COPPER AND ZINC NUTRITION OF RUSSET BURBANK POTATOES GROWN ON PRINCE EDWARD ISLAND

1990 ◽  
Vol 70 (1) ◽  
pp. 357-362 ◽  
Author(s):  
J. B. SANDERSON ◽  
UMESH C. GUPTA
Keyword(s):  
Solanum Tuberosum ◽  
Specific Gravity ◽  
Prince Edward Island ◽  
Field Experiments ◽  
Tuber Yield ◽  
Solanum Tuberosum L ◽  
Leaf Tissue ◽  
Zn Content ◽  
Zinc Nutrition ◽  
Toxic Concentrations

Field experiments were conducted on potatoes (Solanum tuberosum L.) at two locations in P.E.I. to determine the response to soil- and foliar-applied Cu and Zn on tuber yield and leaf tissue nutrient concentration over a period of 3 yr. Foliar applications of 0.5–2 kg Cu ha−1 applied 1–2 wk prebloom reduced total tuber yield, number of tubers over 55 mm in diameter, average tuber weight, and specific gravity. The mean potato yield of tubers over 55 mm from the foliar-applied Cu treatments was less than the soil applied Cu by 4.5, 0.74, and 7.5 t ha−1 for 1985, 1986, and 1987, respectively. The toxic concentrations of Cu in potato leaves ranged from 63 to 139 μg g−1. Soil-applied Cu increased tissue Cu in the first sampling but had no effect in the second sampling. Foliar applications of Zn at 1–2 kg ha−1 reduced total tuber yield, tuber yield and tuber count over 55 mm, and specific gravity. The toxic concentrations of Zn in potato leaves ranged from 97 to 224 μg g−1. For the first sampling, the leaf tissue Zn concentrations ranged from 21 to 30 μg g−1 for the control and 27 to 70 μg g−1 for soil-applied Zn treatment. There was no difference in the Zn concentration between these two treatments for the second sampling. Copper and Zn concentrations as low as 7 and 21 μg g−1, respectively, in potato leaves were not related to deficiency of these nutrients, based on tuber yields. Soil applications of Cu or Zn would appear preferable to foliar sprays, which may cause phytotoxicity, as a means of increasing plant Cu or Zn content where a deficiency is suspected.Key words: Solanum tuberosum L., tuber yield, leaf copper, leaf zinc, Podzolic soil, potato

Effects of nitrogen, phosphorus, and potassium on yield, specific gravity, crisp colour, and tuber chemical composition of potato (Solanum tuberosum L.) cv. Kennebec

1994 ◽  
Vol 34 (6) ◽  
pp. 813 ◽  
Author(s):  
NA Maier ◽  
AP Dahlenburg ◽  
CMJ Williams
Keyword(s):  
Chemical Composition ◽  
Specific Gravity ◽  
Field Experiments ◽  
Tuber Yield ◽  
Solanum Tuberosum L ◽  
Vascular Ring ◽  
Total Yield ◽  
First Order ◽  
Curvilinear Relationships ◽  
Main Effects

Five field experiments were conducted over 3 years in the Mt Lofty Ranges (4 sites) and the Upper South East (1 site) to examine the significance of main effects and interactions between nitrogen (N, up to 360 kg N/ha), phosphorus (P, up to 320 kg P/ha), and potassium (K, up to 480 kg K/ha) on total yield, yield of 80-350 g size grade, specific gravity, crisp colour, and chemical composition of tubers of potato cv. Kennebec. There were significant (P<0.05) main effects of increasing rates of applied N on total tuber yield and yield of 80-350 g tubers at 2 of the 5 experimental sites; the effect of applied P was significant at 3 sites, and applied K also at 3 sites. Application of N, P, and K increased total tuber yield by 13-432%, 19-145%, and 19-89%, respectively, at responsive sites. Increases in the yield of 80-350 g tubers were similar to those for total yield. There were significant first-order interactions (N x K, N x P, K x P) at 2 sites. The interactions were (i) response to the application of 1 nutrient limited by suboptimal rates of another; and (ii) yield depression, due to high rates of 1 or more nutrients. Nitrogen and P increased specific gravity at only 1 of the sites where they were applied. Potassium increased specific gravity at 1 site but decreased it at another. There were significant N x K, N x P, and K x P interactions at 2 sites. Vascular ring colour index (CI) and medulla CI were significantly (P<0.05) affected by rates of applied N, P, and K at 1, 3, and 4 experimental sites, respectively. Application of K (up to 480 kg K/ha) decreased vascular ring CI and medulla CI. Application of P increased the colour indices; for example, increasing the rate of P from nil to 160 kg/ha increased mean (� s.e.) vascular ring CI from 51 � 18 to 117 � 17. No interactions between N, P, and K in their effects on medulla CI were significant. For vascular ring CI, significant first-order interactions (K x N, K x P) were observed at 2 sites, at which application of N and P at nil K significantly increased vascular ring CI. At 240 or 480 kg K/ha, there was no change. Significant (P<0.001) curvilinear relationships were found between specific gravity and the concentrations of N, P, and K in the stem-end region of tubers; the coefficients of determination (r2) were 0.27, 0.62, and 0.76, respectively. For the combined medulla CI and vascular ring CI data, the corresponding values were 0.19 (P<0.001), 0.29 (P<0.001), and 0.05 (n.s.), respectively.

