Relation between grain shedding and pedicel morphology near the abscission layer of Japonica-Indica hybrid rices bred in Korea

agricultura de regadio agronomic characters anatomia anatomie anatomy arroz arroz irrigado asia asie cereales cereals cropping systems crops cultivar cultivars cultivos cultivos de grano economic plants formas de descendencia forme de descendance glumiflorae grain crops gramineae hybride hybrids inflorescence inflorescences inflorescencias irrigated farming irrigated rice korea republic monocotyledons oryza oryza sativa pedicelos pedicels plant anatomy plantas plante plante de culture plants progeny forms rice riz sistemas de cultivo