(1Sorghum Research Institute,Shanxi Academy of Agricultural Sciences,Jinzhong 030600,Shanxi,China;2Maize
Research Institute,Shanxi Academy of Agricultural Sciences,Xinzhou 034000,Shanxi,China)
Heitiannuo 631’ is a new black sweet and waxy corn variety of fruit-vegetable type bred by
crossing‘ HNF’ as female parent and‘k01-2’as male parent.It is of semi-compact plant type,263 cm in
plant height,and 155 cm in ear position height.It has strong growth vigor.Its ear is cylindrical,and 19.6 cm in
length.There are 18 rows in each ear and 40 grains in one line.The spike-stalk is black in color.The grain is
black purple in color.The proportion of sweet and waxy grain is 1︰3.Its fresh ear yield is 13.5-16.5 t·hm-2.
It takes about 96 days as growing period.It tastes sweet and sticky after cooking,and contains rich anthocyanin.
It is suitable to be planted in the main producing area of waxy corn in Shanxi Province.