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.

scholarly journals Production potential of newly released potato (Solanum tuberosum L.) cultivars under different nitrogen levels

2016 ◽  
Vol 13 (2) ◽  
pp. 121-130 ◽  
Author(s):  
SK Das ◽  
H Banerjee ◽  
A Chakraborty ◽  
A Sarkar
Keyword(s):  
Solanum Tuberosum ◽  
Field Experiments ◽  
Tuber Yield ◽  
West Bengal ◽  
Solanum Tuberosum L ◽  
Block Design ◽  
The State ◽  
Recommended Dose ◽  
Nitrogen Levels ◽  
Positive Balance

Field experiments were conducted during rabi seasons of 2011-12, 2012-13, 2013-14 and 2014-15 at C-unit research farm of Bidhan Chandra Krishi Viswavidyalaya, Kalyani, Nadia, West Bengal, India to study the effects of different levels of nitrogen on the productivity of newly released potato (Solanum tuberosum L.) cultivars under lower Gangetic plains of West Bengal. The experiment was laid out in a factorial randomized block design with four replications having ten treatment combinations viz. two levels of newly released cultivars (V1 - Kufri Himalini and V2 - Kufri Shailja) as factor A and five levels of nitrogen (N0 -0 kg ha-1, N75 -75 kg ha-1, N150 -150 kg ha-1 N225-225 kg ha-1 N300 -300 kg ha-1) as factor B. Experimental results revealed that highest tuber yield (25.77 t ha-1) was recorded with Kufri Himalini receiving 300 kg N ha-1 followed by 24.64 t ha-1 and 23.64 t ha-1 with 225 kg N ha-1 and 150 kg N ha-1 respectively which is quite higher than the state average of 22.02 t ha-1 obtained from the state recommended dose of 200 kg N ha-1, 150 P2O5 ha-1 and150 K2O ha-1. Thus recently released variety Kufri Himalini, having moderate resistance against late blight, which is a serious problem in the state at present can be a better option for the farmers of the state to raise the potato production. Kufri Himalini produced significantly higher (14.1%) total tuber yield over Kufri Shailja and it was found to be more acceptable to the farmers in terms of production of marketable tuber (> 75 g grade). Grade wise tuber yield of potato was significantly influenced by N levels. Irrespective of cultivars application of 300 kg N ha-1 along with recommended dose of P and K recorded the highest total potato tuber yield (23.55 t ha-1) which was found statistically at par with the application of 225 kg N ha-1 and 150 kg N ha-1. Nitrogen fertilization improved the tuber yield of potato by 49.5 to 82.1% over control. Kufri Himalini was more responsive to fertilizer nitrogen than Kufri Shailja as it recorded higher agronomic efficiency (AEN), apparent recovery (REN) and physiological efficiency (PEN) at all nitrogen levels. There was a positive balance of nitrogen found in all treatments. Net gain of soil N was highest with ‘Kufri Himalini’ receiving 150 kg N ha-1. Kufri Himalini gave highest net return with 300 kg N ha-1.SAARC J. Agri., 13(2): 121-130 (2015)

scholarly journals Non-Parametric Stability Analysis of Tuber Yield in Potato (Solanum tuberosum L.) Genotypes

2018 ◽  
Vol 10 (28) ◽  
pp. 50-63
Author(s):  
mina moghaddaszadeh ◽  
Rasool Asghari Zakaria ◽  
Davoud Hassanpanah ◽  
naser zare ◽  
◽  
...  
Keyword(s):  
Solanum Tuberosum ◽  
Stability Analysis ◽  
Tuber Yield ◽  
Solanum Tuberosum L ◽  
Parametric Stability ◽  
Non Parametric

scholarly journals Effects of Time of Earthing Up on Yield and Yield Parameters of Irish Potato (Solanum Tuberosum L.) in Zaka District, Zimbabwe

2020 ◽  
Vol 1 (1) ◽  
pp. p39
Author(s):  
Nyasha Sakadzo ◽  
Fortune Tafirenyika ◽  
Kasirayi Makaza
Keyword(s):  
Solanum Tuberosum ◽  
Tuber Yield ◽  
Smallholder Farmers ◽  
Solanum Tuberosum L ◽  
Block Design ◽  
Tuber Quality ◽  
Marketable Tuber ◽  
Yield Parameters ◽  
Plant Emergence ◽  
Four Levels

