Potassium deficiency and root exudates reduce root growth and increaseFusarium oxysporumgrowth and disease incidence in continuously cultivated strawberry
| Autor: | Lu-Sheng Zhang, Zeng-Qiang Cao, Gei-Lin Tian, Teng-Fei Fan, Yan-Meng Bi |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Exudate Rhizosphere biology Potassium food and beverages chemistry.chemical_element 04 agricultural and veterinary sciences Horticulture Fragaria biology.organism_classification 01 natural sciences Fusarium wilt Tissue culture chemistry Agronomy Fusarium oxysporum 040103 agronomy & agriculture medicine 0401 agriculture forestry and fisheries Potassium deficiency medicine.symptom Agronomy and Crop Science 010606 plant biology & botany |
| Zdroj: | New Zealand Journal of Crop and Horticultural Science. 44:58-68 |
| ISSN: | 1175-8783 0114-0671 |
| Popis: | Strawberry fruits are increasingly produced under continuous cultivation and K deficiency, but the response of strawberry to this combination of stresses has not been extensively studied. Pot and tissue culture grown strawberry (Fragaria ananassa Duch.) plants were used to determine the effect of strawberry root exudates on the growth of strawberry plants and Fusarium oxysporum under continuous cultivation and potassium (K) deficiency. The pot experimental results showed that the Fusarium wilt disease rating and index were very high (62% and 86, respectively), and the lateral roots of strawberry plants were significantly restricted under the continuous cultivation and K deficiency treatment. The growth of tissue culture plantlets was inhibited by a high concentration (4%) and promoted by a low concentration (1%) of root exudates from the replanted pot strawberries. The number of lateral roots of tissue culture plantlets was significantly lower in the 4% root exudate treatment. Growth of F. oxyspor... |
| Databáze: | OpenAIRE |
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