环洞庭湖双季稻区玉米品种比较试验

摘要

In order to screen the new hybrid maize varieties suitable for planting after natural disasters in Hunan double rice field, 25 new varieties of hybrid corn with large planting area or newly released varieties in recent years were used as test material.The high yield, adaptability, growth period and stress resistance of new varieties were used to analyze by the partition compares method designing.The results indicated that the average yield of the tested varieties amounted to 7.25 t/hm2.Thirteen varieties had an increase of more than 10%over check variety (Lin’ao 1).The varieties with high yield , good comprehensive characters were Keyu 2、Dong 315、Xiangkangyu 2、Sanbei 2、Xiangkangyu 2、Keyu6、Luoyu 1 and Fengyu8, which enter into the next year's corn varieties screening test for screening appropriate post -disaster remedy maize varieties.%为筛选出能应对湖南双季稻区突发性农业气象灾害、适宜灾后补救的玉米新品种，以湖南省近年种植面积较大或新审定的25个杂交玉米新品种为试验材料，采用间比法分析各品种的丰产性、适应性、生育期和抗逆性。结果表明，参试品种的平均产量为7.25 t/hm2，产量超过对照（临奥1号）10％以上的品种有13个，其中，科玉2号、东315、湘康玉2号、三北2号、湘康玉1号、科玉6号、洛玉1号、丰玉8号等8个品种，产量高，品质好，综合性状优良，可进入下一年的灾后补救玉米品种筛选试验。