Horticultural Studies (HortiS)
2022, Vol 39, Num, 1 (Pages: 008-014)
Flowering and Non-Flowering Spur Leaf Characteristics of 'Amasya' Apple and Its Comparison with Other Cultivars
Ayşe Nilgün ATAY 1 ,Ersin ATAY 1
1 Burdur Mehmet Akif Ersoy University, Food Agriculture and Livestock School, Department of Crop and Livestock Production, Horticulture Program, 15030, Burdur, Turkey
DOI :
10.16882/HortiS.1067242
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Understanding the attributes of spur leaves in apple trees is essential to gain
more insight into the complex process of fruit development and quality.
However, limited literature is available about the spur leaf characteristics of
the 'Amasya' apple cultivar. In this work, the Soil Plant Analysis Development
(SPAD) and leaf area were investigated in flowering and non-flowering spur
leaves of 'Amasya' and six common apple cultivars. Significant differences
among cultivars were observed for the SPAD and spur leaf area. The median
SPAD readings in 'Amasya' were 32.63 and 26.23 for the flowering and nonflowering
spurs, respectively, which were the relatively low values among
studied cultivars. The maximum SPAD value was measured in flowering spurs
of 'Cripps Pink' (45.03). SPAD values were found to be lower in non-flowering
spurs compared with flowering ones for all the studied cultivars, which
confirms that decline in chlorophyll content coincided with a gradual decline in
productivity. A notably significantly lower spur leaf area was found in 'Amasya',
whereas the highest spur leaf area was in 'Cripps Pink'. However, no statistical
difference was observed between flowering and non-flowering spur leaf areas
within the same cultivars. The present results provided a general framework
of SPAD and spur leaf areas in 'Amasya' and other apple cultivars when spurs
had flowers or not. Knowledge of these characteristics provides a basis for
building a model related to yield elaboration of apple trees.
Keywords :
Chlorophyll Flowering Greenness index Leaf area SPAD