Claim · model-written summary
Calcium deficiency had no such effect on photosynthesis per unit leaf area.
- Taxon
- Chrysanthemum coronarium var. spatiosum
Glebionis coronariat0 - Treatment
- Calcium deficiencye7
- Outcome
- photosynthesis per unit leaf areae7
- Direction
- no_changeinferrede7
Not reportedComparator
Verbatim
t0“Chrysanthemum coronarium var. spatiosum”
e7“Calcium deficiency seems to give no such effect on photosynthesis per unit leaf area, but brings about a considerable decrease of photosynthesis per unit dry weight”
Title
Yasuhiko TEZUKA Shokubutsugaku Zasshi 1959. doi:10.15281/jplantres1887.72.101
Other claims from this paper (8)
- Intervention effect Phosphorus deficiency increased chlorophyll content in leaves, causing dark greening.
- Intervention effect Calcium deficiency caused necrosis of apical buds.
- Intervention effect Calcium deficiency retarded the development of each leaf.
- Intervention effect Phosphorus deficiency markedly reduced photosynthetic activity per unit leaf area.
- Intervention effect Phosphorus deficiency decreased respiratory activity of each organ.
- Intervention effect Calcium deficiency considerably decreased photosynthesis per unit dry weight.
- Mechanism The decrease in growth caused by phosphorus deficiency is explained by dry matter production.
- Observation Phosphate and calcium ion effects on plant growth depend on the whole amount available to the plant rather than on concentration.