EFFECTS OF DIFFERENT INTERSTOCK LENGTHS ON THE YIELD, FRUIT QUALITY AND TREE SIZE OF KÜTDIKEN LEMON

Different lengths of Star Ruby grapefruit [(Citrus paradisi Macf.), (SR)] were used as interstocks for grafting on sour orange [(Citrus aurantium L.), (SO)] in this study to determine the effects of interstock length on tree size, fruit yield, and quality of the Kütdiken (Citrus limon Burm. f.) lemon cultivar (KL). The control trees were grafted directly to the sour orange without interstocks, and SO was used as the rootstock. Every year for five years, the fruit production was weighed. Fruit quality was assessed between 2002 and 2004. Interstock length had an effect on cumulative yield, yield efficiency, and tree growth, according to our findings. The highest cumulative yield was achieved by KL/SR-40 cm/SO trees, whereas the lowest yield was achieved by non-interstocked trees (KL/SO). Due to their tiny canopy volume and trunk cross-sectional areas, KL/SR-5 cm/SO trees exhibited the maximum yield efficiency (kg/cm2 and kg/m3). The yield per tree, cumulative yield, and yield efficiency were all lowest in non-interstocked trees.

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