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首页> 外文期刊>Journal of Turfgrass Management >Characterization of tall fescue and perennial ryegrass cultivars.
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Characterization of tall fescue and perennial ryegrass cultivars.

机译：高羊茅和多年生黑麦草品种的特征。

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摘要

There is a growing interest in using either perennial ryegrass (Lolium perenne) or tall fescue (Festuca arundinacea) for medium to high quality turfs in the north central area of the United States. While many new cultivars have been evaluated through the National Turfgrass Evaluation Program (NTEP) across the United States for general turf performance, an overall characterization of the selected experimental cultivars has not been undertaken. Several experiments were established to help characterize the relative germination, overall turf quality in both ambient and reduced light, the root system, and susceptibility to disease of these cultivars. Field experiments were established to evaluate the experimental cultivars and standard cultivars or other species or blends on a Catlin silt loam (Typic Argiudoll) with a pH of 6.4 and 5% organic matter. All species were maintained at a 3.8 cm mowing height. Additional experiments were established in controlled environments to measure root development anddisease tolerance. On average, the quality of the experimental tall fescue cultivar WVPB-88-TF-89-201 in ambient light was rated in the highest quality mean group. Three experimental tall fescues, WVPB-88-TF-C-10, WVPB-88-TF-89- 201, and WVPB-88-TF-B-21were rated the highest quality in 96% reduced light. Total root length was not significantly different for any cultivars. The cultivars Aztec, Bonsai, and Twilight are considered dwarf-type tall fescues and had similar root mass to all of the other turf-type tall fescues. While there were significant differences in disease severity ratings among perennial ryegrass or tall fescue cultivars. No cultivar was considered to be resistant to the evaluated diseases.
机译：在美国北部中部地区，将多年生黑麦草（Lolium perenne）或高羊茅（Festuca arundinacea）用于中高品质草皮的兴趣日益浓厚。尽管许多新品种已经通过美国全国草皮草评估计划（NTEP）评估了一般草皮的性能，但尚未对所选实验品种进行总体鉴定。建立了几个实验来帮助表征相对发芽，环境和弱光下的整体草皮质量，根系以及这些品种对疾病的敏感性。建立了现场实验，以评估在pH值为6.4和有机物含量为5％的Catlin淤泥质壤土（典型Argiudoll）上的实验品种和标准品种或其他品种或混合物。所有物种保持在3.8厘米的割草高度。在受控环境中建立了额外的实验来测量根发育和疾病耐受性。平均而言，实验性高羊茅品种WVPB-88-TF-89-201在环境光下的质量被评定为最高质量均值组。在96％的减光下，三个实验性高羊茅，WVPB-88-TF-C-10，WVPB-88-TF-89-201和WVPB-88-TF-B-21被评为最高质量。所有品种的总根长没有显着差异。品种Aztec，Bonsai和Twilight被认为是矮型高羊茅，并且根重与所有其他草皮高羊茅类似。虽然多年生黑麦草或高羊茅品种的疾病严重性等级存在显着差异。没有品种被认为对所评估的疾病具有抗性。

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