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Absorption and mobility of radio-labelled calcium in chili pepper plants and sweet cherry trees
- Source :
- Scientia Agricola, ISSN 1678-992X, 2021-01, Vol. 78, No. 6, Scientia Agricola v.78 n.6 2021, Scientia Agrícola, Universidade de São Paulo (USP), instacron:USP, Scientia Agricola, Vol 78, Iss 6 (2020), Archivo Digital UPM, Universidad Politécnica de Madrid
- Publication Year :
- 2021
- Publisher :
- E.T.S.I. Montes, Forestal y del Medio Natural (UPM), 2021.
-
Abstract
- Calcium (Ca) is often supplied to crop species to prevent the occurrence of Ca–related disorders. Mechanisms of Ca absorption and transport are not fully understood and the effectiveness of root and/or foliar Ca fertilization may be variable. To characterize the rate of Ca absorption and transport, trials were developed with chili pepper and sweet cherry plants, using 45CaCl2 as a tracer. The Ca treatments supplied were: (1) No 45Ca (control); (2) 45Ca soil application; (3) 45Ca supply to basal leaves, and (4) 45Ca application to apical leaves. After two months, plants were harvested for biomass and Ca content determination. The recovery of 45Ca in different plant parts was measured with a liquid scintillation counter and leaf traits were observed by scanning electronic microscopy. In general, the highest 45Ca concentrations were recovered in treated organs, while root applications led to highest 45Ca translocation rates, which varied between chili pepper and cherry plants. For chili pepper, 45Ca applied to the soil was detected mainly in roots (44 %) followed by leaves (36.6 %) stems (17.4 %) and fruits (2 %). In sweet cherry trees, soil–applied 45Ca was principally recovered in roots (45.3 %), shoots (28.5 %), leaves (14.3 %) and trunks (11.9 %). The results provide evidence of increased absorption of root–applied Ca, as well as different degrees of Ca mobility between species. Foliar application led to major Ca increases in treated leaves, with Ca transported to other plant organs after apical leaf Ca supply chiefly in cherry trees.
- Subjects :
- 0106 biological sciences
Absorption (pharmacology)
fertilizers
Chili pepper
Agriculture (General)
chemistry.chemical_element
Biomass
plant nutrition
Calcium
01 natural sciences
S1-972
Human fertilization
horticultural crops
2. Zero hunger
radioisotopes
fungi
Botánica
food and beverages
04 agricultural and veterinary sciences
Horticulture
chemistry
Shoot
040103 agronomy & agriculture
0401 agriculture, forestry, and fisheries
fertilizer application methods
Plant nutrition
010606 plant biology & botany
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Scientia Agricola, ISSN 1678-992X, 2021-01, Vol. 78, No. 6, Scientia Agricola v.78 n.6 2021, Scientia Agrícola, Universidade de São Paulo (USP), instacron:USP, Scientia Agricola, Vol 78, Iss 6 (2020), Archivo Digital UPM, Universidad Politécnica de Madrid
- Accession number :
- edsair.doi.dedup.....c923a0a46e095bfe501f07edf58c34ca