Abstract Cotton (Gossypium spp.) production around the world often occurs in water limiting environments. Although Upland (G. hirsutum) and Pima (G. barbadense) cottons have been evaluated under conditions of water stress before; these two species are rarely compared to each other. This may be due to differences in irrigation management and environmental constraints (i.e. season length). In 2014 and 2015, two Upland cultivars and two Pima germplasm lines were evaluated at Lubbock, TX, USA. Plant architecture, boll retention, lint yield and fiber quality were assessed under three deficit subsurface drip irrigation levels. Crop water use was evaluated using soil water balance in conjunction with neutron probe soil water content measurements. In 2014 during flowering at the high irrigation rate, Upland cultivars extracted significantly (p

中文翻译：

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德克萨斯高原高地（Gossypium hirsutum L.）和皮马（G. barbadense L.）棉花形态、产量和纤维品质性状对亏缺灌溉的响应

摘要 世界各地的棉花 (Gossypium spp.) 生产经常发生在限水环境中。尽管之前已经在水分胁迫条件下对陆地棉（G. hirsutum）和比马棉（G. barbadense）进行了评估；这两个物种很少相互比较。这可能是由于灌溉管理和环境限制（即季节长度）的差异所致。2014 年和 2015 年，在美国德克萨斯州拉伯克对两个陆地栽培品种和两个比马种质系进行了评估。在三种亏缺地下滴灌水平下评估植物结构、棉铃保留、皮棉产量和纤维质量。使用土壤水平衡结合中子探针土壤含水量测量来评估作物用水。在 2014 年高灌溉率开花期间，旱地栽培品种提取显着（p