abstract successful presence of indian and pakistani rice in iran’s market due to having similar quality with the domestic rice, extensive advertisement, and good packaging has faced rice production in iran with a big challenge. assuming that the attractions of iranian consumers toward these imported rice varieties are a signal of changes in the preferences of the domestic consumers in favor of...

dietary intake is the most important route of exposure to heavy metals for most people. rice is a staple food for iranians that, if polluted, threatens public health. cooking process may affect heavy metals content of rice. in this study, concentrations of cadmium (cd), lead (pb), chromium (cr), nickel (ni) and cobalt (co) were measured in 3 brands of imported rice available in shiraz-iran mark...

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...

in this study, the effect of the speed of the mill-rotor during the whitening process was evaluated for the milling properties of two varieties of rice in fars province. a split plot design with five replications and the duncan test were used for statistical analysis. two varieties of paddy rice, amol-3 and kamfiruzi, and five mill-rotor speeds, 550, 600, 650, 700 and 750 rpm, were selected as ...

Assessment of genetic diversity and individual relationships in rice (Oryza sativa) germplasm collections seems to be necessary for future rice breeding program. In order to understand genetic relationships of 30 rice genotypes, nine morphological traits, seven physicochemical properties and twelve RAPD primers were used for study of 30 rice genotypes. Among morphological traits, numbe...

This study examined the adoption prospects and challenges of rice-cum-fish production technology among rice and fish farmers in selected States in southern Nigeria (Delta, Edo, Lagos and Ondo States). Using questionnaire, data was sought from 720 sampled rice and fish farmers in the selected States. The data were analysed using descriptive statistics, logit regression. Results showed that more ...

The rice leaf folder, Cnaphalocrocis medinalis (Guenée), is one of the most destructive rice pests in Asian countries. Rice varieties resistant to the rice leaf folder are generally characterized by high silicon content. In this study, silicon amendment, at 0.16 and 0.32 g Si/kg soil, enhanced resistance of a susceptible rice variety to the rice leaf folder. Silicon addition to rice plants at b...

BACKGROUND The major challenge of cultivating genetically modified (GM) rice (Oryza sativa) at the commercial scale is to prevent the spread of transgenes from GM cultivated rice to its coexisting weedy rice (O. sativa f. spontanea). The strategic development of GM rice with a built-in control mechanism can mitigate transgene spread in weedy rice populations. METHODOLOGY/PRINCIPAL FINDINGS An...

Although the discovery of aquaporins in plants has resulted in a paradigm shift in the understanding of plant water relations, the relationship between aquaporins and drought resistance still remains elusive. From an agronomic viewpoint, upland rice is traditionally considered as showing drought avoidance. In the investigation of different morphological and physiological responses of upland ric...