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报道了3个美国甜糯玉米(ZeamaysL.)品种在广州种植的性状表现情况,对其生长发育规律和适应性进行了调查,并就它们的进一步选育和利用作出了评价和分析。结果表明所引进的3个甜糯玉米品种能较好地适应广州地区高温高湿的气候条件,无检疫性病虫害,抗倒性能强,品质优良。品种EarlySunglow生育期短,较对照种超甜9501提前18d收获鲜穗,但产量比对照低21.2%;KandyCorn与Peaches&Cream从播种至收获鲜苞所需时间比超甜9501早14d,但鲜穗产量分别比对照低15.9%和17.9%。我们认为所引进的3个甜糯玉米品种是值得进一步选育利用的优异种质资源,可作育种的基础材料或进行遗传改良,可望选育出适合广东省及华南地区种植的优良甜糯玉米新品种。
The performance of three American sweet waxy corn (Zeamays L.) cultivars planted in Guangzhou was reported. The growth and development rules and adaptability of the three cultivars were surveyed and evaluated and analyzed for their further breeding and utilization. The results showed that the three varieties of sweet waxy maize introduced could well adapt to the climatic conditions of high temperature and humidity in Guangzhou, no quarantine pests and diseases, strong lodging resistance and good quality. EarlySunglow had shorter growth period and harvested early 18d than the control, but its yield was 21.2% lower than that of the control. KandyCorn and Peaches & Cream took sowing time 14 days earlier than super-sweet 9501, 15.9% and 17.9% lower than the control. We believe that the three sweet waxy maize varieties introduced are excellent germplasm resources worthy of further breeding and utilization. They can be used as breeding materials or genetic improvement, and are expected to breed fine sweet waxy varieties suitable for planting in Guangdong and southern China New varieties of corn.