Phenology, flowering and fruit-set performance of six recent pear cultivars of Nordic origin

Autor: A. Sønsteby, O. M. Heide, R. Rivero, F. Måge, S. F. Remberg
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Acta Agriculturae Scandinavica. Section B, Soil and Plant Science, Vol 69, Iss 7, Pp 578-587 (2019)
Druh dokumentu: article
ISSN: 0906-4710
1651-1913
09064710
DOI: 10.1080/09064710.2019.1620322
Popis: Flowering performance and phenology of six new pear cultivars of Nordic origin were examined during a 12 year period. The seasonal timing of shoot growth and flower initiation were monitored in three years. The morphological floral stages of the flower bud formation process were examined for the cultivar ‘Celina’. Seven floral stages were identified and described. The date of full bloom varied between years as a function of the currently accumulated heat sum in early spring. Still, the earliness ranking of the cultivars was consistent across years for both flower initiation and blooming. The cultivars ‘Anna’ and ‘Ingeborg’ consistently initiated floral primordia 2–3 weeks earlier than ‘Celina’, ‘Clara Frijs’, ‘Fritjof’ and ‘Kristina’, and this was accompanied with 4–5 days earlier blooming in the following spring. The early flower initiation cultivars ‘Anna’ and ‘Ingeborg’ also had richer flowering than the late-blooming cultivars. ‘Fritjof’ was identified as a suitable pollinator for ‘Celina’ in the Nordic climate. Comparison of the flowering phenology of pear and apple cultivars showed that while the pears, on average, flowered a week ahead of the apples, they initiated flower primordia almost two weeks later, thus rendering the intervening period approximately three weeks longer in pear than in apple.
Databáze: Directory of Open Access Journals
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje