Growth Responses of Hydroponically Grown Sweetpotato Tolerant and Intolerant of a Continuous Daily Light Period

  title={Growth Responses of Hydroponically Grown Sweetpotato Tolerant and Intolerant of a Continuous Daily Light Period},
  author={D. Mortley and P. A. Loretan and W. Hill and C. Bonsi and C. E. Morris},
Two sweetpotato (Ipomoea batatas (L.) Lam) genotypes ('Georgia Jet' and the breeding clone TI-155) were grown at 12-, 15-, 18-, and 21-h light/12-, 9-, 6-, 3-h dark cycles, respectively, to evaluate their growth and elemental concentration responses to duration and amount of daily lighting. Vine cuttings (15 cm long) of both genotypes were grown in rectangular nutrient film technique channels for 120 days. Conditions were as follows: photosynthetic photon flux (PPF) mean 427 μmolm -2 •s -1… Expand
Physiological, Morphological Changes and Storage Root Yield of Sweetpotato [Ipomoea batatas (L.) Lam.] under PEG-Induced Water Stress
Chlorophyll degradation, chlorophyll fluorescence diminution and stomatal closure were found in plants grown under PEG-induced water deficit conditions, leading to reduction in net photosynthetic rate and subsequently lesser amounts of glucose and fructose contents in the leaf tissues. Expand
Influence of Microgravity Environment on Root Growth, Soluble Sugars, and Starch Concentration of Sweetpotato Stem Cuttings.
  • D. Mortley, C. Bonsi, +7 authors R. Wheeler
  • Biology, Medicine
  • Journal of the American Society for Horticultural Science. American Society for Horticultural Science
  • 2008
Investigation of the impact of microgravity on root growth, distribution of amyloplasts in the root cells, and on the concentration of soluble sugars and starch in the stems of sweetpotatoes suggests that the space flight environment did not adversely impact sweetpotato metabolism and that vegetative cuttings should be an acceptable approach for propagatingSweetpotato plants for space applications. Expand
Relationship between vine propagation method, and growth and yield in sweetpotato[Ipomoea batatas(l.)lam]
This study concluded that propagation method does not affect the development and yield of sweetpotato (p ≤ 0.05). Expand
Sweet potato production in a short-season area utilizing black plastic mulch: effects of cultivar, in-row plant spacing, and harvest date on yield parameters.
The sweet potato (Ipomoea batatas (L.) Lam.) requires a long, hot growing season to attain good yields. In a cool climate, the use of black plastic mulch to heat the soil can improve growth butExpand
The Combined Conditions of Photoperiod, Light Intensity, and Air Temperature Control the Growth and Development of Tomato and Red Pepper Seedlings in a Closed Transplant Production System
Understanding environmental factors is essential to maximizing the biomass production of plants. There have been many studies on the effects of the photosynthetic photon flux (PPF), photoperiod andExpand
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Chrysanthemum morifolium plants cv. Reagan Sunny were exposed to different photoperiod at two stages of flowering namely flower bud initiation and flower bud development. The photoperiods tested wereExpand
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閉鎖型植物工場における連続光の利用(第2報) 連続光下におけるキク科・その他作物の生育様相ならびに障害発生
We comprehensively reviewed altered growth habits and leaf injuries occurring under continuous light for Asteraceae, Brassicaceae, Leguminosae, Convolvulaceae, Lamiaceae, Rosaceae, Poaceae, Pinaceae,Expand
閉鎖型植物工場における連続光の利用(第3報) 連続光障害の緩和要因と耐性の相対評価
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Response of Sweetpotatoes to Continuous Light
Sweetpotato [Ipomoea batatas (L.) Lam.] is one of the four root crops with subsurface edible parts that have been selected as potentially important crops for the Controlled Ecological Life SupportExpand
Irradiance and nitrogen to potassium ratio influences sweetpotato yield in nutrient film technique
The objective was to evaluate the effects of two levels of photosynthetic photon flux and three N/K ratios on yield of sweetpotato when grown using this technique. Expand
Reversibility of Photosynthetic Inhibition in Cotton after Long-Term Exposure to Elevated CO(2) Concentrations.
The rapid and complete reversal of photosynthetic inhibition suggests that the appearance of large, strong sinks at certain developmental stages could result in reduction of the large starch accumulations and that photosynthesis rates could recover to near the theoretical capacity during periods of high photosynthate demand. Expand
Plant Spacing Influences Yield and Linear Growth Rate of Sweetpotatoes Grown Hydroponically
Storage root count, fresh and dry weights, and linear growth rate of sweetpotatoes grown by use of the nutrient film technique declined linearly in response to decreased BCS, while fresh anddry foliage weight decreased linearly and quadratically as spacing was reduced within the growth channels. Expand
Sweet Potato Growth Parameters, Yield Components and Nutritive value for CELSS Applications
Sweet potatoes have been grown hydroponically using the nutrient film technique (NFT) to provide a potential food source for long-term manned space missions. Experiments in both sand and NFTExpand
Leaf injury to bean plants grown in carbon dioxide enriched atmospheres
Bush bean (Phaseolus vulgaris L.) plants grown in atmospheres enriched with CO2 showed marked reductions in photosynthetic capacity and accelerated chlorosis of primary leaves, but the degree of injury was regulated by secondary factors, light and temperature. Expand
Solid matrix and liquid culture procedures for growth of potatoes.
  • T. Tibbitts, W. Cao
  • Chemistry, Medicine
  • Advances in space research : the official journal of the Committee on Space Research
  • 1994
There are serious limitations to the use of NFT alone for growth of potatoes in a CELSS system, and these can be minimized by using a modified NFT with a shallow layer of media, such as arcillite, yet additional work is needed to ensure high tuber production with this system under long photoperiods. Expand