cooking and eating quality of such a significant crop determines its widespread preference, acceptance and consumption. The varieties, hybrids, landraces of rice are immense in diversity not only in morphological traits but also in end-use qualities. Hence, the choice ...

This research work determined the physicochemical, cooking and milling characteristics of four Nigerian rice varieties namely Illa from Southern, Abakaliki South-East, Jemila North Ofada West.The physiochemical, properties are solely determining preference, choice economy rice. The grown in different region Nigeria were investigated for cooking, physical, chemical characteristics. result axial ...

rice is usually harvested at a high moisture content therefore it must be subjected to drying till the moisture below 14% and for longer storing till 12%. in this project a fixed laboratory dryer was selected for drying three varieties with three range of temperature 40, 50 and 60 c and two range of final moisture content 12% and 10% as completely randomized design. correlation of crack kernel ...

Genetic diversity in representative sets of high yielding varieties of rice released in India between 1970 and 2010 was studied at molecular level employing hypervariable microsatellite markers. Of 64 rice SSR primer pairs studied, 52 showed polymorphism, when screened in 100 rice genotypes. A total of 184 alleles was identified averaging 3.63 alleles per locus. Cluster analysis clearly grouped...

Introduction: Rice is the main food crop of the world, and the cultivation of rice crop during the monsoon season is hard due to the rain-induced waterlogging. Apart from this, farmers in north-eastern regions of India often implement improper crop management leading to poor yields. Thus, the development of suitable management practices under improved varieties of rice become essential for incr...

this study was carried out in order to evaluate allelic diversity of microsatellite markers in qtl region for salinity tolerance on chromosome 10 in rice and evaluation of agronomical traits of some iranian rice cultivars in salinity stress along with two tolerant (pokkali) and sensitive (ir29) check varieties, and association analysis for morphological traits using microsatellite markers.based...