陇中干旱半干旱区小黑麦新品系适应性评价OA
Adaptability Evaluation of New Triticale Lines in the Arid and Semi-arid Area of Central Gansu
探析陇中干旱半干旱地区饲草型小黑麦(×Triticosecale Wittmack)的适应性,为该地区大面积示范推广提供技术支持.对5个高代小黑麦新品系20182、20185、201811、201812、201823的生育期、产量和营养品质进行了比较及灰色关联度分析.结果表明,5个小黑麦新品系在陇中干旱半干旱区均可安全越冬并正常完成生育期,全生育期285～288 d.参试品系的鲜草产量为48.93～61.40 t/hm2、干草产量为16.90～22.07 t/hm2,其中新品系201812鲜草产量和干草产量均位居参试品系第1位.各品系籽粒含粗蛋白(CP)94.6～115.2 g/kg、粗脂肪(EE)20.7～30.7 g/kg、粗纤维(CF)299.3～380.0 g/kg、酸性洗涤纤维(ADF)382.0～480.0 g/kg、中性洗涤纤维(NDF)530.0～673.0 g/kg,其中新品系201812的粗蛋白含量最高、粗脂肪含量(26.6 g/kg)较高,酸性洗涤纤维含量(442.0 g/kg)较低、粗纤维和中性洗涤纤维含量均最低,相对其他参试品系饲草品质表现最好.采用灰色关联度分析法对鲜草产量、干草产量、营养指标、相对饲喂价值综合分析认为,小黑麦新品系201812综合表现最好,适宜在陇中干旱半干旱地区种植推广.
This study aimed to investigate the adaptability of forage triticale(×Triticosecale Wittmack)in the arid and semi-ar-id area of central Gansu,and to provide technical support for its large-scale demonstration and promotion in this region.The growth period,yield,and nutritional quality of 5 new triticale lines,namely 20182,20185,201811,201812,and 201823,were compared and analyzed using grey relational grade analysis.Results showed that all 5 new triticale lines could safely overwinter and complete their growth period normally in the arid and semi-arid area of central Gansu,with growth periods ranging from 285 to 288 d.The fresh for-age yield of the tested lines ranged from 48.93 to 61.40 t/ha,and the hay yield ranged from 16.90 to 22.07 t/ha.Among them,the new line 201812 ranked first among all tested lines in both fresh forage yield and hay yield.The grain crude protein(CP),ether extract(EE),crude fiber(CF),acid detergent fiber(ADF),and neutral detergent fiber(NDF)contents of the tested lines were 94.6 to 115.2 g/kg,20.7 to 30.7 g/kg,299.3 to 380.0 g/kg,382.0 to 480.0 g/kg,and 530.0 to 673.0 g/kg,respectively.Among them,the new line 201812 had the highest crude protein content,a relatively high ether extract content of 26.6 g/kg,a relatively low acid detergent fiber content of 442.0 g/kg,and the lowest crude fiber and neutral detergent fiber contents,indicating the best forage quality compared with the other tested lines.Based on a comprehensive analysis of fresh forage yield,hay yield,nutritional indicators,and relative feeding value using grey relational grade analysis,the new triticale line 201812 showed the best overall performance and is suitable for plant-ing and promotion in the arid and semi-arid area of central Gansu.
周丽娜;侯云鹏;权小兵;王会蓉;齐静潇;张健
定西市农业科学研究院,甘肃 定西 743000定西市农业科学研究院,甘肃 定西 743000定西市农业科学研究院,甘肃 定西 743000定西市农业科学研究院,甘肃 定西 743000定西市农业科学研究院,甘肃 定西 743000定西市农业科学研究院,甘肃 定西 743000
农业科技
小黑麦新品系生育期草产量营养品质
TriticaleNew lineGrowth periodForage yieldNutritional quality
《寒旱农业科学》 2026 (6)
520-525,6
甘肃省科技计划项目乡村振兴专项(24CXNJ001)定西市科技计划项目重点技术攻关专项(DX2024AZ06、DX2024AZ09).
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