83. Sugar Content of Parsnip Root Tissues During Low Temperature Storage

Author(s):  
R.Y. Yada ◽  
V.I. Shatluck ◽  
Y. Kakuda
HortScience ◽  
1997 ◽  
Vol 32 (3) ◽  
pp. 517C-517
Author(s):  
Efstratia Papanikou ◽  
Paul H. Jennings

Previous research has shown that low-temperature storage can be used to maintain bedding plants in plug trays when weather conditions in spring make scheduling of transplanting difficult. The objective of this study was to determine what physiological changes occur during the short-term, low-temperature storage of plug seedlings. Plants of two bedding plant species, Geranium and Vinca, were stored at 2, 6, or 10°C and under low light or dark conditions for 4 weeks. Data were collected at three sampling dates (0, 2, or 4 weeks after beginning of storage) and included dry and fresh mass, total leaf area, leaf chlorophyll content and chlorophyll fluorescence as well as electrolyte leakage and soluble sugar content of leaf and root tissue. The parameters will be discussed in relationship to plug seedling survivability, quality, and growth responses under the experimental storage treatments.


1995 ◽  
pp. 265-276 ◽  
Author(s):  
K. Nomura ◽  
Y. Ogasawara ◽  
H. Uemukai ◽  
M. Yoshida

HortScience ◽  
1998 ◽  
Vol 33 (7) ◽  
pp. 1258-1261 ◽  
Author(s):  
Sandra B. Wilson ◽  
Keiko Iwabuchi ◽  
Nihal C. Rajapakse ◽  
Roy E. Young

Broccoli (Brassica oleracea L. Botrytis group `Green Duke') seeds were cultured photoautotrophically (without sugar) or photomixotrophically (with sugar) in vitro for 3 weeks at 23 °C and150 μmol·m-2·s-1 photosynthetic photon flux (PPF). In vitro seedlings were stored for 0, 4, 8, or 12 weeks at 5 °C in darkness or under 5 μmol·m-2·s-1 of white (400–800 nm), blue (400–500 nm), or red (600–700 nm) light. Photosynthetic ability and soluble sugar contents were determined after removal from storage. Photomixotrophic seedlings contained approximately five times more soluble sugars than did photoautotrophic seedlings. Dark storage reduced soluble sugars in both photoautotrophic and photomixotrophic plants, but photosynthetic ability was maintained for up to 8 weeks in the latter whereas it decreased in the former. Illumination in storage increased leaf soluble sgars in both photoautotrophic and photomixotrophic seedlings. Soluble sugars in stems decreased during storage regardless of illumination, but remained higher in illuminated seedlings. Red light was more effective in increasing or maintaining leaf and stem soluble sugars than was white or blue light. Regardless of media composition or illumination, storage for more tan 8 weeks resulted in dramatic losses in quality and recovery, as well as photosynthetic ability. Seedlings stored for 12 weeks comletely lost their photosynthetic ability regardless of media composition or illumination. The results suggest that carbohydrate, supplied in the media or through illumination, is essential for maintenance of photosynthetic ability during low-temperature storage for up to 4 or 8 weeks.


2015 ◽  
Vol 62 (1) ◽  
pp. 50-55
Author(s):  
Chie Matsuura-Endo ◽  
Koji Ishiguro ◽  
Shigenobu Takigawa ◽  
Takahiro Noda ◽  
Yasuhiro Hasa

2004 ◽  
Vol 117 (2) ◽  
pp. 131-137 ◽  
Author(s):  
Chie Matsuura-Endo ◽  
Akira Kobayashi ◽  
Takahiro Noda ◽  
Shigenobu Takigawa ◽  
Hiroaki Yamauchi ◽  
...  

Alloy Digest ◽  
1964 ◽  
Vol 13 (8) ◽  

Abstract USS 9% Nickel Steel was specifically developed for low-temperature storage vessels operating down to minus 320 F. It is recommended for cryogenic service. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. Filing Code: SA-166. Producer or source: United States Steel Corporation.


2006 ◽  
Vol 75 (3) ◽  
pp. 209-212 ◽  
Author(s):  
Kodthalu Seetharamaiah Shivashankara ◽  
Seiichiro Isobe ◽  
Hiroshi Horita ◽  
Makiko Takenaka ◽  
Takeo Shiina

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