Can natural variation in grain P concentrations be exploited in rice breeding to lower fertilizer requirements?

Can natural variation in grain P concentrations be exploited in rice breeding to lower fertilizer requirements?

Agricultural usage of phosphorus (P) is largely driven by the amount of P removed from fields in harvested plant matter as offtake needs to be balanced by P fertilizer application. Reducing P concentration in grains is a way to decrease P offtake and reduce P fertilizer requirements or soil P mining where insufficient P is applied. Our objective was to assesses the genotypic variation for grain...

Unused Natural Variation Can Lift Yield Barriers in Plant Breeding

Natural biodiversity is an underexploited sustainable resource that can enrich the genetic basis of cultivated plants with novel alleles that improve productivity and adaptation. We evaluated the progress in breeding for increased tomato (Solanum lycopersicum) yield using genotypes carrying a pyramid of three independent yield-promoting genomic regions introduced from the drought-tolerant green...

Natural variation OsCd 1 V 449 contributes to reducing cadmium accumulation in rice grain 1

1Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, 5 P. R. China 6 2Key Lab of Crop Heterosis and Utilization, Beijing Key Lab of Crop Genetic Improvement, Ministry 7 of Education, China Agricultural University 8 3College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China 9 4Key Laboratory of Agro-Ecolo...

Linking differential domain functions of the GS3 protein to natural variation of grain size in rice.

Grain yield in many cereal crops is largely determined by grain size. Here we report the genetic and molecular characterization of GS3, a major quantitative trait locus for grain size. It functions as a negative regulator of grain size and organ size. The wild-type isoform is composed of four putative domains: a plant-specific organ size regulation (OSR) domain in the N terminus, a transmembran...

Variation in the response of barley cultivars to nirrogen fertilizer