Effects of Different Pruning Systems on Fruit Quality and Yield in California Wonder Peppers (Capsicum annuum L.) Grown in Soilless Culture

This study was conducted to determine the effects of four pruning methods (Non-pruned, two, three and four stem pruning) on some growth parameters, yield and fruit quality in California Wonder Pepper (Capsicum annuum L.). The experiment was carried out between April and September 2020 in a climate controlled venlo type glass research greenhouse with automation system.In this study, two commercial pepper Rapido and Roxy California Wonder type (Rapido: red color Roxy: yellow color) varieties were used. Seedlings transplanted in cocopeat slabs were grown in soilless culture. The experiment was designed according to randomized plots with 3 replicates each including 8 plants. Pruning applications-leaving two, three and four branches in pepper varieties significantly increased plant height, plant fresh weight and stem diameter compared to the non-pruned plants. Pruning methods significantly increased fruit weight, fruit length and diameter. SPAD of leaves value, fruit flesh thickness, fruit firmness, fruit Brix and fruit EC values were positively affected by pruning methods. However, no effect of pruning methods on fruit color and pH was determined. Total yield per plant was reduced compared to non-pruned plants, except for 4 branch pruning. However, the reduction in the number of branches left with pruning significantly increased the rate of marketable fruit. To conclude, it was determined that the decrease in the number of branches left in California Wonder pepper varieties significantly decreased the number of non-marketable fruits, especially three and four branch pruning increased fruit quality as well as marketable yield.

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  • Akintoye, H., Kintomo, A., Adekunle, A. 2009. Yield and fruit quality of watermelon in response to plant population. International Journal of Vegetable Science, 15(4):369-380.
  • Aktaş, H., Söylemez, S., Pakyürek, A. Y. 2009. Farklı budama şekillerinin sera dolmalık biber (Capsicum annuum L.) yetiştiriciliği üzerine etkisi. HR.Ü.Z.F.Dergisi, 13(3):31 – 36.
  • Alsadon, A., Wahb-Allah, M., Abdel-Razzak, H., Ibrahim, A. 2013. Effects of pruning systems on growth, fruit yield and quality traits of three greenhouse-grown bell pepper (Capsicum annuum 'L.) cultivars. Australian Journal of Crop Science, 7(9):1309-1316.
  • Ambroszczyk, A. M., Cebula, S., Sękara, A. 2007. The effect of plant pruning on yield and fruit quality of eggplant (Solanum melongena L.) in greenhouse cultivation. Horticulture Environment and Biotechnology, 48(5): 277-285.
  • Bahadırlı, E. 2002. Sera patlıcan üretiminde farklı budama ve sıra üzeri mesafelerin verim, bitki büyümesi ve meyve kalitesi üzerine etkileri. Çukurova Üniversitesi Fen Bilimleri Enstitüsü, Yüksek Lisans Tezi, 51.
  • Bosland, P., Votava, E. 2000. Peppers: Vegetable and spice capsicums. CAB International, Wallingford, UK.
  • Boswell, V. R. 1937. Genetıcs of Tomatoes, Peppers, and Eggplant. Yearbook of agriculture, 176.
  • Cebula, S. 1995. Optimization of plant and shoot spacing in greenhouse production of sweet pepper. I International Symposium on Solanacea for Fresh Market, 412: 321-329.
  • Cebula, S., Kalisz, A., Kunicki, E. 1998. Canopy formation of sweet pepper plants pruned to one main shoot in greenhouse production. Folia Horticulturae, 10(2): 35-44.
  • Das, S., Teja, K. C., Duary, B., Agrawal, P. K., Bhattacharya, S. S. 2016. Impact of nutrient management, soil type and location on the accumulation of capsaicin in Capsicum chinense (Jacq.): One of the hottest chili in the world. Scientia Horticulturae, 213: 354-366.
  • Duimovic, M., Bravo, M. 1979. Effects of nitrogen and spacing on the yields and quality of bell pepper. Investigation Agraria, 6: 99-103.
  • Hovi-Pekkanen, T., Näkkilä, J., Tahvonen, R. 2005. Increasing productivity of sweet pepper with interlighting. V International Symposium on Artificial Lighting in Horticulture,711:165-170. Jovicich, E., Cantliffe, D. J., Hochmuth, G. J. 1999. Plant density and shoot pruning on yield and quality of a summer greenhouse sweet pepper crop in Northcentral Florida. In Proceedings 28th National Agricultural Plastics Congress, 184-190.
  • Jovicich, E., Cantliffe, D. J., Stoffella, P. J. 2004. Fruit yield and quality of greenhouse-grown bell pepper as influenced by density, container, and trellis system. HortTechnology, 14(4):507-513.
  • Maboko, M., Du Plooy, C., Bertling, I. 2010. Performance of tomato cultivars in temperature and non-temperature controlled plastic tunnels. In XXVIII International Horticultural Congress on Science and Horticulture for People (IHC2010): International Symposium on 927, 405-411.
  • Maboko, M., Plooy, C. D. 2008. Effect of pruning on yield and quality of hydroponically grown cherry tomato (Lycopersicon esculentum). South African Journal of Plant and Soil, 25(3):178-181.
  • Maffei, H. M., Filip, G. M., Grulke, N. E., Oblinger, B. W., Margolis, E. Q., Chadwick, K. L. 2016. Pruning high-value Douglas-fir can reduce dwarf mistletoe severity and increase longevity in Central Oregon. Forest Ecology and Management, 379: 11-19.
  • Orsini, F., Maggio, A., Rouphael, Y., De Pascale, S. 2016. “Physiological quality” of organically grown vegetables. Scientia Horticulturae, 208: 131-139.
  • Powell, A. L., Nguyen, C. V., Hill, T., Cheng, K. L., Figueroa-Balderas, R., Aktas, H., Ashrafi, H., Pons, C., Fernández-Muñoz, R., Vicente, A. 2012. Uniform ripening encodes a Golden 2-like transcription factor regulating tomato fruit chloroplast development. Science, 336(6089): 1711-1715.
  • Sevgican, A. 1999. Örtüaltı Sebzeciliği Cilt I. E Ü. Ziraat Fakültesi Yayınları,No: 528, İzmir.
  • Showalter, R. K. 1973. Factors affecting pepper firmness. Proc. Fla. State Hort.Soc., 85:230-232.
  • Singh, I., Kaur, A. 2018. Effect of pruning systems on growth and yield traits of greenhouse grown bell pepper (Capsicum annuum L. var. grossum). Indian Journal of Agricultural Research, 52(4): 414-418.
  • Stoffella, P., Bryan, H. 1988. Plant population influences growth and yields of bell pepper. Journal of the American Society for Horticultural Science, 113(6): 835-839. Votava, E. J., Bosland, P. W. 2002. A cultivar by any other name: Genetic variability in heirloom bell pepper 'California Wonder'. HortScience, 37(7):1100-1102.
  • Zende, U. M. 2008. Investigation on production techniques in capsicum under protected cultivation. College of Agriculture, Dharwad, University of Agricultura Sciences Dharwad M. Sc. degree.