Identifying yield-optimizing environments for two cowpea breeding lines by manipulating photoperiod and harvest scenario [0.03%]
通过操控光照周期和收获阶段来识别两个大豆品种优化培育的环境条件
T A Ohler,C A Mitchell
T A Ohler
Photoperiod and harvest scenario of cowpea (Vigna unguiculata L. Walp) canopies were manipulated to optimize productivity for use in future controlled ecological life-support systems. Productivity was measured by edible yield rate (EYR:g m-...
Photosynthetic photon flux, photoperiod, and temperature effects on emissions of (Z)-3-hexenal, (Z)-3-hexenol, and (Z)-3-hexenyl acetate from lettuce [0.03%]
光照量子度、光周期及温度对生菜中( Z )-3-己烯醛、( Z )-3-己烯醇和( Z )-3-己烯基乙酸酯释放的影响
C S Charron,D J Cantliffe,R M Wheeler et al.
C S Charron et al.
To investigate the effects of environment on plant volatile emissions, 'Waldmann's Green' leaf lettuce was cultivated under different levels of photosynthetic photon flux (PPF), photoperiod, and temperature. A modified growth chamber was us...
A system and methodology for measuring volatile organic compounds produced by hydroponic lettuce in a controlled environment [0.03%]
一种测量控制环境中水培生菜挥发性有机化合物产生的系统和方法
C S Charron,D J Cantliffe,R M Wheeler et al.
C S Charron et al.
A system and methodology were developed for the nondestructive qualitative and quantitative analysis of volatile emissions from hydroponically grown 'Waldmann's Green' leaf lettuce (Lactuca sativa L.). Photosynthetic photon flux (PPF), phot...
No evidence of adverse effects on germination, emergence, and fruit yield due to space exposure of tomato seeds [0.03%]
太空搭载对番茄种子萌发、苗期生长及果实产量无不良影响
B A Kahn,P J Stoffella
B A Kahn
Seeds of 'Rutgers California Supreme' tomato (Lycopersicon esculentum Mill.) were exposed to outer space conditions aboard the long duration exposure facility (LDEF) satellite in the space exposed experiment developed for students (SEEDS) p...
Interacting effects of photoperiod and photosynthetic photon flux on net carbon assimilation and starch accumulation in potato leaves [0.03%]
光周期和光强对马铃薯叶片净碳同化速率及淀粉积累的互作效应
G W Stutte,N C Yorio,R M Wheeler
G W Stutte
The effect of photoperiod (PP) on net carbon assimilation rate (Anet) and starch accumulation in newly mature canopy leaves of 'Norland' potato (Solanum tuberosum L.) was determined under high (412 varies as mol m-2s-1) and low (263 varies ...
Radiation in controlled environments: influence of lamp type and filter material [0.03%]
可控环境中的辐射：灯具类型和过滤材料的影响
D L Bubenheim,B Bugbee,F B Salisbury
D L Bubenheim
Radiation in controlled environments was characterized using fluorescent and various high-intensity-discharge (HID) lamps, including metal halide, low-pressure sodium, and high-pressure sodium as the radiation source. The effects of water, ...
Growth and gas exchange by lettuce stands in a closed, controlled environment [0.03%]
密闭环境中 lettuce 的生长及其气体交换
R M Wheeler,C L Mackowiak,J C Sager et al.
R M Wheeler et al.
Two studies were conducted in which 'Waldmann's Green' lettuce (Lactuca sativa L.) was grown hydroponically from seed to harvest in a large (20-m2), atmospherically closed growth chamber for the National Aeronautics and Space Administration...
Calcium localization in lettuce leaves with and without tipburn: comparison of controlled-environment and field-grown plants [0.03%]
控制和田间条件下低温应激生菜植株的尖枯症状与叶片钙分布的关系
D J Barta,T W Tibbitts
D J Barta
An electron microprobe was used to determine tissue concentrations of Ca across 20-mm-long leaves of 'Green Lakes' crisphead lettuce (Lactuca sativa L.) with and without tipburn injury. Concentrations within the fifth and 14th leaves, count...
W Cao,T W Tibbitts
W Cao
The physiological responses of four potato (Solanum tuberosum L.) cultivars to continuous irradiation were determined in a controlled environment. Under a constant 18C and a constant photoperiod of 470 micromoles s-1 m-2 of photosynthetic p...