In:
PLOS ONE, Public Library of Science (PLoS), Vol. 17, No. 5 ( 2022-5-5), p. e0267989-
Abstract:
The addition of supplemental light (SL) is an effective way to offset insufficient lighting. Although it is commonly believed that SL increases leaf photosynthesis and therefore improves yield and fruit flavor, the mechanism underlying the effects of SL on the photosystem II (PSII) apparatus remains unclear, and SL leads to high energy consumption. In order to save energy, we investigated the physiological status of the PSII apparatus, plant growth parameters and fruit parameters under two types of overhead SL with a low daily energy consumption of 0.0918 kWh m -2 . The results showed that SL significantly increased the leaf chlorophyll content from full unfolding to yellowing. However, a remarkable increase in the absorption flux per cross-section (ABS/CS), the quantum yield of electron transport (φ Eo ) and the performance index (PI abs ) was observed only in a relatively short period of the leaf life cycle. SL also enhanced the fruit yield and quality. The obviously increased ΔV K and ΔV J components of the chlorophyll fluorescence induction kinetic (OJIP) curve, along with the significantly decreased PI abs from days 40–60 after unfolding in the SL-treated groups, resulted in more rapid leaf aging and earlier fruit ripening compared with the control plants (CK). Therefore, an energy-friendly SL strategy can alter the physiological status of the PSII apparatus, affecting yield and fruit quality and maturity.
Type of Medium:
Online Resource
ISSN:
1932-6203
DOI:
10.1371/journal.pone.0267989
DOI:
10.1371/journal.pone.0267989.g001
DOI:
10.1371/journal.pone.0267989.g002
DOI:
10.1371/journal.pone.0267989.g003
DOI:
10.1371/journal.pone.0267989.g004
DOI:
10.1371/journal.pone.0267989.g005
DOI:
10.1371/journal.pone.0267989.g006
DOI:
10.1371/journal.pone.0267989.t001
DOI:
10.1371/journal.pone.0267989.t002
DOI:
10.1371/journal.pone.0267989.t003
DOI:
10.1371/journal.pone.0267989.t004
DOI:
10.1371/journal.pone.0267989.t005
DOI:
10.1371/journal.pone.0267989.s001
Language:
English
Publisher:
Public Library of Science (PLoS)
Publication Date:
2022
detail.hit.zdb_id:
2267670-3
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