Satsuma Mandarininde Elle Meyve Seyreltmesinin Verim ve Kaliteye Etkileri ve Ağaçların Verimleri Arasında İlişkiler

Year 1978, Volume: 9 Issue: 1-2-3, 16 - 21, 31.12.1978

İsmail Karaçalı

Abstract

Bu çalışmada, verimin 1/4'üne kadar meyve seyreltmesinin etkileri ve iki yıllık ağaçların verimleri arasındaki ilişkiler araştırılmıştır. Meyve seyreltmesinin, sonraki iki hasadın meyve özellikleri ve verimi üzerinde bir etkisi olmadığı bulunmuştur. Verim ile askorbik asit içeriği, verim ve meyve indeksi arasında negatif korelasyonlar, ancak verim ile meyve kabuğunun kırmızı rengi (Hunter 'a') arasında pozitif korelasyon vardır. 1973'te rastgele seçilen ve ertesi yıl verimi kısmen artan, kısmen azalan ağaçların yıllık verimleri arasında negatif korelasyon (r = -0,48) vardır. Buna karşılık, 1974'te iyi ve verimli olarak kasıtlı olarak seçilen ve verimleri azalan ağaçlarda pozitif korelasyon (r = 0,82) vardır. Verim değişimleri arasındaki korelasyon katsayıları her iki durumda da negatiftir (r = -0,82, r = -0,55).

Keywords

Satsuma Mandarini , Meyve Seyreltmesi , Verim ve Kalite

Influence of fruit thinning by hand on fruit quality and yield of ‘Satsuma’ trees, and the relationships between the yield of two subsequent years

Abstract

This study investigated the effects of fruit thinning down to 1/4 of the yield and the relationships between the yields of two years of trees. It was found that fruit thinning has no influence on the fruit characteristics and yields of two subsequent harvests. There are negative correlations between yield and ascorbic acid content, yield and fruit index, but a positive correlation between yield and the red coloration of the fruit skin (Hunter 'a'). There is a negative correlation (r = -0.48) between annual yields of trees randomly selected in 1973, whose yields partly increased and partly decreased in the following year. In contrast, there is a positive correlation (r = 0.82) for trees deliberately selected in 1974 as good and productive, whose yields decreased. The correlation coefficients between the yield changes are negative in both cases (r = -0.82, r = -0.55).

Keywords

Satsuma

References

• Hilgeman, R.H. 1973. Annual Variation in Yield of Citrus Trees. Calif. Citrograf, 58(12): 423-447.
• Jones, W.W., C.B. Cree, 1965. Environmental Factors related to Fruiting of Washington Navel Oranges over a 38-Year Period. Proc. Amer. Soc. Hort. Sci., 86: 267-271.
• Jones, W.W., T.W. Enbleton, 1970. Effects of delayed Harvest on California Valencias. Calif. Citrograf, 56(4): 102-115.
• Karaçalı, İ. 1977. Satsuma Mandarininde (Citrus unshiu Marc) Meyve Kalitesi Olgunlaşma ve renklenme Üzerinde Karşılaştırmalı Ekolojik Araştırmalar. Habilt. Tezi, Ege Üniversitesi, İzmir.
• Lovon, R., A. Bar-Akiva, 1976. Minardi Nutrients as Thinning Agents in "Wilking" Mandarin Trees. HortScence 11(4): 419-420.
• Lenz, F. 1972. Einfluss von Murzeln und Frucht auf die Photosynthese bei Citrus. Angew. Bot, 14: 11-20.
• Lenz, F., P.R. Cary, 1969. Relationships Between the Vegetative and Reproductive. Growth in "Washington Navel" Orange as Affected by Nutrition. Proc. 1. Int. Citrus Symp. 3: 1625-1635.
• Lenz, F., U. Küntzel, 1974. Carbohydrate Content of Citrus Leaves as Affected by Fruit Load. Gartenbauwiss. 39(1): 99-101.
• Moos, G.I., 1971. Effect of Fruit on Flowering in Relation to Biennial Bearing in Sweet Orange (C.sinensis). Hort. Abst. 9780.
• Ogaki, C., K. Fujita, H. Ho, 1969. Investigation on the cause and Control of Alternate Bearing of Satsuma Orange Trees. 8. Effect of Thinning, Pruning and Fertilizer Application. 9. Conclusion. Hort. Abst. 2222.
• Shimizu, T., H. Torikata, S. Torii, 1976. Studies on the Effect of Crop Load on the Composition of Satsuma Trees. 3. The effect of Different Leaf to Fruit Ratios on the Carbohydrate Content of the Tree at Harvest and on the Flower and Foliage Production in the following Year. Hort. Abst., 7145.
• Shimizu, T., H. Torikata, S. Torii, 1977. IV, A Comparison of Dry Matter Production in Bearin and non-Bearing Trees. Hort. Abst. 6876.