Domestication is the hallmark of evolution and civilization and harnesses biodiversity through selection for specific traits. In regions where domesticated lines are grown near wild relatives, congeneric sources of aggressive weedy genotypes cause major economic losses. Thus, the origins of weedy genotypes where no congeneric species occur raise questions regarding management effectiveness and ...

this study examined the nature and patterns of rice consumption in nigeria, using kwara state as a case study. the study methodology comprised a two stage sampling technique which was used to survey 110 rice consumer households across two villages and six towns in kwara state. analytical tools used in the study include descriptive statistics and the multinomial logit model. the major factors th...

More than 60% of phosphorus (P) taken up by rice (Oryza spp.) is accumulated in the grains at harvest and hence exported from fields, leading to a continuous removal of P. If P removed from fields is not replaced by P inputs then soil P stocks decline, with consequences for subsequent crops. Breeding rice genotypes with a low concentration of P in the grains could be a strategy to reduce mainte...

Soil salinity and alkalinity adversely affects the productivity and grain quality of rice. The grain quality of 19 rice genotypes characterized as salt tolerant (T), semi-tolerant (ST) and sensitive (S) was assessed in lysimeters containing saline and highly alkaline soils. Head rice recovery was reduced by salinity stress whereas it was not affected by alkalinity stress. The ratio of length to...

Application of mycorrhiza-biofertilizer and intercropping with legume crops could improve performance yield red-rice grown onraised-beds under aerobic irrigation systems, but weeds became a serious problem, which needs more frequent weeding. A Split Split-Plot (SSP) experiment was designed to examine synergistic effects rice-straw mulch application on yieldof several black rice promising-lines ...

In this paper, we presented the information on growth and yield parameters of rice genotype (BPT5204 and IR64) in field condition. Investigated strains are related to the research article "Assessment of zinc solubilizing potentiality of Acinetobacter sp. isolated from rice rhizosphere" [1]. The article describes the inoculation effect of Acinetobacter sp. on rice genotypes. The statistical anal...

Genetic Variation of Some Agronomic Characteristics and Grain Quality Traits Rice Mutant Genotypes

Rice blast is one of the most devastating rice diseases and continuous resistance breeding is required to control the disease. The rice blast resistance gene Pi54 initially identified in an Indian cultivar confers broad-spectrum resistance in India. We explored the allelic diversity of the Pi54 gene among 885 Indian rice genotypes that were found resistant in our screening against field mixture...

In China, total Hg (HgT) and methylmercury (MeHg) were quantified in rice grain grown in three sites using water-saving rice cultivation methods, and in one Hg-contaminated site, where rice was grown under flooded conditions. Polished white rice concentrations of HgT (water-saving: 3.3±1.6 ng/g; flooded: 110±9.2 ng/g) and MeHg (water-saving 1.3±0.56 ng/g; flooded: 12±2.4 ng/g) were positively c...