+ Visit NASA.gov + Contact NASA   + Home Select Search Field * All Report - Patent Number Abstract *Accession Number *NASA Center *Author NameDocument IDKeywordsPublication Date *Title * Find Results With All of the words At least one of the words Enter Search Term  within returned results    Search Tips: Use only the fields with * to search NIX collection. Enclose terms in double quotation marks (") to search for exact phrases, ie: "space shuttle". NOTE: Commas and dashes are removed from search term by search engine. Select Reset Search button to start a new search. See Help for more tips. + NASA Center + Publication Year + Subject + Availability Options + Item/Media Type Selected Navigations: Author > Mitchell, C. A. [x] Sort results by: NASA Center | Date Added to NTRS | Publication Year There are a total of 35 record(s) matching your query. Sorted by: Date Added To NTRS in Descending order 1 2 3 4 Next  Physiological mode of action in mechanical stress regulation of plant growth Author(s): Mitchell, C. A. Abstract: No Abstract Available NASA Center: NASA (non Center Specific) Publication Year: 1980 Added to NTRS: 2008-11-13 Accession Number: 82N76437; Document ID: 19820071168 Stimulating productivity of hydroponic lettuce in controlled environments with triacontanol Author(s): Knight, S. L.; Mitchell, C. A. Abstract: Triacontanol (1-triacontanol) applied as a foliar spray at 10(-7) M to 4-day-old, hydroponically grown leaf lettuce (Lactuca sativa L.) seedlings in a controlled environment increased leaf fresh and dry weight 13 to 20 and ... NASA Center: NASA (non Center Specific) Publication Year: 1987 Added to NTRS: 2006-08-02 Document ID: 20040089628 Mechanical stress regulation of plant growth and development Author(s): Mitchell, C. A.; Myers, P. N. Abstract: The authors introduce the chapter with a discussion of lessons from nature, agriculture, and landscapes; terms and definitions; and an historical perspective of mechanical stress regulation of plant growth and development. ... NASA Center: Kennedy Space Center Publication Year: 1995 Added to NTRS: 2006-08-02 Document ID: 20040089148 The role of bioregenerative life-support systems in a manned future in space Author(s): Mitchell, C. A. Abstract: Thus far in the manned space program, human life support has depended on storage of air, water, food, and energy. There are no refrigerators on Shuttle, and fresh foods are limited to what can be stowed in lockers for the ... NASA Center: NASA (non Center Specific) Publication Year: 1993 Added to NTRS: 2006-08-02 Document ID: 20040090336 Calcium ion involvement in growth inhibition of mechanically stressed soybean (Glycine max) seedlings Author(s): Jones, R. S.; Mitchell, C. A. Abstract: A 40-50 reduction in soybean [Glycine max (L.) Merr. cv. Century 84] hypocotyl elongation occurred 24 h after application of mechanical stress. Exogenous Ca2 at 10 mM inhibited growth by 28 if applied with the Ca2 ionophore ... NASA Center: NASA (non Center Specific) Publication Year: 1989 Added to NTRS: 2006-08-02 Document ID: 20040089910 Effects of incandescent radiation on photosynthesis, growth rate and yield of 'Waldmann's Green' leaf lettuce Author(s): Knight, S. L.; Mitchell, C. A. Abstract: Effects of different ratios incandescent (ln) to fluorescent (Fl) radiation were tested on growth of 'Waldmann's Green' leaf lettuce (Lactuca sativa L.) in a controlled environment. After 4 days of treatment, dry weight, ... NASA Center: NASA (non Center Specific) Publication Year: 1989 Added to NTRS: 2006-08-02 Document ID: 20040089857 Varying plant density and harvest time to optimize cowpea leaf yield and nutrient content Author(s): Ohler, T. A.; Nielsen, S. S.; Mitchell, C. A. Abstract: Plant density and harvest time were manipulated to optimize vegetative (foliar) productivity of cowpea [Vigna unguiculata (L.) Walp.] canopies for future dietary use in controlled ecological life-support systems as ... NASA Center: NASA (non Center Specific) Publication Year: 1996 Added to NTRS: 2006-08-02 Document ID: 20040089730 Identifying yield-optimizing environments for two cowpea breeding lines by manipulating photoperiod and harvest scenario Author(s): Ohler, T. A.; Mitchell, C. A. Abstract: 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 ... NASA Center: NASA (non Center Specific) Publication Year: 1996 Added to NTRS: 2006-08-02 Document ID: 20040089739 Transfer from long to short photoperiods affects production efficiency of day-neutral rice Author(s): Goldman, K. R.; Mitchell, C. A. Abstract: The day-neutral, semidwarf rice (Oryza sativa L.) cultivar Ai-Nan-Tsao was grown in a greenhouse under summer conditions using high-pressure sodium lamps to extend the natural photoperiod. After allowing 2 weeks for ... NASA Center: NASA (non Center Specific) Publication Year: 1999 Added to NTRS: 2006-08-02 Document ID: 20040089007 Dynamic control of photosynthetic photon flux for lettuce production in CELSS Author(s): Chun, C.; Mitchell, C. A. Abstract: A new dynamic control of photosynthetic photon flux (PPF) was tested using lettuce canopies growing in the Minitron II plant-growth/canopy gas-exchange system. Canopy photosynthetic rates (Pn) were measured in real time and ... NASA Center: NASA (non Center Specific) Publication Year: 1996 Added to NTRS: 2006-08-02 Document ID: 20040089204 1 2 3 4 Next  + Back to Top + Sponsored by the NASA Scientific and Technical    Information Program + 2004 Vision for Space Exploration + Freedom of Information Act + NASA Web Privacy Policy and Important Notices + NASA Disclaimers, Copyright Notice,    and Terms and Conditions of Use NASA Official: Calvin Mackey Page Curator: NASA Center for AeroSpace Information (help@sti.nasa.gov) Last Updated: July 5, 2007