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首页> 外文会议>International Turfgrass Society research journal >WINTER CULTURAL PRACTICES AND SHADE IMPACTS ON ‘TIFEAGLE’ BERMUDAGRASS SPRING GREEN-UP
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WINTER CULTURAL PRACTICES AND SHADE IMPACTS ON ‘TIFEAGLE’ BERMUDAGRASS SPRING GREEN-UP

机译：冬季文化习俗和对“ TIFEAGLE”皮革的春天的阴影影响

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Turfgrass practitioners desire alternatives to overseeding hybrid bermudagrass (Cynodon dactylon (L.) Pers.X C.transvaalensis Burtt-Davy) because successful spring transition back to bermudagrass following winter overseeding is often unpredictable and results can be undesirable.Turf colorant can improve the turf appearance and television coverage either when the turf is under stress or dormancy.A two-year lysimeter study evaluated the impacts of different cultural practices (overseed,colorant use,as alternative of overseeding,and dormant turfgrass) and in sun and shade on ‘TifEagle’ bermudagrass (Cynodon dactylon (L.) Pers.X C.transvaalensis Burtt-Davy) spring transition and summer performance.Tifeagle sod for overseed,colorant,and control treatments was harvested from field research plots on 8 March 2006 and 15 March 2007 and,placed in lysimeters 40 cm in height and 15 cm in diameter filled with 30 cm of 85:15 sand:peat (v:v) and 10 cm of gravel (8 to 10 mm in diameter) at the Clemson University Turfgrass Research Center,and subjected to full sunlight and 55% continuous shade.Data collection included spring green-up (SGU),visual turfgrass quality ratings (TQ),total shoot chlorophyll,and root total non-structural carbohydrates (TNC).Using a colorant provided the earliest SGU.Shade negatively impacted SGU for all treatments on various rating dates.By the end of May for both years,the overseed sun treatment had 39% greater SGU compared to the overseed shade treatment.Shadegrown colorant-treated TifEagle showed ~37% less SGU from week 2 through week 5 compared to sun-grown colorant treated turf.On the final SGU rating date,sun-grown colorant treatment exhibited greater SGU compared to sun-grown overseed treatment.In July,colorant treated sun-grown TifEagle had a 69% increase in root TNC compared to shadegrown overseeded TifEagle bermudagrass.This study indicates colorant-use provides an alternative to overseeding bermudagrass by providing adequate winter color and a greater SGU under shade treatment.
机译：草坪草的从业者希望有替代种来替代杂交百慕大草（Cynodon dactylon（L.）Pers.X C.transvaalensis Burtt-Davy），因为冬季过度播种后春季成功过渡到百慕大草通常是无法预测的，而且效果不理想。草坪着色剂可以改善草皮草坪压力或休眠时的外观和电视覆盖率。一项为期两年的溶渗仪研究评估了不同文化习俗（原汁原味，使用着色剂，替代草皮和休眠草皮）以及'TifEagle在阳光和阴影下的影响百慕大草（Cynodon dactylon（L.）Pers.X C.transvaalensis Burtt-Davy）春季过渡期和夏季表现。2006年3月8日和2007年3月15日，田间研究区收获了提弗格尔草皮，用于种子，着色剂和对照处理。放置在高度为40厘米，直径为15厘米的溶渗仪中，在克莱姆森（Clemson）处填充30厘米的85:15砂：豌豆（v：v）和10厘米的砾石（直径为8至10毫米）大学草坪研究中心，在阳光直射和55％连续阴影的条件下进行。数据收集包括春季绿化（SGU），视觉草坪草质量等级（TQ），总枝叶绿素和根总非结构性碳水化合物（TNC）。使用着色剂提供最早的SGU。在各种评级日期下，阴影对所有处理的SGU均具有负面影响。到5月底为止的两年中，与种子阴影处理相比，用种子进行的阳光处理的SGU均高39％.Shadegrown着色剂处理过的TifEagle与晒干的着色草皮相比，第2周到第5周的SGU减少了约37％。在最终的SGU评级日期，晒干的着色剂处理比晒黑的草皮处理的SGU更大。7月，晒干的着色剂处理种植的TifEagle根部TNC较遮荫种植的TifEagle百慕大草增加69％。这项研究表明，着色剂的使用通过提供足够的冬季颜色和灰分提供了替代过度种植百慕大草的替代方法。食者SGU在遮荫下治疗。

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