不同甜高粱和青贮玉米品种生产性能及饲用品质评价分析  

Evaluation and analysis of production performance andfeed quality of different sweet sorghum and silage corn varieties

作　　者：何增国[1,2] 唐峻岭 杨珍 赵军 张德 HE Zengguo;TANG Junling;YANG Zhen;ZHAO Jun;ZHANG De(Agricultural Technology Promotion Center of Gulang County,Wuwei,Gansu Province 733100,China;Agricultural Science Research Institute of Wuwei City,Wuwei,Gansu Province 733000,China)

机构地区：[1]古浪县农业技术推广中心,甘肃武威733100 [2]武威市农业科学研究院,甘肃武威733000

出　　处：《中国饲料》2024年第17期136-142,共7页China Feed

基　　金：甘肃省科技重大专项甜高粱种植关键技术研究与产业化示范项目(1407FKDH001);武威市科技计划高产优质抗旱粒用高粱新品种引进选育项目(WW2101061)。

摘　　要：为筛选甘肃河西地区种植的优良饲料作物和饲料品种,本试验选用4个甜高粱品种和4个玉米品种,测定生物学特性、生物产量、农艺性状、营养成分等,评价分析其生产性能和饲用价值。结果表明:甜高粱中干草产量科甜9号产量最高,为38243.42 kg/hm2,极显著高于其他甜高粱品种;青贮玉米武科青贮101干草产量最高,为32266.21 kg/hm2,与桑草青贮1号干草产量差异不显著,极显著高于其他2个甜高粱品种。参试的8个饲草除甜高粱大力士外,其他饲草相对饲用价值(RFV)都大于100,表明参试品种除甜高粱大力士外其他参试品种饲用质量均较高。甜高粱RFV值最高的2个品种是吉甜2号和辽甜7号,分别为146.67和138.58,极显著高于大力士,显著高于科甜9号。青贮玉米吉祥1号RFV值最高,为180.53,其次为武科青贮101,为156.13。甜高粱吉甜2号相对饲用质量(RFQ)值最高,为170.09,其次为辽甜7号,为164.15。青贮玉米武科青贮101的RFQ值最高,为186.66,但与吉祥1号差异不显著,与其他2个青贮玉米品种差异极显著。将参试品种运用隶属函数进行综合评价发现,青贮玉米排序高于甜高粱,排序最高的2个品种为武科青贮101和吉祥1号,结合产量表现,甘肃河西地区最适宜推广的品种为武科青贮101。This study aimed to screen excellent feed crops and feed varieties planted in the Hexi region of Gansu Province.Selected 4 sweet sorghum varieties and 4 corn varieties respectively,measured biological characteristics,biological yield,agronomic traits,nutritional composition,etc.,evaluate and analyze production performance and feeding value.The results showed that in sweet sorghum,the hay yield of Ketian 9 was the highest,at 38243.42 kg/hm2,which was significantly higher than other sweet sorghum varieties;The highest hay yield of silage maize Wuke silage 101 was 32266.21 kg/hm2,which was not significantly different from the hay yield of Mulberry Grass silage 1 and was significantly higher than the other two sweet sorghum varieties.According to the grading standards for coarse feed by Zhang Jiyi and others,the RFV values of all 8 tested forage plants,except for sweet sorghum Hercules,were greater than 100,indicating that all tested varieties,except for sweet sorghum Hercules,had higher feed quality.The two varieties with the highest RFV value of sweet sorghum are Jitian 2 and Liaotian 7,with values of 146.67 and 138.58,respectively,which were significantly higher than Hercules and significantly higher than Ketian 9.The RFV value of silage maize Jixiang 1 was the highest at 180.53,followed by Wuke silage 101 at 156.13.Sweet sorghum Jitian 2 had the highest RFQ value at 170.09,followed by Liaotian 7 at 164.15.The RFQ value of silage corn Wuke silage 101 was the highest,at 186.66,but there was no significant difference compared to Jixiang 1,and there was a very significant difference compared to the other two silage corn varieties.The tested varieties were comprehensively evaluated using a membership function.The ranking of silage corn was higher than that of sweet sorghum,and the two highest ranked varieties were Wuke silage 101 and Jixiang 1.Based on yield performance,the most suitable variety for promotion in the Hexi region of Gansu was Wuke silage 101.

关 键 词：甜高粱 青贮玉米 生产性能 饲用品质 

分 类 号：S816.5[农业科学—饲料科学]