Effects of nitrogen fertilization and in-row seedpiece spacing on yield of three potato cultivars in Prince Edward Island

1999 ◽  
Vol 76 (4) ◽  
pp. 227-229 ◽  
Author(s):  
W. J. Arsenault ◽  
A. Malone
Keyword(s):  
Nitrogen Fertilization ◽  
Prince Edward Island ◽  
Potato Cultivars

scholarly journals A Rapid Technique for the Evaluation of Potato Germ Plasm for Susceptibility to Pink Rot

Plant Disease ◽  
2001 ◽  
Vol 85 (8) ◽  
pp. 833-837 ◽  
Author(s):  
R. D. Peters ◽  
A. V. Sturz
Keyword(s):  
Prince Edward Island ◽  
Germ Plasm ◽  
Potato Cultivars ◽  
Reliable Technique ◽  
Disease Symptoms ◽  
Disease Response ◽  
Pink Rot ◽  
Phytophthora Erythroseptica ◽  
Screening Protocol ◽  
Disease Free

Disease-free plantlets of 20 potato cultivars commonly grown in Prince Edward Island were inoculated with zoospore suspensions of Phytophthora erythroseptica, the causal agent of pink rot, to determine disease response. All inoculated cultivars developed disease symptoms relative to noninoculated controls, but disease severity differed significantly (P = 0.05) among cultivars. Plantlets of the cultivars Goldrush and Yukon Gold were consistently the most susceptible to the disease, whereas plantlets of cultivars Butte and Russet Burbank were the least susceptible. Most of the cultivars assessed were moderately susceptible to disease. Plantlets of potato cultivars with late-season field maturity were more resistant to disease than those with early or mid-season maturity. Isolates of P. erythroseptica from diverse regions of Prince Edward Island and Maine did not differ significantly (P = 0.05) in pathogenicity. The screening protocol described was a reliable technique to determine the relative resistance of nontuber potato germ plasm to disease, resulting from infection with P. erythroseptica.

RESPONSE OF FOUR POTATO CULTIVARS TO METRIBUZIN TIME AND RATE OF APPLICATION

1979 ◽  
Vol 59 (2) ◽  
pp. 417-422 ◽  
Author(s):  
J. A. IVANY
Keyword(s):  
Adverse Effect ◽  
Solanum Tuberosum ◽  
Irish Cobbler ◽  
Prince Edward Island ◽  
Solanum Tuberosum L ◽  
Potato Cultivars

Over a 4-yr period (1974–1977) the effect of metribuzin at three rates and times of application was evaluated on four potato (Solanum tuberosum L.) cultivars commonly grown on Prince Edward Island. Metribuzin applied preemergence and early postemergence had no adverse effect on marketable and total yields of Irish Cobbler, Netted Gem, Kennebec, and Sebago cultivars. Delaying metribuzin application until late postemergence resulted in significantly reduced marketable yields of Irish Cobbler and Sebago but not Netted Gem and Kennebec when compared with preemergence and early postemergence treatment. Total yields with late postemergence treatment were significantly less than those with the preemergence treatment for all four cultivars and significantly less than early postemergence treatment with Irish Cobbler and Sebago.

Nitrogen fertilization and irrigation affects tuber characteristics of two potato cultivars

2002 ◽  
Vol 79 (4) ◽  
pp. 269-279 ◽  
Author(s):  
G. Bélanger ◽  
J. R. Walsh ◽  
J. E. Richards ◽  
P. H. Milburn ◽  
N. Ziadi
Keyword(s):  
Nitrogen Fertilization ◽  
Potato Cultivars

EFFECTS OF APPLIED NITROGEN ON YIELDS, TUBER SIZES, AND SPECIFIC GRAVITIES OF TWO POTATO CULTIVARS

1977 ◽  
Vol 57 (3) ◽  
pp. 803-810 ◽  
Author(s):  
D. C. MUNRO ◽  
R. P. WHITE ◽  
J. B. SANDERSON
Keyword(s):  
Solanum Tuberosum ◽  
Specific Gravity ◽  
Prince Edward Island ◽  
Solanum Tuberosum L ◽  
Potato Cultivars ◽  
N Application ◽  
Significant Yield ◽  
Yield Responses ◽  
Tuber Specific Gravity ◽  
Applied Nitrogen

Potatoes (Solanum tuberosum L. cv. Sebago and Netted Gem) were grown at several locations on Prince Edward Island over a 5-yr period with rates of applied N from zero to 336 kg/ha. Significant yield responses to applied N occurred at all locations each year with each cultivar. At most locations, 112–134 kg N/ha was adequate for maximum yields. The response of the two cultivars to applied N was similar. Applied N up to 134 kg/ha increased the percentage yields of A-size tubers. Tuber specific gravity was affected by N application at only 8 of the 15 locations. Generally, excessive rates of applied N reduced specific gravity but rates sufficient for maximum yields were not deterimental.

Yield and Quality Response of Two Potato Cultivars to Nitrogen Fertilization

2018 ◽  
Vol 61 (2) ◽  
pp. 97-114 ◽  
Author(s):  
Alexandra Maltas ◽  
Brice Dupuis ◽  
Sokrat Sinaj
Keyword(s):  
Nitrogen Fertilization ◽  
Potato Cultivars ◽  
Yield And Quality ◽  
Quality Response

scholarly journals Economic Optimum Nitrogen Fertilization Rates and Nitrogen Fertilization Rate Effects on Tuber Characteristics of Potato Cultivars

2010 ◽  
Vol 53 (3) ◽  
pp. 167-179 ◽  
Author(s):  
Paulo C. R. Fontes ◽  
Heder Braun ◽  
Camilo Busato ◽  
Paulo R. Cecon
Keyword(s):  
Nitrogen Fertilization ◽  
Fertilization Rate ◽  
Potato Cultivars ◽  
Fertilization Rates ◽  
Rate Effects

Effects of Nitrogen Fertilization on the Leaf Chemical Composition of Two Potato Cultivars under Controlled Conditions

2020 ◽  
Vol 97 (2) ◽  
pp. 175-184
Author(s):  
Guoqi Wen ◽  
Athyna N. Cambouris ◽  
Noura Ziadi ◽  
Annick Bertrand ◽  
Mohamed Khelifi
Keyword(s):  
Chemical Composition ◽  
Nitrogen Fertilization ◽  
Potato Cultivars ◽  
Controlled Conditions
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