Claim · model-written summary
Reduction of Ca deficiency symptoms with increasing Ca levels was obtained only in the greenhouse.
- Taxon
- tobacco
Nicotiana tabacume0 - Treatment
- increasing levels of Cae2
- Outcome
- symptom expressione2
- Direction
- reductione2
- Setting
- greenhousee2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tobacco ( Nicotiana tabacum L.) develop abnormalities of the buds and upper leaves”
e2“reduction of symptom expression with increasing levels of Ca was obtained only in the greenhouse”
Title
Influence of Variety and Soil Applications of Ca on Development of Ca Deficiency in Tobacco1
G. F. Peedin; C. B. McCants Agronomy Journal 1977. doi:10.2134/agronj1977.00021962006900010019x
Other claims from this paper (10)
- Association Ca deficiency symptoms were more pronounced on C-254 than on NC 2326 in both greenhouse and field.
- Intervention effect Maximum dry weight of C-254 was obtained with 150 ppm Ca.
- Intervention effect The 75 ppm Ca treatment was sufficient for maximum growth of NC 2326.
- Observation Conclusive evidence of varietal differences in Ca absorption was not obtained.
- Association Ca concentrations in apical tissues of C-254 were substantially lower than in NC 2326.
- Association Failure of C-254 to maintain adequate apical Ca may be associated with its greater accumulation of dry weight and absorbed Ca in leaf than in stalk.
- Association In field experiments, Ca deficiency symptom development was not related to exchangeable soil Ca level.
- Association In field experiments, Ca deficiency symptom development was not influenced by the rates of CaSO or dolomitic limestone.
- Association Ca deficiency symptom development was less pronounced where plants suffered prolonged moisture stress during vegetative growth.
- Association Ca deficiency is more likely to develop on immature plants that undergo rapid growth.