Huong thom 1 is a Chinese purebred rice variety, selected and purified by ThaiBinh Seed Joint Stock Corporation.
Growing time: in the North of Viet Nam: in Spring crop from 120 - 130 days, in Summer crop from 100 days to 105 days; in South Central and Central Highlands: in Winter-Spring crop from 100 days to 105 days, in Summer-Autumn crop from 90 days to 95 days.
Height: from 110 cm to 115 cm, good tillering, beautiful phenotype, vertical leaves; long and slim seeds, brown husk; 1000 seeds's net weight is about 24 grams to 25 grams.
Slightly infected by rice blast bacteria, moderately infected by brown spot disease and leaf blight bacteria.
Average yield reaches from 50 quintals to 60 quintals/ha, can reach 65 quintals to 70 quintals/ha with good intensive farming conditions.
Amylose content reaches 16.5%, good rice's quality, pure rice grains, cooked rice is soft, aromatic.