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Comparative Patterns of Dry Matter Production in Bushy and Spreading Sweet Potato Cultivars

Published online by Cambridge University Press:  03 October 2008

J. R. Pardales Jr  and
D. V. Belmonte Jr
J. R. Pardales Jr
Affiliation:
Philippine Root Crop Research and Training Centre, Visayas State College of Agriculture, Baybay, Leyte 6521-A, Philippines
D. V. Belmonte Jr
Affiliation:
Philippine Root Crop Research and Training Centre, Visayas State College of Agriculture, Baybay, Leyte 6521-A, Philippines
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Summary

Dry matter production in a bushy and spreading cultivar of sweet potato was studied in two trials comparing dry matter partitioning between plant components. The bushy cultivar, VSP-2, accumulated more tuber dry matter than the spreading cultivar, BNAS-51. The number and yield of tubers of VSP-2, was also greater but its foliage dry weight was less than that of BNAS-51. The vine and root dry weight of BNAS-51 increased with time but that of VSP-2 reached a peak about 10–12 weeks after planting. The tuber dry weight of BNAS-51 at harvest was similar to its foliage dry weight but that of VSP-2 was three times greater. The proportion of total dry matter partitioned to the tubers of VSP-2 was greater than that in BNAS-51 at all stages of growth.

Type
Research Article
Information
Experimental Agriculture , Volume 25 , Issue 2 , April 1989 , pp. 243 - 247
Copyright
Copyright © Cambridge University Press 1989

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References

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