遮荫、割草高度和植物生长调节剂对百慕大草和紫云英草推杆果岭的影响

IF 2 3区 农林科学 Q2 AGRONOMY
Crop Science Pub Date : 2024-10-25 DOI:10.1002/csc2.21394
Thomas E. Walton, John H. McCalla, Douglas E. Karcher, Wendell J. Hutchens, Ambika Chandra, Michael D. Richardson
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引用次数: 0

摘要

暖季型草坪草,尤其是杂交百慕大草(Cynodon dactylon (L.) Pers × Cynodon transvaalensis Burtt-Davy),继续在全球热带和亚热带气候条件下的高尔夫球场推杆果岭上广泛使用,在美国过渡带地区也越来越受欢迎。杂交百慕大草能提供优质的推杆果岭表面,但其耐阴和耐寒性相对较差。最近,纹理细密的紫花苜蓿(Zoysia spp.)栽培品种已经上市,可能成为高尔夫球场推杆果岭的另一种潜在选择,尤其是因为紫花苜蓿通常被认为比百慕大草更耐阴。"Lazer (DALZ 1308)" Zoysiagrass(Zoysia matrella (L.) Merrill × Zoysia minima (Colenso) Zotov)是一种新型、纹理细腻的 Zoysiagrass,有可能在过渡带环境中生产出优质的推杆果岭表面。这项为期两年的田间试验的目的是比较 Lazer zoysiagrass 和 TifEagle bermudagrass 在不同光照水平(0%、20%、40%、60% 和 80% 遮光率)和管理措施下的表现,以确定每个品种的最低日光照积分(DLI)要求和表面可打特性(滚球距离和表面坚硬度)。品种地块按两种修剪高度(2.5 毫米和 3.2 毫米)划分,并在每周施用或不施用植物生长调节剂(三奈酚乙酯)的情况下进一步划分。Lazer 的耐阴性明显高于 TifEagle。Lazer 的最低 DLI 要求一般比 TifEagle 低约 10 摩尔 m-2 天-1。Lazer 的表面坚硬度也比 TifEagle 高,而 TifEagle 的滚球距离始终比 Lazer 大。试验结果表明,Lazer 紫花酢浆草能提供可接受的推杆果岭条件,而且比 TifEagle 更适应中度遮荫条件。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Shade, height of cut, and plant growth regulator effects on bermudagrass and zoysiagrass putting greens
Warm‐season turfgrasses, especially hybrid bermudagrass (Cynodon dactylon (L.) Pers × Cynodon transvaalensis Burtt‐Davy), continue to be widely used on golf course putting greens in tropical and subtropical climates globally and are also gaining popularity in the transition zone region of the United States. Hybrid bermudagrass produces a high‐quality putting green surface; however, it has relatively poor shade and cold tolerance. Recently, fine‐textured zoysiagrass (Zoysia spp.) cultivars have been released and may be another potential option for golf course putting greens, especially since zoysiagrass is generally considered more shade tolerant than bermudagrass. “Lazer (DALZ 1308)” zoysiagrass (Zoysia matrella (L.) Merrill × Zoysia minima (Colenso) Zotov) is a new, fine‐textured zoysiagrass that may have the potential to produce high‐quality putting green surfaces in transition zone environments. The objective of this 2‐year field trial was to compare Lazer zoysiagrass to TifEagle bermudagrass under varying light levels (0%, 20%, 40%, 60%, and 80% shade) and management practices to determine the minimum daily light integral (DLI) requirements and surface playability characteristics (ball roll distance and surface firmness) for each species. Species plots were split with two mowing heights (2.5 and 3.2 mm) and further split with or without weekly applications of the plant growth regulator, trinexapac‐ethyl. Lazer demonstrated significantly greater shade tolerance than TifEagle. The minimum DLI requirement for Lazer was generally about 10 mol m−2 day−1 less than TifEagle. Surface firmness was also greater for Lazer zoysiagrass, while TifEagle consistently produced greater ball roll distances than Lazer. Results from this trial demonstrate that Lazer zoysiagrass can produce acceptable putting green conditions and is better adapted than TifEagle to moderate shade conditions.
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来源期刊
Crop Science
Crop Science 农林科学-农艺学
CiteScore
4.50
自引率
8.70%
发文量
197
审稿时长
3 months
期刊介绍: Articles in Crop Science are of interest to researchers, policy makers, educators, and practitioners. The scope of articles in Crop Science includes crop breeding and genetics; crop physiology and metabolism; crop ecology, production, and management; seed physiology, production, and technology; turfgrass science; forage and grazing land ecology and management; genomics, molecular genetics, and biotechnology; germplasm collections and their use; and biomedical, health beneficial, and nutritionally enhanced plants. Crop Science publishes thematic collections of articles across its scope and includes topical Review and Interpretation, and Perspectives articles.
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