Claim · model-written summary
Exposure of tomato to 17 hours or more of light results in a marked decrease in photosynthetic ability.
- Taxon
- tomato
Solanum lycopersicume4 - Treatment
- 17 hours or moree4
- Outcome
- photosynthetic abilitye4
- Direction
- marked decreasee4
Verbatim
e4“Injury is evident in the tomato in exposures of 17 hours or more, resulting in marked decrease in photosynthetic ability”
Title
Microchemical and Morphological Studies of Effect of Light on Plants
Norma E. Pfeiffer Botanical Gazette 1926. doi:10.1086/333584
Other claims from this paper (18)
- Intervention effect Short light exposures give low carbohydrate and low protein reserves compared with longer intervals in plants.
- Intervention effect Short light exposures give less total growth than longer intervals in plants.
- Intervention effect Short light exposures give less production of differentiated tissues than longer intervals in plants.
- Association Longer light duration is associated with an increase in carbohydrate reserves in plants.
- Association Longer light duration is associated with use of carbohydrate for protein elaboration and tissue production that is not proportionately increased in plants.
- Observation Nitrates were present in great amounts in tomato plants except the control and gantry crane house specimens.
- Association Nitrates were low in buckwheat under 17, 19 and 24-hour light exposures.
- Association Nitrates were usually lowest in the gantry crane house with extra carbon dioxide.
- Association Maximum development of the plant occurs in 12-hour light exposure in tomato.
- Association Maximum development of the plant occurs in 17-hour light exposure in buckwheat.
- Association Injury is evident in tomato exposed to 17 hours or more of light.
- Association Continuous light tends to produce thinner leaves in plants.
- Association Continuous light tends to give a palisade layer that is shorter or lacking in plants.
- Association The effect of gantry crane house conditions on leaf thickness is variable.
- Association Thinner leaves usually show an increase in stomata number, except in continuous light at the intensity used.
- Observation Root development in fibrous root systems is roughly comparable with that of the aerial parts of plants.
- Association In four o'clock storage roots, maximum development occurs under continuous light in the gantry crane houses.
- Association Maximum stem height of four o'clock occurs in the 17-hour plant.
Avena sativa
Zea mays subsp. mays
Sorghum
Triticum aestivum
Glycine max