Morphophysiological peculiarities of productivity formation in columnar apple varieties
Laen...
Kuupäev
2022
Kättesaadav alates
Autorid
Havryliuk, O.
Kondratenko, T.
Mazur, B.
Kutovenko, V.
Mazurenko, B.
Voitsekhivska, O.
Dmytrenko, Y.
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Estonian University of Life Sciences
Abstrakt
Differentiation of generative buds is one of the most important biological processes of
plant transition from vegetative to generative state. This process is key to the problem of creating
regular fruit-bearing and early-fruiting plantations. The article provides information on the
organogenesis of buds in plants of columnar apple varieties in the Forest-Steppe of Ukraine,
which allows establishing the features of this process in complex fruit formations of different
ages, and the levels of their productivity and longevity. Research to study the organogenesis of
different-age fruit formations of columnar apple varieties was conducted in the northern part of
the Forest-Steppe of Ukraine during 2016–2020. The efficiency of realization the plants biological
potential of all studied columnar apple varieties at III–IV and V–IX stages of organogenesis was
high: the largest number of buds from their total number differentiated into generative on trees
varieties ‘Sparta’, ‘President’, ‘Bilosnizhka’, ‘Valuta’ and ‘Tantsivnytsia’ (37–51%), the smallest
in ‘Favoryt’ and ‘Bolero’. The biggest number of flowers per one potentially generative bud was
formed by plants of ‘Tantsivnytsia’ and ‘Bilosnizhka’ varieties. The lowest level of ovarian loss
during the X stage of organogenesis was observed on plants of ‘Valuta’, ‘President’, and
‘Tantsivnytsia’ varieties (41–49%), and the highest - in ‘Favoryt’ variety (up to 83%). More
effective realization of potential productivity at the XI stage of organogenesis occurred in plants
of ‘President’, ‘Valuta’ and ‘Tantsivnytsia’ varieties; their trees on one potentially generative bud
formed - 0.27–0.38 fruits. The coefficient of determination indicates that the influence of
meteorological conditions of the year on the passage of III–IV stages of organogenesis is 46%;
V–IX stages - 42%; Stage X - 17%; Stage XI - 24%.
Kirjeldus
Received: December 30th, 2021 ; Accepted: February 22nd, 2022 ; Published: March 4th, 2022 ; Correspondence: o.havryliuk@nubip.edu.ua
Märksõnad
columnar apple, productivity, organogenesis, differentiation of generative buds, fruit formations, articles