自交结实海滨雀稗新品系生长特性及坪用质量评价  

Evaluation of Growth Characteristics and Turf Quality of New Strains of Self-compatible Paspalum vaginatum

作　　者：刘智微[1] 钟小仙[1] 钱晨[1] 潘玉梅[1] 张建丽[1] 吴娟子[1] LIU Zhi-wei ZHONG Xiao-xian QIAN Chen PAN Yu-mei ZHANG Jian-li WU Juan-zi(Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China)

机构地区：[1]江苏省农业科学院畜牧研究所,江苏南京210014

出　　处：《中国草地学报》2016年第6期85-92,共8页Chinese Journal of Grassland

基　　金：江苏省自主创新项目CX(14)2049;江苏省农业三新工程项目SXGC[2015]334

摘　　要：为了探究自交结实海滨雀稗新品系SP2008-2和SP2008-3的生长特性和坪用质量,以自交不亲和海滨雀稗Adalady和海滨雀稗杂交种Sea Spray为对照,对新品系SP2008-2和SP2008-3开展了三年大田品比试验,从物候期、植物学特性、自交结实性、草坪密度、质地、色泽、均一性等指标进行观察、测定、分析。结果表明:SP2008-2和SP2008-3自交结实率分别为20.65%和37.67%,种子千粒重分别为0.4691g和0.4959g;叶色深绿,草坪密度较高,分别为2.66个分蘖/cm^2和2.83个分蘖/cm^2;质地细腻,叶片平均宽度分别为2.83mm和3.03mm;抗旱性、耐热性、抗寒性、抗杂草侵占能力强,全年无明显病虫危害;成坪速度较快,以1∶5比例进行草茎条播,80~90d即可成坪,在南京地区绿色期>250d。In the past three years,the growth characteristics and turf quality of self-compatible seashore Paspalum SP2008-2and SP2008-3studied compared with self-incompatibility seashore paspalum Adalady and seashore paspalum hybrid Sea Spray.Phenophase,botanical characteristics,self-compatibility,turf density,texture,color,uniformity and other indicators were observed,measured and analyzed.The results showed that seed setting rates of SP2008-2and SP2008-3were 20.65% and 37.67% and thousands-seed weight were 0.4691 g and 0.4959 g,respectively.SP2008-2and SP2008-3were characterized by having dark green color,high turf density and fine texture,and their ability of resistance to drought,heat,cold,weeds,pest and disease were strong.Tiller numbers of SP2008-2and SP2008-3were 2.66/cm^2 and 2.83/cm^2 and the average width of leaves were 2.83 mm and 3.03 mm,respectively.The speed to be lawn was fast,about 80-90days by stems drilling of 1∶5ratio,and green period lasted more than 250 days in Nanjing.

关 键 词：海滨雀稗 自交结实 生长特性 坪用质量 评价 

分 类 号：S543[农业科学—作物学]