Abstract
The effect of irregular in-row spacing on tuber production and yield of Russet Burbank potatoes was tested at 2 locations in 1979 and 1980. At a similar mean spacing, no yield reductions were observed when irregular seedpiece spacings (CV levels 25, 50 and 75%) were compared with evenly spaced seedpieces (CV level of 0%). No significant interaction was found between irregular spacing and seedtypes with mass ranging from 59.0 to 67.9 g.
No significant interaction was found between three accurate spacings (30.4, 45.7 and 60.9 cm) and the same range of seedpiece mass; however, the crop grown from large seedpieces had a higher marketable yield at the widest spacing tested.
Mainstem numbers per plant were influenced by seedpiece mass while axillary branches increased with decreases in intra-plant and inter-plant competition.
The incidence of hollow heart was generally unaffected by irregular inrow spacing. Incidence of this disorder was highest in 1979 and appeared to increase with increased plant stresses.
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Contribution No. 638, Department of Plant Science, University of Manitoba, Winnipeg, Manitoba, R3T 2N2.
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Entz, M.H., LaCroix, L.J. The effect of in-row spacing and seedtype on the yield and quality of a potato cultivar. American Potato Journal 61, 93–105 (1984). https://doi.org/10.1007/BF02852882
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DOI: https://doi.org/10.1007/BF02852882