Zn and K influence in fruit sizes of Valencia orange
| Autor: | Gloria Cristina Martínez, Víctor Antonio Rodríguez, Abel René Ferrero, Silvia Matilde Mazza |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: |
Rough lemon
Plant Science Orange (colour) Biology Valencia orange food.food Valencia orange productivity chemistry.chemical_compound Horticulture food Human fertilization chemistry Zineb fertilization Tukey's range test Rootstock Agronomy and Crop Science Citrus × sinensis Food Science Citrus sinensis |
| Zdroj: | Revista Brasileira de Fruticultura v.27 n.1 2005 Revista brasileira de fruticultura Sociedade Brasileira de Fruticultura (SBF) instacron:SBFRU |
| Popis: | In orange commercial farms, Zn deficiencies symptoms and small fruits were observed in Corrientes, Argentine. During four years (1995 to 1998), Valencia orange (Citrus sinensis Osb.) on Rough lemon (C. jambhiri Lush.) rootstock, implanted in 1974 in sandy soil, where six treatments were tested. Treatments varied from 1 to 3 Kg KCl.tree-1.year-1 (applied in April and December) with and without Zineb 80, 0,35%. year-1, 20 L. tree-1 (13,3 g Zn.tree-1 applied in December). The experimental design was a randomized complete block with four replications, with a single tree and borders in the experimental plot. Foliar sample were taken every year in Autumn and Summer, foliar concentrations of Zn and K were determined by atomic spectrum absorption. Harvested fruits were classified into small, medium and big. Analysis of Variance, Tukey test and Pearson correlations between production and foliar concentrations were performed. Higher fertilization levels of K with Zn increased medium and big fruits production (Kg and percentage). Foliar concentrations of K and Zn were positively correlated with big and medium fruit production and negatively correlated with small one. Chemical names used: Ethilenbis-ditiocarbamate of Zn (Zineb). |
| Databáze: | OpenAIRE |
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