Effects of Silicon Amendment on Soilborne and Fruit Diseases of Avocado
The effects of silicon (Si) amendment have been studied in several plant/pathogen interactions; however, studies in horticultural tree crops are limited. Effects of amendment with soluble potassium silicate (AgSil®32, approximately 30% available Si), or milled cement building board by-products (Mine...
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-10-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/6/4/51 |
| _version_ | 1818959298744549376 |
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| author | Elizabeth K. Dann Duy P. Le |
| author_facet | Elizabeth K. Dann Duy P. Le |
| author_sort | Elizabeth K. Dann |
| collection | DOAJ |
| description | The effects of silicon (Si) amendment have been studied in several plant/pathogen interactions; however, studies in horticultural tree crops are limited. Effects of amendment with soluble potassium silicate (AgSil®32, approximately 30% available Si), or milled cement building board by-products (Mineral Mulch (MM) or Mineral Dust (MD), containing 5% available Si) were investigated in field and greenhouse trials with avocado. Orchard soil drench applications with potassium silicate improved yield and quality of fruit, but visual health of trees declining from Phytophthora root rot (PRR) was not affected. Orchard spray or trunk injection applications with potassium silicate were ineffective. Amendment of potting mix with MM and MD reduced root necrosis of avocado seedlings after inoculation with Calonectria ilicicola, an aggressive soilborne pathogen causing black root rot. Application of MM to mature orchard trees declining with PRR had a beneficial effect on visual tree health, and Si accumulation in leaves and fruit peel, after only 10 months. Products that deliver available Si consistently for uptake are likely to be most successful in perennial tree crops. |
| first_indexed | 2024-12-20T11:39:25Z |
| format | Article |
| id | doaj.art-9ce77ba0eeb942afb32c80d673a8468f |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-12-20T11:39:25Z |
| publishDate | 2017-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-9ce77ba0eeb942afb32c80d673a8468f2022-12-21T19:42:00ZengMDPI AGPlants2223-77472017-10-01645110.3390/plants6040051plants6040051Effects of Silicon Amendment on Soilborne and Fruit Diseases of AvocadoElizabeth K. Dann0Duy P. Le1Queensland Alliance for Agriculture and Food Innovation, University of Queensland, Brisbane, QLD 4072, AustraliaQueensland Alliance for Agriculture and Food Innovation, University of Queensland, Brisbane, QLD 4072, AustraliaThe effects of silicon (Si) amendment have been studied in several plant/pathogen interactions; however, studies in horticultural tree crops are limited. Effects of amendment with soluble potassium silicate (AgSil®32, approximately 30% available Si), or milled cement building board by-products (Mineral Mulch (MM) or Mineral Dust (MD), containing 5% available Si) were investigated in field and greenhouse trials with avocado. Orchard soil drench applications with potassium silicate improved yield and quality of fruit, but visual health of trees declining from Phytophthora root rot (PRR) was not affected. Orchard spray or trunk injection applications with potassium silicate were ineffective. Amendment of potting mix with MM and MD reduced root necrosis of avocado seedlings after inoculation with Calonectria ilicicola, an aggressive soilborne pathogen causing black root rot. Application of MM to mature orchard trees declining with PRR had a beneficial effect on visual tree health, and Si accumulation in leaves and fruit peel, after only 10 months. Products that deliver available Si consistently for uptake are likely to be most successful in perennial tree crops.https://www.mdpi.com/2223-7747/6/4/51Phytophthorapotassium silicateavailable siliconanthracnosestem end rot |
| spellingShingle | Elizabeth K. Dann Duy P. Le Effects of Silicon Amendment on Soilborne and Fruit Diseases of Avocado Plants Phytophthora potassium silicate available silicon anthracnose stem end rot |
| title | Effects of Silicon Amendment on Soilborne and Fruit Diseases of Avocado |
| title_full | Effects of Silicon Amendment on Soilborne and Fruit Diseases of Avocado |
| title_fullStr | Effects of Silicon Amendment on Soilborne and Fruit Diseases of Avocado |
| title_full_unstemmed | Effects of Silicon Amendment on Soilborne and Fruit Diseases of Avocado |
| title_short | Effects of Silicon Amendment on Soilborne and Fruit Diseases of Avocado |
| title_sort | effects of silicon amendment on soilborne and fruit diseases of avocado |
| topic | Phytophthora potassium silicate available silicon anthracnose stem end rot |
| url | https://www.mdpi.com/2223-7747/6/4/51 |
| work_keys_str_mv | AT elizabethkdann effectsofsiliconamendmentonsoilborneandfruitdiseasesofavocado AT duyple effectsofsiliconamendmentonsoilborneandfruitdiseasesofavocado |