牡丹江农科所从1977～1988年经过10年育成水稻新品种牡丹江19号(石狩×岩锦),1989年经省品审会审定推广。牡丹江19生育期135～137天,活动积温2569～2734℃,苗色绿,分蘗性强,分蘗率在433.3%,有效穗率96.4%,株形直立,分蘖后生长快,株形披散,株高90～94厘米,穗长16.9～18.2厘米,主穗粒数85粒,千粒重26～27克。 Mudanjiang Agricultural Institute from 1977 to 1988 after 10 years into a new rice variety Mudanjiang No. 19 (Ishiguro × Rock Kam), in 1989 by the provincial product Council examined and approved. The Mudanjiang 19 had a growth period of 135-137 days with an active accumulated temperature of 2569-2770 ℃. The seedling green and tillering were strong. The tillering rate was 433.3% and the effective panicle rate was 96.4%. The plant shape was upright, Height 90 ~ 94 cm, spike length 16.9 ~ 18.2 cm, the main grain number 85 grains, grain weight 26 ~ 27 grams.