强抗寒性白菜型冬油菜品种‘陇油9号’的选育  

Breeding of An Elite Cold-tolerance Brassica rapa Cultivar Longyou No.9

作　　者：孙万仓[1] 武军艳[1] 方彦[1] 刘自刚[1] 曾秀存[1] 李学才[1] 史鹏辉[1] 何丽[1] 赵彩霞[1] 

机构地区：[1]甘肃农业大学农学院甘肃兰州730070

出　　处：《甘肃农业大学学报》2013年第6期52-58,共7页Journal of Gansu Agricultural University

基　　金：国家科技部农业科技成果转化资金项目“甘肃中北部及河西走廊超强抗寒冬油菜陇油6号中试与示范”(2008GB2G100322);国家现代农业产业技术体系“北方寒旱区冬油菜育种岗位科学家”(CARS-13);国家行业科技项目“北方旱寒区冬油菜北移集成技术研究与示范”(200903002-4);国家自然基金“芸芥自交亲和基因的克隆及功能分析”(3ZS061-A25-076);国家863计划专项“强优势油菜杂交种的创制与应用”(2011AA10A104)

摘　　要：试验以强抗寒性品种‘延油2号’为母本,丰产性品种‘天油2号’为父本进行杂交,后代群体置于-28℃^-25℃大田条件下自然越冬选择,育成了高产、抗寒、早熟的强抗寒性白菜型冬油菜品种‘陇油9号’.该品种平均株高111.7cm,有效分枝数为10.0个,主花序长度42.3cm,主花序结角数43.0个,全株结角数112.7个,角粒数21.2粒,角果长度6.0cm,千粒质量3.3g,单株产量11.3g,生育期286d,含油率43.37%,产量143.21kg/667m2,较对照‘天油2号’增产2.47%~13.56%.‘陇油9号’可抗-27.0℃极端低温,在新疆乌鲁木齐、北京、青海和甘肃兰州以北及河西走廊的张掖、武威能够安全越冬,越冬率80%~90%;熟期早,在北方地区常年于5月底至6月初成熟,适宜作马铃薯、油葵、大豆、蔬菜等作物的前茬.该品种的推广将有效解决我国北方旱寒区冬油菜越冬问题及早熟性与抗寒性的矛盾.‘Longyou No.9 ’was developed from the cross with female ‘Yanyou No.2 ’and male‘Tianyou No.2’.‘Yanyou No.2’was an elite cold-tolerant cultivar and ‘Tianyou No.2’was a high yield cultivar.The high-yielding,excellent cold-resistant and early-maturing winter type Brassica rapa variety-‘Longyou No.9’was derived from natural selections among progeny generations under field conditions （-25--28 ℃）.The cultivar has a life cycle of 286 days.The plant is 111.7 cm high,with 10 effective bran-ches and 43.2 cm long main inflorescence with 43 pods （siliques）on each main inflorescence.Single plant has 112.7 pods,each pod is 6.0 cm long with 21.2 seeds.Thousand seed weight is 3.3 g and the seed oil content is 43.37%.Yield was 11.3 g/plant and 143.21 kg/667m2 ,with 2.47%-13.56% of higher com-pared with the control line ‘Tianyou No.2’.The plant is resistant to extreme low temperature （-27 ℃） and can successfully survive the winter in Urumchi of Xinj iang,Beij ing,Qinghai,north of Lanzhou,and Zhangye and Wuwei of Hexi Corridor,and the winter survival ratio reached 80%-90%.The cultivar rea-ches maturity as early as the end of May to early June in northern China.It can be used as a fore-rotating crop for potato,sunflower,soybean,vegetables or other crops.Extension of this variety will efficiently solve the problem of winter survival and contradiction of early-maturity and cold resistance for winter type rapeseed in dry and cold regions of northern China.

关 键 词：白菜型油菜 强抗寒性 '陇油9号’ 选育 

分 类 号：S603[农业科学—园艺学]