YIELD QUANTITY AND QUALITY OF FIELD CULTIVATED EGGPLANT IN RELATION TO ITS CULTIVAR AND THE DEGREE OF FRUIT MATURITY
Katarzyna Adamczewska-Sowińska
Wrocław University of Environmental and Life SciencesMagdalena Krygier
Wrocław University of Environmental and Life SciencesAbstract
Eggplant cultivars differ from one another in a number of properties, among others, earliness of fruiting and the length of fruiting period. A considerable problem regarding eggplant field cultivation in Poland is relatively high failure due to characteristics of our climate. Two-factorial field experiment established according to randomized splitplot method in three replications, aimed at the assessment of yielding of five eggplant cultivars: Avan F1, Black Beauty, Classic F1, Epic F1 and Vernal F1 (I factor). Plants were planted between 4th – 7th June, on the experiment years. Fruits were harvested in the stage of optimum harvesting maturity (every 7 days) and after exceeding this stage (every 10 days) (II factor). There was recorded significant diversity in eggplant yield in the years of the experiment, as well as in relation to its cultivar and the stage of fruit harvesting maturity. High temperature and sufficient amount of precipitation favored eggplant development
in 2008, which was proved by yield (23.48 t ha-1) higher than that in next years, average by 71.4% in the case of marketable yield and by 7.5 times higher for early yield (11.87 t ha-1). Vernal F1, Epic F1 and Avan F1 cultivars produced yield ranging from 23.79–18.89 t ha-1, while Classic F1 and Black Beauty featured yield lower by half. The marketable yield of elder fruits was higher than the one regarding fruits harvested in their optimum maturity stage. The results of chemical analysis proved that fruits in optimum maturity contained higher dry matter and reducing sugars in comparison to elder fruits. Yet no proof was found involving differences in biological value of the examined eggplant cultivars.
Keywords:
Solanum melongena L., variety, harvest term, marketable yield, early yield, biological valueReferences
Ambroszczyk A.M., Cebula S., Sękara A., 2008. The effect of shoot training on yield, fruit quality and leaf chemical composition of eggplant in greenhouse cultivation. Folia Hort. Ann. 20(2), 3–15.
Aujla M.S., Thind. H.S., Buttar G.S., 2007. Fruit yield and water use efficiency of eggplant (Solanum melongena L.) as influenced by different quantities of nitrogen and water applied through drip and furrow irrigation. Sci. Hortic. 112, 142–148.
Azuma K., Ohyama A., Ippoushi K., Ichiyanagi T., Takeuchi A., Saito T., Fukuoka H., 2008. Structures and antioxidant activity of anthocyanins in many accessions of eggplant and its related species. J. Agric. Food Chem. 56(21), 10154–10159.
Buczkowska H., 2010. Effect of plant pruning and topping on yielding of eggplant in unheated foil tunnel. Acta Sci. Pol., Hortorum Cultus 9(3), 105–115.
Buczkowska H., Kowalska G., 2000. Wpływ zapylania kwiatów przez trzmiela ziemnego (Bombus terrestris) na plonowanie oberżyny w nieogrzewanym tunelu foliowym. Annales UMCS sec. E Agricultura, 8, supl., 383–389.
Cebula S., Ambroszczyk A.M., 1999. Ocena wzrostu roślin, plonowania i jakości owoców ośmiu odmian oberżyny (Solanum melongena L.) w uprawie szklarniowej. Acta Agr. Silv. 37, 49–58.
Chanasut U., Rattanapanone N., 2006. Screening methods to measure antioxidant activities of phenolic compound extracts from some varieties of thai eggplants. ISHS Acta Hort., 765.
Ertek A., Şensoy S., Küçükyumuk C., Gedik I., 2006. Determination of plant-pan coefficients for field-grown eggplant (Solanum melongena L.) using class A pan evaporation values. Agric. Water Manage., 85, 58–66.
Gajewski M., Arasimowicz D., 2006. Wpływ stadium dojrzałości oraz przechowywania na zawartość wolnych kwasów polifenolowych w owocach odmian oberżyny (Solanum melongena L.). Folia Hort. supl. 1, 128–132.
Gajewski M., Arasimowicz D., Gajewska M., 2006. Wpływ stadium dojrzałości oraz przechowywania na zawartość antocyjanów i parametry barwy skórki w owocach oberżyny (Solanum melongena L.). Annales UMCS sec.. E Agricultura 16, 31–37.
Golcz A., Politycka B., Markiewicz B., 2005. Zawartość makroskładników w oberżynie (Solanum melongena L.) uprawianej w podłożach organicznych wielokrotnie użytkowanych. Rocz. AR Poznań, 370, Ogrodnictwo 39, 13–19.
Kowalski R., Kowalska G., Wierciński J., 2003. Chemical composition of fruits of three eggplant (Solanum melongena L.) cultivars. Folia Hort. 15(2), 89–95.
Kunachowicz H., Nadolna I., Iwanow K., Przygoda B. 2005. Wartość odżywcza wybranych produktów spożywczych i typowych potraw. Wyd. Lek. PZWL Warszawa.
Lawande K.E., Chavan J.K., 1998. Eggplant (Brinjal). Handbook of vegetable science and technology. Production, composition, storage and processing. Marcel Dekker INC, New York, 225–244.
Markiewicz B., Golcz A., Kujawski P., 2008. Effect of plant nutritional status on the yield of eggplant (Solanum melongena L.) grown in organic substrates. Part I. Nitrogen, phosphorus, potassium. Acta Sci. Pol., Hortorum Cultus 7(2), 11–20.
Michałojć Z., Buczkowska H., 2008. Content of macroelements in eggplant fruits depending on nitrogen fertilization and plant training method. J. Elementol. 13(2), 269–274.
Okmen B., Sigva H. O., Mutlu S., Doganlar S., Yemenicioglu A., Frary A., 2009. Total antioxidant activity and total phenolic contents in different Turkish eggplant (Solanum melongena L.) cultivars. Int. J. Food Prop. 12, 616–624.
Raigón M.D., Prohens J., Munoz-Falcón J.E., Nuez F., 2008. Comparison of eggplant landraces and commercial varieties for fruit content of phenolics, minerals, dry matter and protein. J. Food Compos. Anal. 21, 370–376.
Russo V.M., 1996. Cultural methods and mineral content of Eggplant (Solanum melongena) fruit. J. Sci. Food Agric. 71, 119–123.
USDA (United States Department of Agriculture), 2010. USDA National Nutrient Database for Standard Reference, Release 23 (2010), http://www.nal.usda.gov/fnic/foodcomp/egibin/list_nut_edit.pl
Wrocław University of Environmental and Life Sciences
Wrocław University of Environmental and Life Sciences
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