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The dormancy of seed potatoes part 2 the effect of storage temperature


Potato Research 21(4): 267-276
The dormancy of seed potatoes part 2 the effect of storage temperature
Seed potatoes harvested immature or mature were stored under various temperature treatments and the time to the start of sprout growth recorded. Immature tubers sprouted before mature tubers. A period of storage at 4.degree. C compared with ambient temperature resulted in earlier sprouting. The response of low temperature storage decreased the later the tubers were placed in sprouting conditions and was greater with mature than immature tubers and with sprouting at 15.degree. C compared with 20.degree. C. There was little difference in the time to the start of sprout growth with immature tubers sprouted at 15.degree. C or 20.degree. C but with mature tubers there was an advantage in favor of the higher temperature. Immature seed is preferable to mature seed for very early planting. If mature seed is used the results suggest that it should be stored at 4.degree. C for up to 1 mo. after harvesting and then sprouted at 20.degree. C.


Accession: 006632820



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