论文部分内容阅读
以长农44谷子新品种2012年参加所内品比和历年参加国家中晚熟组区域试验及生产试验结果为基础,采用方差分析、多重比较法、分级比较法等方法,分析抗除草剂谷子新品种长农44的产量潜力、抗倒性、耐旱性、抗病性,为大面积示范推广提供理论依据.长农44参加2013～2014年国家中晚熟组区试,两年平均产量为5 167.5 kg/hm2,平均比对照长农35增产7.51％,变异系数为25.56％.2014年该品种参加生产试验,平均产量为6 282 kg/hm2,平均比统一对照长农35增产10.34％.抗倒性为2级,耐旱性为2级,谷锈病、谷瘟病、纹枯病均为3级,黑穗病、线虫病未发生,红叶病发病率为5％,白发病发病率为0.8％.长农44是综合性状优良、抗倒耐旱、抗逆性强、丰产稳产、品质优良的抗除草剂谷子新品种.应用实践增产效果明显,适宜在无霜期150 d以上的西北黄土高原地区春播旱地种植.“,”To provide a theoretical basis for large area demonstration and promotion, yield potential, lodging resis tance, drought tolerance and stress resistance of “Changnong 44”, a new herbicide resistant foxtail millet variety, were analyzed by means of variance analysis, multiple comparisons and grade comparison on the basis of results of comparison test of varieties within institute and the regional trial and production test of the national mid-late maturing group of foxtail millet in 2012. The average yield of “Changnong 44” was 5 167. 5 kg/ha, with an average increase of 7. 51％ and a coefficient of variation of 25. 56％ compared with the control of “Changnong 35” in the national mid-late maturing trial in the year of 2013 and 2014. In the production test in 2014, its average yield was 6 282 kg/ha, with an average increase of 10. 34％ higher than that of the control. Lodging resistance was 2, drought tolerance was 2, valley rust, valley blast and sheath blight were 3 grade, smut and nematode disease did not occur, and the incidence of red leaf and white hair disease was 5％ and 0. 8％, respectively. In brief, “Changnong 44” is a new herbicide resistant foxtail millet variety with excellent comprehensive characters, lodging and drought tolerance, strong resistance, high and stable yield and good quality. The application practice showed obvious effects of yield increase. And it is suitable to be planted in the spring in the Northwest Loess Plateau with a frost-free period of more than 150 days.