首页> 外文会议>Annual Meeting of the Plant Growth Regulation Society of America >MIXED VS. MONOCULTURE HYDROPONIC PRODUCTION OF SALAD CROPS AT THREE CO_2 CONCENTRATIONS
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MIXED VS. MONOCULTURE HYDROPONIC PRODUCTION OF SALAD CROPS AT THREE CO_2 CONCENTRATIONS

机译:混合与三种CO_2浓度的沙拉作物的单一栽培水培生产

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Development of cropping systems for use on the International Space Station, long duration transit missions, and lunar or Mars habitats has been a part of NASA's Advanced Life Support (ALS) research efforts for many years. Growth of multiple crops on acommon solution will increase efficiency, but may result in allelopathic responses and decreased yields. Three candidate ALS salad crops, radish (Raphanus sativus L. cv. Cherry Bomb II), lettuce (Lactuca saliva L. cv. Flandria) and bunching onion (Allium fistulosum L. cv. Kinka) were grown hydroponically in either a monoculture (control) or mixed cropping (MC) arrangement in a walk-in growth chamber at three CO_2 concentrations (400,1200 and 4000 umol mol~(-1)) to determine if allelopathic responses were occurring. The chambers were maintained at 22°C, 50% RH, and 300 umol m~(-2) s~(-1) PPF with a 16-h light/8-h dark photoperiod using cool-white fluorescent lamps (17.3 mol m~(-2)d~(-1) PAR).
机译:在国际空间站使用的种植系统的开发,长期过境任务和农历或火星栖息地的一部分是美国宇航局的先进生活支持(ALS)研究努力多年的一部分。在Acommon溶液上的多种作物的生长将提高效率,但可能导致化感应反应和产量下降。三个候选Als沙拉作物,萝卜(Raphanus sativus L. cv。樱桃炸弹II),生菜(Lactuca saliva l. cv。佛兰德里亚)和聚集的洋葱(葱属瘘管L. cv。Kinka)在一种单一栽培中,水疏入(对照)或在三个CO_2浓度(400,1200和4000μmolmol〜(-1)中的步入式生长室中混合种植(MC)布置,以确定是否发生了异教徒反应。使用冷白荧光灯(17.3摩尔),将腔室保持在22℃,50%RH和300μmM〜(-2)S〜(-1)PPF中,用16-H光/ 8-H深色光周期(17.3摩尔m〜(-2)d〜(-1)par)。

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