冬油2号是以郑杂1号为母本，宁油1号为父本通过杂交选育而成的白菜型油菜品种。在2010-2012年的甘肃省油菜品种区域试验，2 a平均折合产量2 349.45 kg/hm2，比对照品种天油4号增产2.56%；2011-2012年度参加生产试验，平均折合产量2 882.55 kg/hm2，比对照品种天油4号增产8.49%。该品种株高114.9 cm，单株有效角果数179.9个，角粒数22.9粒，千粒重3.2 g。芥酸含量187 g/kg，硫苷73.41 μmoL/g，含油量417.2 g/kg。适宜在甘肃省中东部天水、平凉、陇西、宁县等地种植。

Dongyou 2 is a Brassica campestris cultivar， bred by parental combination of Zhengza 1 with Ningyou 1. In 2010-2012， the average yield of Dongyou 2 in 2 a was 2 349.45 kg/hm2 and 2.56% higher than that of the check Tianyou 4 in Rape Regional Test in Gansu Province. In 2011-2012， the average yield of Dongyou 2 was 2 882.55 kg/hm2 and 8.49% higher than that of the check Tianyou 4 in Rape production Test. The plant height is 114.9 cm， the number of effective pod per plant is 179.9， angle grain number is 22.9， thousand-seed weight is 3.2 g. The erucic acid content is 18.7%， glucosinolates is 73.41 umoL/g， oil content is 41.72%. It is suitable for growing in east-central Gansu Province Tianshui， Pingliang， Longxi， Ningxian and other places.

S565.4