Open AccessDetermination of Phenological Properties and Effective Heat Summation Requirements of Some Apples Varieties in Ankara (Kalecik) Conditions
Author(s) -
Hülya Ünver
Publication year - 2017
Publication title -
türk tarım - gıda bilim ve teknoloji dergisi
Language(s) - English
Resource type - Journals
ISSN - 2148-127X
DOI - 10.24925/turjaf.v5i12.1633-1639.1500
Subject(s) - phenology , horticulture , mathematics , chilling requirement , bloom , botany , biology , toxicology , environmental science , ecology , dormancy , germination
In this study, the phenological characteristics of some apple varieties grown in the Kalecik district of Ankara province, the number of days between effective heat summation requirements, and phenological phases were determined. The research was conducted on Royal Gala, Granny Smith, Jersey Mac, Spur Golden and Red Chief apple varieties. The threshold temperature of +10°C was accepted as the temperature value for the determination of the heat summation requirements of the varieties. The effective heat summation above +10°C during the growing season of varieties was determined as 819.1-1986.3°C days in 2015 and 865.1-2031.2°C days in 2016. The number of days from full bloom to harvest was 85-75 days in 2015 and 132-219 days in 2016.