甘蓝型黄子白花油菜恢复系RW16的选育与应用

Breeding and Application of Rapeseed(Brassica napus L.) Restorer RW16 with Yellow Seed and White Petal

以显性白花油菜W62为母本与显性黄子油菜H440杂交、回交,经多代连续定向选择育成了甘蓝型油菜(Brassica napus L.)双低恢复系RW16,具有黄子和白花的特性。该恢复系具有较好的抗性和良好的品质性状,其芥酸含量平均为0.84%,硫甙含量平均为26.71μmol/g,含油量平均为46.78%,符合国家优质标准,属于高含油量油菜品种。该恢复系产量一般配合力良好,配制的杂种F1代子粒暗黄色,植株花色乳白,含油量和产油量杂种优势明显,普遍高于对照秦优7号。

RW16,a restorer of rapeseed （Brassica napus L.） with yellow-seed, white-petal and double-low quality （low eru- cic acid and low glucosinolate） was successfully developed by the successive and directional selections of multi-generations from a hybridization between Fl（W62/H440） as female and H440 with yellow seed as male. RW16 had good cold-resistance, disease-resistance and quality characters. The average erucic acid content in oil, glucosinolate content in meal and oil content was 0.84%, 26.71μmol/g and 46.78%, respectively. Based on the national standard, it belonged to a double-low restorer with high oil content. It also had better general combining ability in yield, the Fi hybrids from combinations of RW16 with other varieties showed better heterosis in oil yields per unit area and oil content, black-yellow seed coat and milky white petal, while the oil content of them was remarkably higher than that of Qinyou 7.