Shade Effect on Phenology, Fruit Yield, and Phenolic Content of Two Wild Blueberry Species in Northwestern Ontario, Canada
We studied the effect of shade on the phenology, growth, berry yield, and chemical content of two common blueberry species (<i>Vaccinium myrtilloides</i> and <i>V. angustifolium</i>) in Northwestern Ontario. We hypothesized that high shade would delay vegetative and reproduct...
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MDPI AG
2023-12-01
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Online Access: | https://www.mdpi.com/2223-7747/12/24/4099 |
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author | Viktoriya Dyukaryeva Azim U. Mallik |
author_facet | Viktoriya Dyukaryeva Azim U. Mallik |
author_sort | Viktoriya Dyukaryeva |
collection | DOAJ |
description | We studied the effect of shade on the phenology, growth, berry yield, and chemical content of two common blueberry species (<i>Vaccinium myrtilloides</i> and <i>V. angustifolium</i>) in Northwestern Ontario. We hypothesized that high shade would delay vegetative and reproductive phenology and decrease berry yield by increasing resource allocation to vegetative vs. reproductive growth, whereas moderate shade would increase berry phenolic content and antioxidant capacity. We subjected transplanted blueberry plants to a controlled shade treatment and evaluated plant phenological events, vegetative and reproductive growth, berry phenolics, and antioxidant capacity. High shade caused an earlier leaf maturation in <i>V. myrtilloides,</i> delayed flowering in <i>V. angustifolium</i>, and prolonged fruit maturation in both. The berry yield of both species decreased with increasing shade. High shade reduced the berry phenolic content and antioxidant capacity, especially in <i>V. myrtilloides</i>. We concluded that shade shifts species-specific vegetative and reproductive phenology, leading to a difference in resource acquisition, resulting in lower berry yield and antioxidant activity. |
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spelling | doaj.art-6afccc3e05054de8bdd0c4514e1264762023-12-29T15:47:21ZengMDPI AGPlants2223-77472023-12-011224409910.3390/plants12244099Shade Effect on Phenology, Fruit Yield, and Phenolic Content of Two Wild Blueberry Species in Northwestern Ontario, CanadaViktoriya Dyukaryeva0Azim U. Mallik1Department of Biology, Lakehead University, Thunder Bay, ON P7B 5E1, CanadaDepartment of Biology, Lakehead University, Thunder Bay, ON P7B 5E1, CanadaWe studied the effect of shade on the phenology, growth, berry yield, and chemical content of two common blueberry species (<i>Vaccinium myrtilloides</i> and <i>V. angustifolium</i>) in Northwestern Ontario. We hypothesized that high shade would delay vegetative and reproductive phenology and decrease berry yield by increasing resource allocation to vegetative vs. reproductive growth, whereas moderate shade would increase berry phenolic content and antioxidant capacity. We subjected transplanted blueberry plants to a controlled shade treatment and evaluated plant phenological events, vegetative and reproductive growth, berry phenolics, and antioxidant capacity. High shade caused an earlier leaf maturation in <i>V. myrtilloides,</i> delayed flowering in <i>V. angustifolium</i>, and prolonged fruit maturation in both. The berry yield of both species decreased with increasing shade. High shade reduced the berry phenolic content and antioxidant capacity, especially in <i>V. myrtilloides</i>. We concluded that shade shifts species-specific vegetative and reproductive phenology, leading to a difference in resource acquisition, resulting in lower berry yield and antioxidant activity.https://www.mdpi.com/2223-7747/12/24/4099blueberryphenologyreproductive responsevegetative growthlight intensityblack shading net |
spellingShingle | Viktoriya Dyukaryeva Azim U. Mallik Shade Effect on Phenology, Fruit Yield, and Phenolic Content of Two Wild Blueberry Species in Northwestern Ontario, Canada Plants blueberry phenology reproductive response vegetative growth light intensity black shading net |
title | Shade Effect on Phenology, Fruit Yield, and Phenolic Content of Two Wild Blueberry Species in Northwestern Ontario, Canada |
title_full | Shade Effect on Phenology, Fruit Yield, and Phenolic Content of Two Wild Blueberry Species in Northwestern Ontario, Canada |
title_fullStr | Shade Effect on Phenology, Fruit Yield, and Phenolic Content of Two Wild Blueberry Species in Northwestern Ontario, Canada |
title_full_unstemmed | Shade Effect on Phenology, Fruit Yield, and Phenolic Content of Two Wild Blueberry Species in Northwestern Ontario, Canada |
title_short | Shade Effect on Phenology, Fruit Yield, and Phenolic Content of Two Wild Blueberry Species in Northwestern Ontario, Canada |
title_sort | shade effect on phenology fruit yield and phenolic content of two wild blueberry species in northwestern ontario canada |
topic | blueberry phenology reproductive response vegetative growth light intensity black shading net |
url | https://www.mdpi.com/2223-7747/12/24/4099 |
work_keys_str_mv | AT viktoriyadyukaryeva shadeeffectonphenologyfruityieldandphenoliccontentoftwowildblueberryspeciesinnorthwesternontariocanada AT azimumallik shadeeffectonphenologyfruityieldandphenoliccontentoftwowildblueberryspeciesinnorthwesternontariocanada |