TY - JOUR
T1 - Effects of temperature and photoperiod on assimilate partitioning in potato plants
AU - Wolf, S.
AU - Marani, A.
AU - Rudich, J.
PY - 1990/11
Y1 - 1990/11
N2 - The effects of temperature and photoperiod on d. wt partitioning and 14C translocation were studied in three potato varieties. High temperatures and long days enhanced plant growth in terms of plant height and number of leaves, and also affected d. wt partitioning between the plant organs. However, no temperature effect was noted on total plant d. wt, nor on the export of 14C from the source leaf. Translocation of 14C to the vegetative organs (leaves and stems) was greater at higher temperatures, while translocation to the tubers was less under these conditions. We suggest that, under the temperature regimes studied, the main effect of high temperature is on assimilate partitioning and not on total plant productivity. Differences in response to high temperatures were observed among varieties, with Norchip showing the least and Up-to-Date showing the most sensitivity.
AB - The effects of temperature and photoperiod on d. wt partitioning and 14C translocation were studied in three potato varieties. High temperatures and long days enhanced plant growth in terms of plant height and number of leaves, and also affected d. wt partitioning between the plant organs. However, no temperature effect was noted on total plant d. wt, nor on the export of 14C from the source leaf. Translocation of 14C to the vegetative organs (leaves and stems) was greater at higher temperatures, while translocation to the tubers was less under these conditions. We suggest that, under the temperature regimes studied, the main effect of high temperature is on assimilate partitioning and not on total plant productivity. Differences in response to high temperatures were observed among varieties, with Norchip showing the least and Up-to-Date showing the most sensitivity.
KW - 14C-translocation
KW - High temperature
KW - Partitioning of assimilates
KW - Potato
KW - Solanum tuberosum var. Desirèe
KW - Solanum tuberosum var. Norchip
KW - Solanum tuberosum var. Up-to-Date
UR - http://www.scopus.com/inward/record.url?scp=0000958505&partnerID=8YFLogxK
U2 - 10.1093/oxfordjournals.aob.a088060
DO - 10.1093/oxfordjournals.aob.a088060
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AN - SCOPUS:0000958505
SN - 0305-7364
VL - 66
SP - 513
EP - 520
JO - Annals of Botany
JF - Annals of Botany
IS - 5
ER -