ISSN:
1573-5060
Keywords:
Ipomoea batatas
;
sweet potato
;
source-sink relationship
;
yield
;
general and specific source potentials
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary Screening sweet potato, Ipomoea batatas, L., for source potentials is more difficult than for sink capacities. Twenty clones were grafted to four tester varieties to screen them for source potentials in relation to sink capacities which are interdependent. Source potential of a clone was measured by its average scion effect when grafted on the four tester varieties. There were significant differences in source potentials among the twenty clones. Seven clones were selected for having high source potentials. Clone TIS 2498 was the best. Degrees of response of source to sink were estimated using the regression method for twenty clones showed significant differences and ranged from b−0.45 to b=2.06. Source potential showed significant relationship (r=0.62**) with response of source to sink. Implication of this approach to sweet potato breeding is discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00028301
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