Niska: A maincrop chipping potato cultivar with high specific gravity and good quality after storage

1991 ◽  
Vol 68 (3) ◽  
pp. 143-149 ◽  
Author(s):  
D. R. Lynch ◽  
D. Kichefski ◽  
S. Peloquin ◽  
C. S. Schaupmeyer ◽  
L. la Croix ◽  
...  

2011 ◽  
Vol 89 (2) ◽  
pp. 89-101 ◽  
Author(s):  
R. G. Novy ◽  
J. L. Whitworth ◽  
J. C. Stark ◽  
B. A. Charlton ◽  
S. Yilma ◽  
...  


1989 ◽  
Vol 66 (5) ◽  
pp. 303-313 ◽  
Author(s):  
R. Coffin ◽  
R. Chase ◽  
N. Thompson ◽  
G. Johnston ◽  
A. McKeown ◽  
...  


Author(s):  
Masahiro Ito ◽  
Yuitch Iwagaki ◽  
Hiroshi Murakami ◽  
Kenji Nemoto ◽  
Masato Yamamoto ◽  
...  


1848 ◽  
Vol 138 ◽  
pp. 55-62 ◽  

On the 1st of November 1845 I received from Dr. Watson the following note, with a test tube containing a thick, yellow, semi-solid substance:—“The tube contains urine of very high specific gravity; when boiled it becomes highly opake; on the addition of nitric acid it effervesces, assumes a reddish hue, becomes quite clear, but, as it cools, assumes the consistence and appearance which you see: heat reliquifies it. What is it ?” A few hours afterwards a specimen of the same urine, passed by a grocer forty-seven years of age, who had been out of health for thirteen months, was sent to me by Dr. MacIntyre. He being in attendance on the case with Dr. Watson, had two days previously first observed the peculiar reactions of the urine.



HortScience ◽  
2017 ◽  
Vol 52 (2) ◽  
pp. 230-235
Author(s):  
Fernanda Souza Krupek ◽  
Christian T. Christensen ◽  
Charles E. Barrett ◽  
Lincoln Zotarelli

The cost of seed accounts for nearly 10% of the estimated production cost of chipping potato (Solanum tuberosum) production in Florida. Optimizing seed piece spacing can reduce costs without affecting potato yield. This study evaluated the effects of seed piece spacing on yield, quality, and economic revenue of chipping potato production in north Florida. A field experiment was conduct during the spring of 2013, 2014, and 2016 in Hastings, FL, with a split-plot randomized complete block design. In-row seed piece spacings of 10, 15, 20 (industry standard), 25, and 30 cm were assigned as the main plot and S. tuberosum potato cultivars (Atlantic, Harley Blackwell, and Elkton) as the subplots. Marketable tuber yield ranged between 10.8 and 15.2 Mg·ha−1 in 2013, 10.1 and 12.8 Mg·ha−1 in 2014, and 9.9 and 19.7 Mg·ha−1 in 2016. Overall lower yields in 2013 were due to three freeze events early in the season. Widening seed piece spacing resulted in a linear decrease in total and marketable yield in 2013 and 2014. Conversely, seed piece spacings of 10 and 15 cm showed lower marketable yields in 2016. There was no interaction between in-row spacing and cultivar in any year tested. Cultivars performed variably across years for total and marketable yield and specific gravity. Tuber specific gravity was unaffected by seed piece spacing, except in 2013, when 25 and 30 cm resulted in slightly higher values. There was no significant difference in total and marketable yield between the industry standard seed piece spacing 20 and 25 cm in any year. In-row spacing of 25 cm in 2013 and 30 cm seed piece spacing in 2014 and 2016 provided the greatest economic return. Net revenue can be increased by adjusting the in-row seed piece spacing from the commercial standard of 20 to 25 cm, which reduces production cost without negatively impacting yields.



2007 ◽  
Vol 84 (6) ◽  
pp. 477-486 ◽  
Author(s):  
Asunta L. Thompson ◽  
Bryce L. Farnsworth ◽  
Gary A. Secor ◽  
Neil C. Gudmestad ◽  
Duane Preston ◽  
...  


2008 ◽  
Vol 2008 (1) ◽  
pp. 93-96 ◽  
Author(s):  
Hugh Parker ◽  
Tosh Moller

ABSTRACT Following the technical triumph of removing most of the oil from the sunken wreck of the PRESTIGE, interest and expectations have been raised in equal measure. Since 2005 there have been a number of incidents worldwide involving sunken wrecks containing oil, as well as a smaller number of pollution cases in which oil spilled from ships has sunk due to its high specific gravity. The response to such incidents poses unique challenges and reference is made to ITOPF'S database of historical spills in order to demonstrate how attitudes and the policies for dealing with these cases have changed. The problems posed by oil in wrecks or on the seabed straddle the disciplines of ship salvage and conventional spill clean-up. Whilst the technology used in recovering such oil differs, the rationale for determining whether or not certain measures have merit is in large part based on an assessment of what is technically reasonable. These principles are reflected in the development of the IOPC Funds’ technical guidelines for the removal of oil from sunken wrecks. This paper explores the evolution of response policy with reference to key shipping incidents involving sunken wrecks and sunken oil. In the course of this review, the conflicts between public expectations and technical limitations are highlighted.







1899 ◽  
Vol 64 (402-411) ◽  
pp. 374-377

Some years ago I described the occurrence of a peculiar sandstone over a large area in Bramcote and Stapleford, near Nottingham. The sandstone was remarkable for its high specific gravity, and chemical analysis, supported by microscopical examination, proved that the high specific gravity was due to the existence in the sandstone of a large proportion of highly crystalline barium sulphate.



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