Claim · model-written summary
Low radiant flux greatly increased chlorophyll and beta-carotene contents in Cymbidium.
- Taxon
- Cymbidium Sazanamit0
- Treatment
- low radiant fluxe0
- Outcome
- chlorophyll and β-carotene contentse0
- Direction
- increasede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Verbatim
e0“at the low radiant flux, both chlorophyll and β-carotene contents increased greatly”
t0“Cymbidium Sazanami”
Title
Jincai Li; Xiheng Zhao; Shuichiro Matsui Journal of the Japanese Society for Horticultural Science 2001. doi:10.2503/jjshs.70.372
Other claims from this paper (17)
- Observation Antioxidative enzyme activities were greater in Cattleya than Cymbidium.
- Observation In Cattleya, enzyme activities rose slightly during daytime.
- Observation In Cymbidium, enzyme activities rose at the start of night.
- Intervention effect Full sunlight reduced SOD activity in Cattleya leaves.
- Intervention effect Full sunlight greatly enhanced CAT activity in Cattleya leaves.
- Intervention effect Full sunlight slightly promoted APX activity in Cattleya leaves.
- Intervention effect Full sunlight decreased SOD and CAT activities in Cymbidium leaves.
- Intervention effect Full sunlight slightly decreased APX activity in Cymbidium leaves.
- Intervention effect High radiant flux significantly decreased SOD and CAT activities in Cattleya leaves relative to control after one month.
- Observation Cattleya CAT activity recovered slightly during further cultivation.
- Intervention effect High radiant flux decreased SOD, APX and CAT activities in Cymbidium leaves over three months.
- Intervention effect Low radiant flux increased and sustained APX and CAT activities in Cattleya and Cymbidium leaves.
- Association Foliar chlorophyll contents declined as radiant flux increased in both orchid hybrids.
- Association Foliar chlorophyll contents were positively correlated with the three enzyme activities.
- Intervention effect High radiant flux initially lowered the chlorophyll a to b ratio and beta-carotene content in Cattleya, which recovered by three months.
- Intervention effect High radiant flux slightly decreased chlorophyll a to b ratio and beta-carotene content in Cymbidium leaves.
- Observation Cattleya was interpreted as better adapted to high radiant flux than Cymbidium.