摘要
在成都平原地区,以5个多花黑麦草(Lolium multiflorum)品种与5个饲用燕麦(Avena sativa)品种作为参试品种,对其产草量、叶茎比、生长速度与粗蛋白、中性洗涤纤维、酸性洗涤纤维的含量进行测定分析,并利用DTOPSIS法和灰色关联度法进行综合评价。结果显示:品种间总体生长速度差异较小,"阿坝"燕麦与"科瑞登"多花黑麦草的生长速度最高,达到0.70 cm·d^-1;叶茎比方面,多花黑麦草显著大于饲用燕麦(P <0.05);鲜、干草产量都以"小马"燕麦最高,达到76 989和23 766 kg·hm^-2;多花黑麦草的粗蛋白含量略高于饲用燕麦,中性洗涤纤维、酸性洗涤纤维含量显著低于饲用燕麦(P <0.05)。综合评价表明,多花黑麦草品种排名整体高于饲用燕麦品种,"科瑞登"与"邦德"多花黑麦草排名最靠前,"小马"燕麦次之,这3个品种适合在成都平原推广种植。
In the Chengdu Plain,five Italian ryegrass(Lolium multiflorum)and five forage oat(Avena sativa)varieties were comprehensively assessed using the DTOPSIS and grey correlation methods,based on seven agronomic traits,including biomass yield,leaf-stem ratio,growth rate,crude protein contents,neutral detergent fiber(NDF),and acid detergent fiber(ADF).The results indicated that there were no significant differences regarding the growth rate of all tested varieties,and the highest value was 0.70 cm·d^-1 for oat‘Aba’and Italian ryegrass‘Corden’.The leaf-stem ratio of Italian ryegrass was significantly higher than that of oat(P<0.05).The fresh and hay yields of oat‘Cayuse’were the highest,achieving 76989 and 23766 kg·ha^-1,respectively.The crude protein content of Italian ryegrass was slightly higher than that of oat,but the NDF and ADF contents were significantly(P<0.05)lower.According to the results of two comprehensive evaluation methods,Italian ryegrass ranked higher than oat.Italian ryegrass‘Corden’and‘Abundant’ranked the highest,followed by oat‘Cayuse’.Thus,all three of these varieties are suitable for cultivation in the Chengdu Plain.
作者
杨建
雷雄
陈煜坤
刘伟
董志晓
熊毅
熊艳丽
马啸
YANG Jian;LEI Xiong;CHEN Yukun;LIU Wei;DONG Zhixiao;XIONG Yi;XIONG Yanli;MA Xiao(College of Animal Science,Sichuan Agricultural University,Chengdu 611130,Sichuan,China)
出处
《草业科学》
CAS
CSCD
2020年第6期1124-1132,共9页
Pratacultural Science
基金
四川省科技厅饲草育种攻关(2016NZ0098G11)
四川省肉牛产业体系创新团队(2017CXTD02G7)
四川省科技支撑计划(2015SZ0200)。
关键词
生产性能
营养价值
灰色关联度法
DTOPSIS法
综合评价
production performance
nutritional value
grey correlation method
DTOPSIS method
comprehensive evaluation
