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首页> 外文期刊>Crop Science >Salinity Effects on Seed Germination and Vegetative Growth of Greens-Type Poa annua Relative to Other Cool-Season Turfgrass Species
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Salinity Effects on Seed Germination and Vegetative Growth of Greens-Type Poa annua Relative to Other Cool-Season Turfgrass Species

机译：相对于其他冷季草坪草物种，盐度对绿化型Poa anua种子萌发和营养生长的影响

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摘要

Seed germination and vegetative growth studies were conducted to determine relative salinity tolerance of greens-type Poa annua L. compared with other cool-season turfgrass species. Effects of increasing salinity stress on final germination percentage (FGP), germination rate (GR), clipping yield dry weight (CYD), verdure dry weight (VD), root dry weight (RD), and the longest root length (LRL) were evaluated for nine experimental lines of greens-type P. annua, two cultivars of Kentucky bluegrass (P. pratensis L.), three cultivars of creeping bentgrass (Agrostis stolonifera L.), and one cultivar of perennial ryegrass (Lolium perenne L.). Generally, FGP, GR, CYD, VD, and RD declined with increasing salinity; LRL increased at lower salinity levels but decreased at higher levels. Perennial ryegrass ‘Charger II’ and creeping bentgrass ‘Mariner’ exhibited the most salinity tolerance while Kentucky bluegrass cultivars exhibited the least. Salinity tolerance of greens-type P. annua was intermediate; however, some experimental lines exhibited nearly equal salinity tolerance to that of Mariner. Our data suggest greens-type P. annua possesses moderate to good salinity tolerance during seed germination and vegetative growth relative to other cool-season turfgrass species and has potential to be used on golf courses with moderate salt problems affecting turf establishment and maintenance.
机译：进行了种子发芽和营养生长研究，以确定与其他凉季草皮草种相比，绿色型Poa annua L.的相对耐盐性。 盐分胁迫对最终发芽率（FGP），发芽率（GR），修剪产量干重（CYD）， 鲜干重（VD），根的影响分别对九种青菜型P. annua的实验系 ，肯塔基州蓝草的两个品种进行了干重（RD）和最长 根长（LRL）的评估。 （P. pratensis L.），三个变种的弯曲草（Agrostis stolonifera L.）和一个多年生黑麦草的品种（Lolium perenne L.） 。通常，随着盐度的增加，FGP，GR，CYD，VD和RD下降。 LRL在较低盐度水平下会增加 ，但在较高盐度下会下降。多年生黑麦草'Charger II'和creep草'Mariner'表现出最高的耐盐性，而肯塔基州蓝草品种 的表现最小。绿果型P. annua 的耐盐性中等。但是，一些实验品系显示的 盐度耐受性几乎与Mariner相同。我们的数据 建议的绿色型P. annua在种子萌发期间具有中度至良好的盐度 耐性，并且相对于其他凉季草皮草物种的营养生长相对 并有可能在高尔夫球场中使用 ，其中盐度适中的问题会影响 草坪的建立和维护。

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  • 来源
    《Crop Science》 |2009年第2期|696-703|共8页
  • 作者

    Jing Dai; David R. Huff; Maxim J. Schlossberg;

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    Dep. of Crop and Soil Sciences, The Pennsylvania State Univ., University Park, PA 16802. Mention of trade names or commercial products in this article is solely for the purpose of providing information and does not imply recommendation or endorsement by The Pennsylvania State University;

    Dep. of Crop and Soil Sciences, The Pennsylvania State Univ., University Park, PA 16802. Mention of trade names or commercial products in this article is solely for the purpose of providing information and does not imply recommendation or endorsement by The Pennsylvania State University;

    Dep. of Crop and Soil Sciences, The Pennsylvania State Univ., University Park, PA 16802. Mention of trade names or commercial products in this article is solely for the purpose of providing information and does not imply recommendation or endorsement by The Pennsylvania State University;

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