湖北农业科学 ›› 2020, Vol. 59 ›› Issue (20): 134-137.doi: 10.14088/j.cnki.issn0439-8114.2020.20.030

• 畜牧兽医 • 上一篇    下一篇

西南地区20个青贮玉米品种(系)比较试验

焦金龙, 张艳茹, 王伟, 赵丽, 吴元奇   

  1. 四川农业大学玉米研究所,四川 温江 611130
  • 收稿日期:2020-01-08 出版日期:2020-10-25 发布日期:2020-12-04
  • 通讯作者: 吴元奇,副教授,博士,主要从事作物遗传育种研究,(电子信箱)yqwu@163.com。
  • 作者简介:焦金龙(1994-),男,甘肃渭源人,在读硕士研究生,研究方向为作物遗传,(电话)19981456179(电子信箱)1549414746@qq.com。
  • 基金资助:
    国家重点研发计划项目(2016YFD0300309);四川省教育厅项目(17EA0317)

Comparison of silage yield and quality among twenty maize varieties(lines) in southwest China

JIAO Jin-long, ZHANG Yan-ru, WANG Wei, ZHAO Li, WU Yuan-qi   

  1. Maize Research Institute,Sichuan Agricultural University,Wenjiang 611130,Sichuan,China
  • Received:2020-01-08 Online:2020-10-25 Published:2020-12-04

摘要: 比较20个青贮玉米品种(系)的农艺性状和产能,以期筛选出适合西南地区推广种植的优良青贮品种。在4 266株/667 m2种植密度下,采取随机区组设计,比较不同青贮玉米的农艺性状、青贮产量及品质等性状。结果表明,不同品种(系)之间的农艺性状和产量性状之间存在差异,青贮产量最高可达 5 463.66 kg/667 m2,最低产量为3 680.83 kg/667 m2。对6个青贮产量较高的品种(云南地方种/太平洋98、川青8号、76/77、1123A/四不象-7、H1619052/太平洋98、9yco33/云南地方种)进行营养品质分析发现,除体外干物质消化率外,粗蛋白质、中性洗涤纤维、酸性洗涤纤维和可溶性糖含量均存在显著性差异(P<0.05)。云南地方种/太平洋98和川青8号青贮产量高、品质优,综合性状表现优良,适宜在西南地区推广种植。

关键词: 青贮玉米, 品种, 品系, 筛选试验

Abstract: To compare the agronomic traits and productivity of twenty silage maize varieties(lines),so as to screen out the best silage varieties suitable for spreading cultivation in southwest China.The characteristics,silage yield and quality of different cultivars were analyzed under planting density of 4 266plants/667m2.The results showed that there was a difference between the agronomic traits and the yield traits among different varieties.The highest yield of silage was 5 463.66kg/667m2,and the lowest yield was 3680.83kg/667m2.Nutritional quality analysis of the six highest silage varieties(lines) (Yunnan Local Species/Pacific 98,chuanqing 8,76/77,1123A/different-7,H1619052/Pacific 98,9yco33/Yunnan Local Species) found,except for In Vitro Dry Matter Digestibility,the contents of crude protein,neutral detergent fiber,acid detergent fiber and soluble sugar were significantly different.Yunnan local species/Pacific 98 and Chuanqing 8 silage have high yield,good quality and excellent comprehensive traits,so they were suitable for popularization and planting in southwest China.

Key words: silage corn, variely, line, selecting experiment

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