【摘要】 [目的]为了研究不同玉米品种的青贮特性。[方法]从辽宁省正在进行的各级试验中,挑选持绿性比较好的60个玉米新品种作为试验材料,在最适密度条件下测定了主要田间农艺性状、生物产量和青贮品质等综合性状。[结果]YR1,辽1201,丹玉509,辽751,良玉DL1309,辽单575等6个品种在鲜重和干物质方面表现比较突出。试验品种粗蛋白含量均较高,47个品种达到7%以上的标准;丹玉509,辽1201,辽单352,吉农玉1595,辽单343,丹116,吉单1259,粗纤维小于17%。[结论]结合鲜重、干重、粗蛋白、粗纤维、可溶性总糖的指标,辽1201和丹玉509在青贮特性方面比较优良。更多还原

【Abstract】 [Objectives] The research was to study silage quality in different Maize hybrids. [Method] 60 new hybrids with good green retention were selected from the test material in Liaoning province. The comprehensive traits including the main agronomic traits, the determination of biological yield and silage quality etc. were tested under the optimum density. [Results] The fresh and dry weight of YR1, Liao 1201,Danyu 509, Liao 751, Liang Yu DL1309, and Liaodan 575, was relatively good. The crude protein content of47 varieties were higher than 7%. There were Danyu 509, Liao1201 and Liaodan 352, Jinongyu 1595, Liaodan343, Dan 116, and Jidan 1259, crude fiber of which was less than 17%. In combination with the indexes of fresh weight, dry weight, crude protein, crude fiber and total soluble sugar, the silage characteristics of Liao1201 and Danyu 509 were better.更多还原