Effect of farming systems on the yield, quality parameters and sensory properties of conventionally and organically grown potato (Solanum tuberosum L.) tubers

2014 ◽  
Vol 145 ◽  
pp. 903-909 ◽  
Author(s):  
V. Brazinskiene ◽  
R. Asakaviciute ◽  
A. Miezeliene ◽  
G. Alencikiene ◽  
L. Ivanauskas ◽  
...  
2014 ◽  
Vol 156 ◽  
pp. 1-11 ◽  
Author(s):  
Berit Tein ◽  
Karin Kauer ◽  
Viacheslav Eremeev ◽  
Anne Luik ◽  
Are Selge ◽  
...  

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 768
Author(s):  
Trevor W. Crosby ◽  
Yi Wang

Irrigation is required for profitable commercial potato (Solanum tuberosum L.) production. Excessive or deficit soil water availability during the growing season can have adverse effects on tuber yield, quality, and storability. A field study was conducted during the 2018 and 2019 field and storage seasons in Central Wisconsin, a region in the U.S. with a high volume of potato production, to evaluate the impacts of different irrigation rates on three chipping potato varieties, Hodag, Lamoka, and Snowden. The treatments were implemented during the late-tuber bulking and tuber maturation growth stages, and consisted of irrigation at 125%, 100%, 75%, and 50% of crop evapotranspiration (ET). Irrigation before the treatment period was at 100%ET for all plots. With the industry standard irrigation practice being at 100%ET, other treatments were designated as over-irrigation or deficit irrigation. The impact of these watering rates on tuber yield and quality was evaluated at harvest, and tuber storage quality was assessed by measuring chip fry color and sugar concentrations at 0, 4, and 8 months of storage. It was found that compared to the standard practice, the over-irrigation treatment at 125%ET when tubers reached late bulking resulted in no significant increase in total yield, marketable yield, tuber quality at harvest and during storage, as well as reduced irrigation efficiency (IE) and water-use efficiency (WUE). This treatment also increased nitrate leaching potential in both years. In comparison, deficit irrigation at 75%ET or even 50%ET during the late season had no impact on tuber growth, could increase IE and WUE in one of the two years, and showed reduced drainage. In both years, irrigation rate had no significant effects on hollow heart incidence, tuber specific gravity at harvest, and fry quality during the 8-month storage period. This study suggested that over-irrigation was not beneficial for potato production in Central Wisconsin of the U.S., and deficit irrigation during late tuber bulking and tuber maturation stages could potentially result in more sustainable water use while not penalizing tuber yield, quality and storability of chipping potatoes.


1997 ◽  
Vol 77 (3) ◽  
pp. 461-467 ◽  
Author(s):  
M. K. Pritchard ◽  
M. G. Scanlon

Processing quality parameters within different sections of potato (Solanum tuberosum L.) tubers grown in Manitoba were measured to determine variability within tubers and to determine if whole tuber quality could be predicted from a specific section. The section that provided the best prediction of overall tuber quality parameters was determined. Changes in specific gravity (SG) and sugars in the outside and the inside of tubers during several months of storage were also measured. Dry matter (DM) of potato cvs. Russet Burbank and Shepody was generally higher at the apical and stem ends than in the middle section and was significantly higher in the outside than in the inside of the tuber. Sucrose concentration generally decreased from the stem end to the apical end of the tuber in Russet Burbank but increased from the stem end to the apical end in Shepody. Sucrose, glucose, and fructose were generally greater, though not always significantly, in the inside of the tuber compared with the outside with the exception of sucrose in Shepody where it was somewhat higher in the outside section. Glucose and fructose generally decreased from stem end to apical end although the difference between the two ends was significant only in Shepody. There was more variability in DM and the three sugars within Shepody tubers than those of Russet Burbank. The outer section of the tuber at the centre of the longitudinal axis (CO) was, overall, most highly correlated to the DM (r2 > 0.91) of the entire tuber for both cultivars and would be the most appropriate single location for estimating the DM of the entire tuber. Sugar concentrations of whole tubers could not consistently be estimated from that of any particular tuber location although the CO section had the highest correlations overall. During 6 mo storage SG did not change while sucrose decreased and glucose and fructose generally increased in both the outside (CO) and inside (CI) of the tuber. Linear regressions relating DM, SG, and sugars of the CO section to the whole tuber, and relating DM to SG were developed. Key words: Solanum tuberosum L., specific gravity, storage, processing, product quality


2013 ◽  
Vol 17 ◽  
pp. 126-137
Author(s):  
V. V. Boroday ◽  
T. V. Danilkova ◽  
V. A. Koltunov

Application of microbial preparation Planrhiz and fungicide Rydomil Gold MC 68 WG have improved yield, marketability of potatoes and have increased the standard part of tubers. Plants bakterization have promoted increase of potatoes marketability by reducing the number of small, mechanically damaged and sick tubers, with the crop yield higher than the control in 1,5–1,9 times while the number of sick tubers have decreased in 2,4–5,5 times. The combination of microbial agents (Planrhiz + Diazofit + Phosphoenteryn) compared to single application of Planrhiz have revealed no significant difference between the yield and product marketability. As for the planting terms – the 1st planting term in the third decade of April have showed to be the best in West Polissya due to the formation of bigger number of standard part of the tubers.


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