姚 蘭,李德明,羅 磊,王 娟,姚彥紅,張小靜,馬 瑞,李亞杰
(定西市農業(yè)科學研究院,甘肅 定西 743000)
西北旱區(qū)馬鈴薯新品種引進及篩選試驗
姚 蘭,李德明,羅 磊,王 娟,姚彥紅,張小靜,馬 瑞,李亞杰*
(定西市農業(yè)科學研究院,甘肅 定西 743000)
馬鈴薯優(yōu)良品種缺乏是制約西北馬鈴薯產業(yè)發(fā)展的主要因素,為篩選出適宜西北干旱半干旱區(qū)氣候特點的高產、優(yōu)質馬鈴薯新品種,2015年定西市農業(yè)科學研究院從全國馬鈴薯科研院所引進6個新品種,以‘青薯9號’為對照(CK),進行田間比較試驗。結果表明,‘中薯20號’表現(xiàn)出較高的適應性和高產性,產量達到2 633 kg/667m2,較對照增產11.95%,商品薯率高,在定西市可作為潛在主推品種。
馬鈴薯;新品種;引進;篩選
Abstrraacctt::The shortage of adapted potato varieties is a main factor restricting potato industry development in northwest China.In order to select potato varieties which have the suitable characteristics of high yield and superior quality in arid and semi-arid regions,six potato varieties were introduced by Dingxi Academy of Agricultural Sciences from the academy of agricultural sciences nationwide in 2015.The experiment results indicated that the introduced new variety'Zhongshu 20'showed higher adaptability and higher yield,reaching 2 633 kg/667m2,increased by 11.95%compared with'Qingshu 9'(CK).It also had higher marketable tuber percentage.Therefore,it is recommended that'Zhongshu 20'could be extended as a main potential variety in Dingxi City.
Key Worrddss::potato;new variety;introduction;screening
新品種引進是馬鈴薯育種中的一項重要工作。由于定西市當?shù)伛R鈴薯生產品種匱乏、單一,且退化現(xiàn)象嚴重不能滿足市場需求,所以育種工作者應積極開展馬鈴薯新品種引進工作,以適應農戶及市場的需求[1-5]。目前全市主推的為中晚熟類型,主要有隴薯系列、‘莊薯3號’、‘青薯9號’、‘新大坪’等幾個品種,‘新大坪’產量低,‘隴薯3號’多空心且不易貯藏,適應市場多元化發(fā)展需求的品種比較缺乏,真正能高產、穩(wěn)產、抗病的后續(xù)品種不足,制約著馬鈴薯產業(yè)升級。因此,馬鈴薯新品種的引進、篩選和推廣成為當前迫切亟待解決的問題。
定西市農業(yè)科學研究院依托馬鈴薯產業(yè)技術體系平臺,加強新品種引育力度,從全國各地引進新品種,在定西地區(qū)進行抗旱、高……