6个饲草谷子品种(系)在内蒙古农牧交错区麦后复种的产量和营养品质分析

Yield and nutritional quality analysis of 6 forage millet varieties (lines) after the wheat cropping in Agro-pastoral ecotone of Inner Mongolia

摘要:

为了扩大饲草种植面积,解决农牧交错区日益增长的饲草需求问题。通过对6个麦后复种饲草谷子品种(系)的株高、鲜草产量、干草产量、干鲜比等4个生产性能指标和粗蛋白、酸性洗涤纤维、中性洗涤纤维、粗灰分、粗脂肪等5个营养品质相关指标进行方差分析和灰色关联度分析,以筛选出适合在内蒙古农牧交错区复种的种质。结果表明:9个测定指标中鲜草产量、粗蛋白、粗脂肪和粗灰分等指标变异系数较大,具有较大的改良潜力;6个麦后复种饲草谷子品种(系)中红钙谷综合评价表现最好,因此,可以将红钙谷作为麦后复种优质饲草谷子专用品种的候选材料。

Abstract:

In order to expand the forage planting area and solve the growing forage demand in the farming-pastoral interlacing area and screen germplasm suitable for multiple cropping,in this study,variance analysis and grey correlation analysis were conducted on four production performance indexes of plant height,fresh grass yield,dry grass yield,dry-fresh ratio and other and five nutritional quality related indexes of crude protein,acid detergent fiber,neutral detergent fiber,crude ash and crude fat for six multi-cropping forage millet varieties (lines) after wheat cropping.The results showed that among the 9 indexes,the variation coefficient of fresh grass yield,crude protein,crude fat and ash content was large,which had great potential for improvement.Among the 6 forage millet varieties (lines) replanted after wheat,Red Calcium Valley had the best comprehensive evaluation performance.Therefore,Red Calcium Valley could be used as a candidate material for special varieties of high-quality forage millet replanted after wheat cropping.