The effect of some environmental factors on potato tuber numbers

SummaryFive experiments studied the effects of shading, temperature and stolon growth medium on stolon and tuber formation. The lowest numbers of stolons and tubers were produced at the higher and lower nodes. Numbers of primary stolons and tubers were relatively stable across nodes and treatments a...

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Bibliographic Details
Published in:Potato research 1997-01, Vol.40 (3), p.297-306
Main Authors: Wurr, D.C.E. (Horticulture Research International, Wellesbourne, Warwick (United Kingdom).), Hole, C.C, Fellows, J.R, Milling, J, Lynn, J.R, O'Brien, P.J
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Biological and medical sciences
CRECIMIENTO
CROISSANCE
Crop science
Economic plant physiology
Environmental conditions
Environmental factors
ESTOLON
Fundamental and applied biological sciences. Psychology
GROWTH
Growth and development
Hydroponics
Morphogenesis, differentiation, rhizogenesis, tuberization. Senescence
Nodes
OMBRAGE
Plant populations
Potatoes
SHADING
SOLANUM TUBEROSUM
STOLON
STOLONS
TEMPERATURA
TEMPERATURE
TUBERCULE
TUBERCULO
TUBERS
UMBRIA
Vermiculite
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Summary:SummaryFive experiments studied the effects of shading, temperature and stolon growth medium on stolon and tuber formation. The lowest numbers of stolons and tubers were produced at the higher and lower nodes. Numbers of primary stolons and tubers were relatively stable across nodes and treatments and variation in total numbers was largely due to changes in numbers of lateral and branch stolons. In the field, 70% shading reduced numbers of stolons and tubers by reducing lateral and branch stolons, while in hydroponics, 45% shading and temperatures at initiation had no effect on tuber numbers. In both environments later planting tended to reduce numbers of stolons and tubers. There were large effects of the physical environment, with compost producing three times as many tubers as dry vermiculite. The potential number of tubers may be determined by the number of stolons and the environmental conditions affecting stolon formation and development.
ISSN:0014-3065
1871-4528
DOI:10.1007/bf02358011