Potato (Solanum tuberosum L) is a strategic national food security crop in that can be used as a supplement for carbohydrates. It is the fastest growing staple food crop and source of income for poor smallholder farmers. There is limited documentation on effects of earthing up irish potatoes on yield and yield components in Zimbabwe. A field experiment was conducted in Zaka district of Masvingo province in Zimbabwe during the 2018/19 cropping season. The aim of the study was to investigate the effect of time of earthing up on yield and yield parameters of BP1 potato variety. The treatments consisted of four levels of time of earthing up (no earthing up (control), three, four and five weeks after plant emergence), replicated three times on a Randomized Complete Block Design (RCBD). Results on earthing-up at three weeks recorded significantly (P<0.013) the highest total tuber yield (21.97 t ha-1) which is 10% higher compared to no earthing up which recorded 14.43 t ha-1. Moreover, earthing up at two weeks had the least number of greening tuber yield (3%), 11% pest damaged tuber yield, 6% unmarketable tuber yield and 45% marketable tuber yield. This is in contrast with no earthing up which recorded 91% greening tuber yield, 25.3% on pest damaged tubers, 59% on unmarketable tubers and 10% marketable tuber yield. Based on the results, first earthing up should be done at three weeks after complete plant emergence at the study area under rain fed conditions for the production of potatoes with improved yield and better tuber quality.

scholarly journals Effects of nitrogen on yield and chlorophyll of potato (Solanum tuberosum L.) cultivars

1970 ◽  
Vol 38 (2) ◽  
pp. 163-169 ◽  
Author(s):  
Semiha Güler
Keyword(s):  
Solanum Tuberosum ◽  
Tuber Yield ◽  
Solanum Tuberosum L ◽  
Total Yield ◽  
Correlation Coefficients ◽  
Tuber Number ◽  
Tuber Weight ◽  
Nitrogen Rate ◽  
Leaf Chlorophyll ◽  
Nitrogen Rates

Effects of nitrogen on the leaf chlorophyll (chl), yield and yield attributing characters of potato as tuber number and mean tuber weight were studied. Correlation coefficients between the investigated characters were determined. Five nitrogen rates (0, 150, 200, 250 and 300 kg/ha) and four potato cultivars (Burren, Slaney, Anna and Emma) were used in the study. First, second, third class tuber yields and total tuber yield, tuber number per plant, and leaf chl were significantly influenced by both nitrogen rate and cultivar, whereas mean tuber weight was affected only by cultivar. Maximum total yield was obtained at 200 kg N/ha. There was significant linear relationship between leaf chl and N applied (R2=0.91). There were significant correlations between chl and yield and yield related characters. Total yield significantly correlated with leaf chl. Correlations between first class yield and total yield as well as total yield and tuber number per plant were highly significant.   Key words: Potato; Solanum tuberosum L.; Leaf chlorophyll; Nitrogen; Yield DOI: 10.3329/bjb.v38i2.5141 Bangladesh J. Bot. 38(2): 163-169, 2009 (December)  

EFFECTS OF APPLIED AND RESIDUAL BORON ON THE NUTRITION OF CABBAGE AND FIELD BEANS

1984 ◽  
Vol 64 (4) ◽  
pp. 571-576 ◽  
Author(s):  
UMESH C. GUPTA ◽  
J. A. CUTCLIFFE
Keyword(s):  
Prince Edward Island ◽  
Field Experiments ◽  
Leaf Tissue ◽  
Water Soluble ◽  
Hot Water ◽  
Boron Toxicity ◽  
First Year ◽  
Application Rates ◽  
Seed Yields ◽  
Field Beans

Field experiments were conducted at four locations in Prince Edward Island to determine the effect of applied B on leaf tissue B and yields of beans (Phaseolus vulgaris L.) and cabbage (Brassica oleracea var. capitata L.) in the year of application of B and again the following year. Application rates of 8.8 kg B∙ha−1 reduced bean seed yields at all locations and the 4.4-kg B∙ha−1 rate reduced yields at two locations in the first year. Leaf tissue B levels > 109 μg∙g−1 are clearly toxic for beans and seriously reduced bean yields. Furthermore, the yield and visual symptom data strongly suggest that tissue B levels even as low as 60 μg∙g−1 are toxic for this crop. No significant reductions in bean yields were noted in the second year crop, even at the 8.8 kg B∙ha−1 rate. Rates of up to 8.8 kg B∙ha−1 did not cause any reduction in cabbage yield even during the year of application. Leaf tissue B concentrations as high as 71–132 μg∙g−1 were not related to any B toxicity in cabbge. Added B did not increase yield of either beans or cabbage. Even though leaf tissue B levels as low as 16 μg∙g−1 in cabbage and 26 μg∙g−1 in beans occurred, no B deficiency was found. After the first and second years of beans the hot-water-soluble B in the soil ranged from 1.4 to 1.9 and from 0.8 to 1.2 μg∙g−1, respectively, where B had been applied at 8.8 kg∙ha−1. Key words: Cabbage, beans, boron toxicity, tissue boron, yields

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