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Ammonium excess leads to Ca restrictions, morphological changes, and nutritional imbalances in tomato plants, which can be monitored by the N/Ca ratio
- Source :
- Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice), Empresa Brasileira de Pesquisa Agropecuária (Embrapa), instacron:EMBRAPA, Agronomy, Volume 11, Issue 7, Agronomy, Vol 11, Iss 1437, p 1437 (2021)
- Publication Year :
- 2021
-
Abstract
- Both nitrogen and calcium fertilization management are vital for crops, where an imbalance of these elements can cause both physiological and yield problems. It has been proposed that nitrogen absorption, particularly ammonium, is in part dependent on calcium supply. Moreover, the balance between these two nutrients could be a key indicator of plant growth in some species. Tomato, one of the most cultivated crops worldwide, can also be widely affected by nutritional imbalance. Using large amounts of N fertilizers could lead to an imbalance with other nutrients and, thus, detrimental effects in terms of plant development and yield. Here we show that ammonium excess has a negative impact on plant development and results in calcium deficiency. Moreover, a deficit in calcium nutrition not only affects calcium concentration but also leads to a restriction in N uptake and reduced N concentration in the plant. These effects were evident at the seedling stage and also during flowering/fruit set. Using PCA analysis, we integrated both phenotypic and nutritional imbalances in seedlings and grown plants. Interestingly, the Ca/N ratio appears to be a key indicator to monitor appropriate N and calcium nutrition and more importantly the balance between both. Maintaining this balance could be an essential element for tomato crop production. Made available in DSpace on 2021-07-21T16:01:58Z (GMT). No. of bitstreams: 1 Ammonium-Excess-Leads-to-Ca-Restrictions-2021.pdf: 1980106 bytes, checksum: c6f77a850c31e9c1f3389cce0b48c0b7 (MD5) Previous issue date: 2021
- Subjects :
- 0106 biological sciences
Nitrogen absorption
chemistry.chemical_element
Nutrição
Calcium
tomato
01 natural sciences
chemistry.chemical_compound
Human fertilization
Nutrient
Tomate
Tomatoes
Desenvolvimento de plantas
Ammonium
Nitrato de Amônio
calcium
biology
Adubação
fungi
food and beverages
Agriculture
04 agricultural and veterinary sciences
biology.organism_classification
Nitrogen
ammonium
Plant development
nutrition
chemistry
Agronomy
Seedling
Nutrição Vegetal
040103 agronomy & agriculture
0401 agriculture, forestry, and fisheries
plant development
Agronomy and Crop Science
010606 plant biology & botany
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice), Empresa Brasileira de Pesquisa Agropecuária (Embrapa), instacron:EMBRAPA, Agronomy, Volume 11, Issue 7, Agronomy, Vol 11, Iss 1437, p 1437 (2021)
- Accession number :
- edsair.doi.dedup.....de240dc335fbf3f7fa55f3e6b49b21d9