Details

Autor(en) / Beteiligte

• Li, Dong-Mei
• Tan, Qiu-Ping
• Gao, Dong-Sheng
• Chen, Xiu-De
• Li, Ling

Titel

Effects of photoperiod on photosynthesis and PSII performance in peach during dormancy induction

Ist Teil von

• Ying yong sheng tai xue bao, 2014-07, Vol.25 (7), p.1933-1939

Ort / Verlag

China

Erscheinungsjahr

2014

Quelle

Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals

Beschreibungen/Notizen

• Long-day and short-day photoperiods were set artificially, with natural condition as the control, to examine photosynthetic parameters and chlorophyll fluorescence transient kinetics of 6-year-old 'Chunjie' peach cultivar (Prunus persica cv. Chunjie), and to investigate the effects of photoperiod on photosynthesis of the northern deciduous fruit trees. The tree advanced into the dormancy induction period under the short-day condition, and delayed under the long-day condition. In the dormancy induction period, the leaf net photosynthetic rate (Pn) and stomatal conductance (g(s)) decreased, and the intercellular CO2 concentration (Ci) increased, suggesting that the Pn decreased because of non-stomatal limitation. Maximum quantum yield for primary photochemistry (PhiPo, or Fv/Fm), potential activity (Fv/Fo), probability that a trapped exciton moved an electron into the electron transport chain beyond Q(A)-(Psi(o)) and performance index on absorption basis (Pl(ABS)) decreased in the dormancy induction period, sug