不同追播处理的Tifway生物量及追播草坪综合质量差异性研究  

Study on diversity of over-seeding lawn quality and biomass of tifway grass under different disposals

作　　者：胥晓刚[1] 吴彦奇[1] 杨冬生[1] 胡庭兴[1] 

机构地区：[1]四川农业大学,四川雅安625014

出　　处：《草业学报》2005年第2期109-115,共7页Acta Prataculturae Sinica

摘　　要：1998-2000年,选用多花黑麦草、多年生黑麦草、紫羊茅、匍匐翦股颖在四川农业大学草学试验基地的种间杂交狗牙根Tifway(Cynodon dactylon×C. transvaalensis)模拟运动场地进行冬季追播试验。结果表明,未处理Tif way的地上生物量随温度升高而增加,而地下生物量的变化趋势不明显,地上、地下生物量比值保持在一个稳定区间,追播处理下Tifway的地下、地上生物量比值发生明显变化。除用多花黑麦草追播的草坪质量低于Tifway单播外,其余追播处理的草坪质量均优于单播Tifway草坪,其中追播多年生黑麦草后的混合草坪质量评分最高,为7.27分(1999年,98 D a)。另外,追播草坪质量与播种量呈负相关(相关系数为-0.228和-0.212),与播种时间呈正相关(相关系数为0.461)。Lolium multiflorum, Lolium perenne, Festuca rubra and Agrostis stoloniferra were tested for over seeding on Cynodon dactylon×C.transvaalensis (Tifway) turf, which was a simulated sport turf in grassland expermental base of Sichuan agricultural University during 1999 and 2000. The results indicated that aboveground biomass of Cynodon dactylon×C.transvaalensis turf increased signicantly with temperature raise, but underground biomass had not changed. The proportion of aboveground biomass to compare with underground biomass on over seeding plots was higher than control treatment, The quality of all of over seeding turf was better than contrast exceped using L.multiflorum over seeding. The good mark of using L. perenne over seeding turf was 7.27 (1999,98-p-a) , The relationship between quality of over seeding turf and seeding rate was negative relation, and the relative coefficient was -0.228 (1999) and -0.212 (2000), but it and seeding date was a positive relation with 0.461 of the relative coefficient.

关 键 词：追播 生物量 草坪质量 Tifway 

分 类 号：S688.4[农业科学—观赏园艺] Q945.79[农业科学—园艺学]