Interaction of environment conditions and genotypes on expression of genetic background in micro-phenophases of strawberry mixed flower bud
Journal
Genetika
Date Issued
2013
Author(s)
Kratovalieva, Suzana
Nikolic, Katerina
DOI
10.2298/gensr1301181s
Abstract
<jats:p>The aim of this research is differentiation or micro-phenophases of
reproductive organs on two junebearing strawberry (Fragaria x anannassa)
varieties senga sengana and pocahontas, depending on climate conditions,
rosettes ordering and cultivate manner (orchard mulched on black foil and
orchard on bare soil). The beginning of differentiation of flower buds is
genetic characteristic depending on climate conditions (insulations, day
length, higher midday and night air temperatures from 1.05 till the beginning
of differentiation, the sum of rainfalls from the beginning of May until the
end of July), order of rosettes and cultivate manner The sum of effective
temperatures over 10?C from 1st of May till the beginning of differentiation
has no influence on beginning of flower buds differentiation. First
morphological changes of the apical meristem were started in the first decade
of August that has coincided with the day length of 14 hours and day
insulations of 9.3 hours. Micro-phenophases were undergoing almost at the
same time in both varieties, only the beginning at pocahontas was 2-3 days
earlier. Primary rosettes differ 10-15 days earlier than the secondary
rosettes. Plants that grown on black foil had 7-10 days earlier flower bud
differentiation compared to those grown on bare soil.</jats:p>
reproductive organs on two junebearing strawberry (Fragaria x anannassa)
varieties senga sengana and pocahontas, depending on climate conditions,
rosettes ordering and cultivate manner (orchard mulched on black foil and
orchard on bare soil). The beginning of differentiation of flower buds is
genetic characteristic depending on climate conditions (insulations, day
length, higher midday and night air temperatures from 1.05 till the beginning
of differentiation, the sum of rainfalls from the beginning of May until the
end of July), order of rosettes and cultivate manner The sum of effective
temperatures over 10?C from 1st of May till the beginning of differentiation
has no influence on beginning of flower buds differentiation. First
morphological changes of the apical meristem were started in the first decade
of August that has coincided with the day length of 14 hours and day
insulations of 9.3 hours. Micro-phenophases were undergoing almost at the
same time in both varieties, only the beginning at pocahontas was 2-3 days
earlier. Primary rosettes differ 10-15 days earlier than the secondary
rosettes. Plants that grown on black foil had 7-10 days earlier flower bud
differentiation compared to those grown on bare soil.</jats:p>