刺槐无性系叶片营养价值变异分析  

Variation in leaf nutrition of Robinia pseudoacacia clones

作　　者：张国君[1,2] 袁存权[1] 汪洋[2] 李云[1] 徐兆翮[1,3] 孙鹏[1] 

机构地区：[1]林木育种国家工程实验室,林木花卉遗传育种教育部重点实验室,北京林业大学生物科学与技术学院 [2]河北科技师范学院园艺科技学院 [3]北京林业大学林学院,省部共建森林培育与保护教育部重点实验室

出　　处：《北京林业大学学报》2012年第4期42-47,共6页Journal of Beijing Forestry University

基　　金：林业公益性行业科研专项(201004008);"十一五"国家科技支撑计划项目(2006BAD01A1601);"863"国家高技术研究发展计划项目(2007AA100105);农业部公益性行业科研专项(200803034)

摘　　要：为了比较刺槐无性系间的营养差异,分析19个3年生刺槐无性系(6个来自于国内,3个来源于匈牙利,10个来源于韩国)的叶片粗蛋白质、纤维、钙、磷、单宁和18种氨基酸含量,利用必需氨基酸分(AAS)、必需氨基酸指数(EAAI)和模糊最优局势决策法对其营养价值进行了综合评价。结果表明:各刺槐无性系叶片的粗蛋白质、中性洗涤纤维、钙和磷含量均差异不显著,仅无性系K4、K5、A、B和G的酸性洗涤纤维含量显著低于普通刺槐2N(P<0.05),无性系G的单宁含量(6.9g/kg)显著低于2N(28.9g/kg)(P<0.05);各无性系的18种氨基酸总量为159.8～240.0g/kg,且其组成平衡;必需氨基酸分为84.1～118.8,明显高于苜蓿草粉(64.3);必需氨基酸指数表明其可作为牛、鸡、猪、草鱼、羊和兔的优良饲料;综合营养价值除2N、H1、K3和K4与苜蓿草粉相似外,其他无性系均高于苜蓿草粉。Crude protein,fiber,calcium,phosphorus,tannin and 18 kinds of amino acids in the leaves were studied on 19 three-year-old clones of Robinia pseudoacacia,of which 6 were from China （clones 2N,8044,8048,83002,84023 and 3I）,3 from Hungary （H1,H2 and YDL） and 10 from Korea （K1,K2,K3,K4,K5,A,B,C,F and G）.Their nutritive values were evaluated by means of amino acid scores （AAS）,essential amino acid index （EAAI） and general methods.There were significant differences among the clones in acid detergent fiber and tannin but not in crude protein,neutral detergent fiber,and calcium and phosphorus in the leaves.Clones K4,K5,A,B and G had significantly lower contents of acid detergent fiber than Clone 2N （P〈0.05）,while Clone G had a lower tannin content （6.9 g/kg） than 2N （28.9 g/kg） （P〈0.05）.The contents of 18 kinds of amino acids of all clones were both high（159.8--240.0 g/kg） and balanceable.Their nutritive values evaluated by means of amino acid scores （84.1--118.8） were higher than alfalfa （AAS=64.3）.Essential amino acid index proved that all clones could be excellent fodder to cattle,pig,chicken,fish,rabbit and sheep.Clones 2N,H1,K3 and K4 produced similar values to alfalfa from general methods while the other clones had higher values.

关 键 词：刺槐 叶片营养 粗蛋白 氨基酸 无性系 

分 类 号：S792.27[农业科学—林木遗传育种]