一种越南雀稗的引种适应性研究  

Study on the Introduction Adaptability of a Species of Paspalum from Vietnam

作　　者：李雅辉 孟桂智 曹树威[2] 赖大伟 杨启晟 赖志强[2] 蔡小艳 Li Yahui;Meng Guizhi;Cao Shuwei;Lai Dawei;Yang Qisheng;Lai Zhiqiang;Cai Xiaoyan(Agricultural College of Ningxia University,Yinchuan 750021,China;Guangxi institute of animal science,Nanning 530001,China)

机构地区：[1]宁夏大学农学院,宁夏银川750021 [2]广西壮族自治区畜牧研究所,广西南宁530001

出　　处：《草学》2021年第6期35-38,42,共5页Journal of Grassland and Forage Science

基　　金：宁夏回族自治区科技攻关计划(2018BEB04031)资助。

摘　　要：为了研究2014年从越南引进的高产雀稗品种Paspalum plictulum Mich X.var.glabrum Arechav(Pa1)在南宁地区的生产性能,采用品比试验的方法,连续2年与宽叶雀稗(Pa2)、杂交臂形草(Pa3)、黑籽雀稗(Pa4)等优质雀稗品种进行比较。结果表明:2014Pa1年鲜草产量为65.73±13.18t·hm^(-2),2015年鲜草产量为148.34±18.65t·hm^(-2),2年的鲜草产量差异显著(P<0.05),Pa2、Pa3等品种2年鲜草产量差异不显著(P>0.05)。Pa1年均鲜草产量为107.04±5.99t·hm^(-2),显著高于Pa2、Pa3(P<0.05);Pa1年均干草产量为18.37±1.03t·hm^(-2),比Pa2高46.26%,比Pa4低24.25%,差异均显著(P<0.05),与Pa3差异不显著;Pa1的年均株高为155.23±5.31cm,显著高于Pa2、Pa3(P<0.05);Pa1鲜草茎、叶比为1∶1.29,干草茎、叶比为1.65∶1,干草茎叶比值比Pa4低30.3%;Pa1干物质率为17.16±0.86%,比Pa2低36.54%,差异显著(P<0.05),与Pa4相比则差异不显著(P>0.05)。与Pa2、Pa3等品种相比,Pa1鲜草产量优势显著,但与年度降水量相关性高,与Pa4相比,干物质叶重比更高,草品质更好,说明Pa1是一种开发潜力大的牧草资源。In order to study the production performance of the Paspalum variety-Paspalum plictulum Mich X.var.glabrum Arechav(Pa1),which was introduced from Vietnam in 2014,in Nanning,this study employed the method of comparison test,comparing the introduced variety with another three varieties:Paspalum wettsteinii Hack.(Pa2),Brachiaria hybrid cv.(Pa3)and Paspalum atratum Bra.(Pa4)for two consecutive years(Pa1,Pa2,Pa3 and Pa4 were the test numbers of each variety).The result showed that:the fresh grass yield of Pa1 in 2014 and 2015 was 65.73±13.18t·hm^(-2) and 148.34±18.65t·hm^(-2) respectively.The fresh grass yield difference of Pa1 between the two years was significant(P<0.05)while that of Pa2 and Pa3 was not significant(P>0.05).The average annual fresh grass yield of Pa1 was 107.04±5.99t·hm^(-2),which was significantly higher than that of Pa2 and Pa3(P<0.05);The average annual hay yield of Pa1 was 18.37±1.03t·hm^(-2),46.26%higher than that of Pa2 and 24.25%lower than that of Pa4,the differences were both significant(P<0.05),but,when compared with that of Pa3,the difference was not significant(P>0.05).The average plant height of Pa1 was 155.23±5.31cm,which was significantly higher than that of Pa2 and Pa3(P<0.05);The weight ratio of fresh grass stem to leaf of Pa1 was 1∶1.29 while the weight ratio of hay stem to leaf was 1.65∶1,and the weight ratio of hay stem to leaf was 30.3%lower than that of Pa4.The dry matter rate of Pa1 was 17.16±0.86%,which was 36.54%lower than that of Pa2,and the difference is significant(P<0.05),while,compared with Pa4,the difference was not significant(P>0.05).Compared with Pa2 and Pa3,the advantage of Pa1 in fresh grass yield was significant,however,the yield showed high correlation with annual precipitation.Compared with Pa4,Pa1 showed better qualities such as higher dry matter content,higher weight ratio of leaf to stem,so it is a kind of forage resource which shows great development potential.

关 键 词：越南雀稗 品比试验 产量 株高 干物质率 茎叶比 

分 类 号：S543.022[农业科学—作物学]