Productivity of Some Blueberry Cultivars Under Latvia Conditions

Šterne, D.; Liepniece, M.; Abolins, M.

doi:10.17660/actahortic.2012.926.26

Cited by 2 publications

(3 citation statements)

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“…The time of fruit ripening (BBCH 81-87) fluctuated from 147.3 to 222.3 Julian days; the longest fruit ripening period was observed in the 'Elliott' variety at 44 days. A longer duration, 56-66 days, was found by Sterne and Liepniece [24] between the phenophase beginning of fruit ripening and full ripeness in 'Jersey' and 'Bluecrop' cultivars. Based on the Shapiro-Wilk test, it can be seen that, in general, the distribution of data regarding the generative phenophases is normal with a few exceptions, namely the phenophase BBCH 67 (petal fall) in the 'Elliot' variety and BBCH 87 (75% blue) in the 'Duke' variety (Shapiro-Wilk p-value < 0.001).…”

Section: Resultsmentioning

confidence: 78%

“…The beginning of fruit ripening (BBCH 83) started on the 47th day after the beginning of flowering for the 'Duke' variety, and on the 69th day for the 'Elliott' variety. A duration of 41-51 days between the beginning of flowering and the beginning of fruit ripening was found by Sterne and Liepniece [24] in some highbush blueberry cultivars in Latvia. The time of fruit ripening (BBCH 81-87) fluctuated from 147.3 to 222.3 Julian days; the longest fruit ripening period was observed in the 'Elliott' variety at 44 days.…”

Section: Resultsmentioning

confidence: 83%

“…In the case of the study carried out, the earliest phenophases were recorded in the 'Hannah's Choice' variety, especially for the early phenophases (BBCH 51-81), so that the colouration of fruits started earlier in the 'Duke' variety (BBCH 83-87). The beginning of flowering is a very important parameter because of the possible damage to flowers by late spring frost [24], and the duration of phenological stages was influenced by the microclimate [25]. The beginning of flowering (BBCH 61) occurred at 103.6 Julian days for the 'Hannah's Choice' variety, and 123.6 Julian days for the 'Elliott' variety.…”

Section: Resultsmentioning

confidence: 99%

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The Influence of Variety and Climatic Year on the Phenology of Blueberry Grown in the Banat Area, Romania

2022

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This paper’s aim was to investigate the influence of variety and the climatic year on vegetation phenophases in blueberries grown in southwest Romania, the Banat region. This study was carried out during the growing season of 2020–2022 in a blueberry plantation, for ‘Duke’, ‘Hannah’s Choice’ and ‘Elliott’ varieties. In the study, phenological traits were recorded using the BBCH phenological scale and the observation of phenotypic data was recorded as in Julian days. Thus, it is found that the duration of each phenophase characterized each variety. The calendar periods for the onset of vegetation and the duration of spring phenological development stages in varieties have differed from year to year and depended on weather conditions. In the case of the phenological stage, depending on variety, the maximum amplitude was recorded for BBCH 87 stage (75% blue fruits) of 51 days, and the minimum amplitude, of 25 days, for BBCH 51 stage (bud swell) and BBCH 59 (late pink bud). The coefficient of variation, depending on climatic year, for generative phenophases, had values between 6.5% (BBCH 67-petal fall) and 21.1% (BBCH 51-bud swell). It was found that the variety and the climatic year influence the development of vegetation phenophases. The results indicate that blueberry cultivars have demonstrated a high degree of phenotypic plasticity to respond to gradual changes in environmental conditions and are important for the evaluation of cultivar cultivation prospects in the studied area.

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Section: Resultsmentioning

confidence: 78%

Section: Resultsmentioning

confidence: 83%