Effects of different hormone applications on phenological and pomological properties in some Raspberry (Rubus idaeus L.) species
Abstract
The purpose of this study conducted in a raspberry garden in Karaagac central
village of Usak province in 2017 and 2018 was to analyze the effects of
phenological and pomological properties of different hormone applications on
Heritage and Tulameen raspberry species in the ecology of Usak province. Our
experiment was established as 3 replications with 10 plants in each
replication. Hormones were applied as Giberallic acid (GA), Melatonin (Mel) and
GA+Mel with 2 different doses (5 ppm and 10 ppm) and 2.5 ppm melatonin and 2.5
ppm GA mixture for GA+Mel
5 ppm and 5 ppm melatonin and 5 ppm GA mixture for GA+Mel 10 ppm twice before
blooming and fruit set.
When
we analyze both species, we can see that blooming happens between 17th May
and 18th June and the harvest is between 21st June
and 12th September. In pomological measures, it was found that
in both species fruit length was between 8.89 and 13.13 mm, fruit width was
9.76 and 13.68 mm and fruit weight was between 0.64 and 1.29 g. While pH is between 3.62
and 4.80 and SSC is between 9.27% and 13.82%, TEA is between 21.62% and 30.56%.
While Total Phenolic content (ppm/GAE) is between 3.91 and 5.33, Total
Flavonoid content (ppm/QE) is between 0.75 and 1.42 and Antioxidant activity
(IC50) is between 43.66 and 175.66, vitamin C (ppm) is between 1009 and 2308.50
values. According to the results we
obtained in our study, Mel 10 ppm application in Tulameen cultivar in terms of
pomological measurements and Heritage varieties in terms of chemical results
and hormone applications in 5 ppm dose can be suggested in general terms.
Keywords
Supporting Institution
This study was supported by Uşak University Scientific Research Projects Coordination Unit (UBAP)
Project Number
2017/ TP033 project
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