论文部分内容阅读
用吉单27、先玉335和郑单958等3个品种作对照,对从美国引进的5个玉米新品种进行品比试验。结果表明,所有参试品种的产量均高于对照吉单27,除Y1301差异不显著之外,其余达到显著水平或极显著水平。尽管所有品种的熟期均比先玉335和郑单958早,但是,除Y1301之外,其余4个品种的产量均高于对照先玉335和郑单958,差异未达显著水平。试验证明引进品种具有较好的丰产性,直接引入品种是可行的,但需进一步做多年多点鉴定。
Using the three varieties of Ji’dan 27, Xiangyu 335 and Zhengdan 958 for comparison, the five new maize varieties introduced from the United States were tested for the ratio. The results showed that the yield of all tested varieties was higher than that of the control Jidan 27, except that the difference of Y1301 was not significant, the other reached the significant level or extremely significant level. Although the maturity dates of all cultivars were earlier than that of Xiangyu 335 and Zhengdan 958, the yield of the remaining four cultivars except Y1301 was higher than that of Xianxu 335 and Zhengdan 958. The difference was not significant. The test proves that the introduced varieties have good high yield. It is feasible to directly introduce the varieties, but it needs further multi-year identification.