摘要
为筛选适宜农牧交错带地区种植的高粱品种,在宁夏盐池县四墩子开展不同品种饲用高粱种植试验.试验采用随机区组设计,以8个供试高粱品种的株高、茎直径、叶绿素SPAD值、干鲜比、叶茎比、干草产量、粗蛋白(CP)、粗灰分(Ash)、酸性洗涤纤维(ADF)、中性洗涤纤维(NDF)和相对饲用价值(RFV)为指标,进行综合评价.结果表明:各品种的株高、茎直径、叶绿素、干鲜比、叶茎比、干草产量、w(CP)、w(Ash)、w(NDF)、w(ADF)均差异显著(P<0.05),其中高丹草多维、海牛的干草产量较高,达26 106.66、21 893.33 kg/hm2;中科甜438、高粱大奖1230的株高较高,分别为274.13、232.86 cm,其茎秆也较粗,分别为12.52、13.12 mm,w(CP)分别为7.51、6.45,品质较好.通过主成分分析和隶属函数分析对各品种的农艺性状和营养品质进行综合评价,中科甜438和高粱大奖1230的表现较好,适宜在农牧交错带地区推广种植.
Abstract
The aim of this study was to identify sorghum varieties suitable for cultivation in the agro-pastoral ecotone of Ningxia,specifically in Yanchi County.A randomized block design was employed for the experiment.Key indicators for the comprehensive evaluation included plant height,stem diameter,chlorophyll content,dry-to-fresh weight ratio,leaf-to-stem ratio,hay yield,crude protein(CP),acid detergent fiber(ADF),neutral detergent fiber(NDF),and relative feed value(RFV)of eight different sorghum cultivars.The results demonstrated significant differences(P<0.05)among varieties in terms of plant height,stem diameter,chlorophyll content,dry-to-fresh weight ratio,leaf-to-stem ratio,hay yield,crude protein,ash content,NDF,and ADF.Specifically,the hay yields of Gaodancaoduowei and Hainiu were 26 106.66 kg/hm2 and 21 893.33 kg/hm2,respectively.Zhongke Tian438 and Sorghum Grand Prize1230 exhibited greater plant heights(274.13 cm and 232.86 cm,respectively)and thicker stems(12.52 mm and 13.12 mm,respectively),with CP values of 7.51%and 6.45%,respectively,indicating superior quality.Agronomic traits and nutritional quality were evaluated using principal component analysis and membership function analysis.Zhongke Tian 438 and Sorghum Grand Prize 1230 were identified as the best cultivars for local cultivation.
基金项目
宁夏回族自治区农业科技自主创新资金农业高质量发展和生态保护科技创新示范课题(NGSB-2021-14-06)
宁夏回族自治区农业高质量发展和生态保护科技创新示范项目(NGSB-2021-15)
国家科技期刊平台
NSTL
万方数据