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Title: Studies on the storage life of irradiated potatoes of different maturities as influenced by different levels of nitrogen during growth and different harvest dates

Abstract

Studies were conducted to determine the effects of irradiation levels on potato tubers of different maturities grown with 0.0, 182 and 364 kg/ha nitrogen in 16-16-16 NPK fertilizer, harvested on different dates and stored at 10 and 15.5{degree}C. Tubers from the 1986 crop were harvested on September 15, 1986. Tubers from the 1987 crop were harvested when 0-5%, 50%, and 100% of the vines had died. Gamma irradiation was applied to the tubers of the 1986 crop at dosage 0, 5, 10 and 20 krad; and 0 and 7.5 krad for the tubers of 1987 crop. The 1986 study indicated that increasing fertilizer and irradiation levels significantly decreased sprouting, percent weight loss and specific gravity of tubers. The loss of ascorbic acid, histidine, leucine, isoleucine, and the amount of reducing, and non-reducing sugars were significantly decreased by increasing nitrogen levels. The content of leucine, reducing sugars and ascorbic acid levels were decreased by irradiation. Higher storage temperatures caused greater loss of arginine, isoleucine, valine and ascorbic acid. No significant changes were found in protein, lysine and aromatic amino acids. Tubers stored at 15.5{degree}C showed greater metabolic changes as indicated by sprouting, weight loss; changes in permeability, protein, amino acids, sugarsmore » and ascorbic acid contents. The 5 krad irradiation treatment resulted in complete sprout inhibition of tubers from 364 kg/ha nitrogen levels at 10{degree}C storage. Twenty krad dosage while inhibiting sprouting at 15.5{degree}C, caused greater loss of ascorbic acid. The results of 1987 studies showed that tubers from higher nitrogen levels irradiated with 7.5 krad significantly decreased weight loss.« less

Authors:
Publication Date:
Research Org.:
Washington State Univ., Pullman, WA (United States)
OSTI Identifier:
5602651
Resource Type:
Miscellaneous
Resource Relation:
Other Information: Thesis (Ph. D.)
Country of Publication:
United States
Language:
English
Subject:
60 APPLIED LIFE SCIENCES; NITROGEN; RADIOSENSITIVITY EFFECTS; POTATOES; STORAGE LIFE; AGE DEPENDENCE; AMINO ACIDS; ASCORBIC ACID; BIOLOGICAL RADIATION EFFECTS; GAMMA RADIATION; HARVESTING; PLANT GROWTH; SPROUT INHIBITION; BIOLOGICAL EFFECTS; CARBOXYLIC ACIDS; ELECTROMAGNETIC RADIATION; ELEMENTS; FOOD; GROWTH; INHIBITION; IONIZING RADIATIONS; NONMETALS; ORGANIC ACIDS; ORGANIC COMPOUNDS; PLANTS; RADIATION EFFECTS; RADIATIONS; TUBERS; VEGETABLES; VITAMINS; 553004* - Agriculture & Food Technology- Food Protection & Preservation- (1987-)

Citation Formats

Badshah, N L. Studies on the storage life of irradiated potatoes of different maturities as influenced by different levels of nitrogen during growth and different harvest dates. United States: N. p., 1989. Web.
Badshah, N L. Studies on the storage life of irradiated potatoes of different maturities as influenced by different levels of nitrogen during growth and different harvest dates. United States.
Badshah, N L. Sun . "Studies on the storage life of irradiated potatoes of different maturities as influenced by different levels of nitrogen during growth and different harvest dates". United States.
@article{osti_5602651,
title = {Studies on the storage life of irradiated potatoes of different maturities as influenced by different levels of nitrogen during growth and different harvest dates},
author = {Badshah, N L},
abstractNote = {Studies were conducted to determine the effects of irradiation levels on potato tubers of different maturities grown with 0.0, 182 and 364 kg/ha nitrogen in 16-16-16 NPK fertilizer, harvested on different dates and stored at 10 and 15.5{degree}C. Tubers from the 1986 crop were harvested on September 15, 1986. Tubers from the 1987 crop were harvested when 0-5%, 50%, and 100% of the vines had died. Gamma irradiation was applied to the tubers of the 1986 crop at dosage 0, 5, 10 and 20 krad; and 0 and 7.5 krad for the tubers of 1987 crop. The 1986 study indicated that increasing fertilizer and irradiation levels significantly decreased sprouting, percent weight loss and specific gravity of tubers. The loss of ascorbic acid, histidine, leucine, isoleucine, and the amount of reducing, and non-reducing sugars were significantly decreased by increasing nitrogen levels. The content of leucine, reducing sugars and ascorbic acid levels were decreased by irradiation. Higher storage temperatures caused greater loss of arginine, isoleucine, valine and ascorbic acid. No significant changes were found in protein, lysine and aromatic amino acids. Tubers stored at 15.5{degree}C showed greater metabolic changes as indicated by sprouting, weight loss; changes in permeability, protein, amino acids, sugars and ascorbic acid contents. The 5 krad irradiation treatment resulted in complete sprout inhibition of tubers from 364 kg/ha nitrogen levels at 10{degree}C storage. Twenty krad dosage while inhibiting sprouting at 15.5{degree}C, caused greater loss of ascorbic acid. The results of 1987 studies showed that tubers from higher nitrogen levels irradiated with 7.5 krad significantly decreased weight loss.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {1}
}

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