饲用甜高粱在广西的引种试验初报

The Introduction Experiment for Feed Sugar Broom Corn Grass in Guangxi

[目的]分析优质饲用甜高粱引入广西种植的可行性。[方法]通过对M81-E、原甜1号、品甜3号、XGC-4、BJK236的引种试验,对各品种的物候期、综合农艺性状、鲜草产量、营养成分进行比较分析,进一步对各品种的适应性、品种特性、再生能力及产草能力进行分析。[结果]5个饲用甜高粱品种均可适应广西的气候环境,单造鲜草产量可达75 000 kg/hm2左右,与当地主栽的玉米品种差异达极显著水平。M81-E综合农艺性状优良,丰产性好,再生能力强,第1造产量81 705 kg/hm2,第2造产量74 250 kg/hm2,均显著高于对照玉米品种大丰2号,可在广西及南方地区推广种植。[结论]供试品种可以引入广西种植。

The plant experimentally were conducted by using introduced M81-E,Yuantian Ⅰ,Pingtian Ⅲ,XGC-4、BJK236 5 breeds Feed sugar Broom corn grass.And the results showed that the above breeds could adapt to the climate in Guangxi province.The fresh grass yield for one harvest time can reach about 5 ton,which significantly higher than the local maize.And the highest yield was M81-E,and its yield for first harvest time was 5 447 kg,for second harvest time was 4950kg,which significantly higher than the control group of Dafeng Ⅱmaize（3 683 kg）.Therefore,the introduced M81-E,Yuantian Ⅰ,Pingtian Ⅲ,XGC-4、BJK236 5 breeds Feed sugar Broom corn grass could be planted in Guangxi areas.