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In this study, a canonical correlation analysis (CCA) was used to estimate relationships between plant characters [X set-fruit length (FL), fruit width (FW), fruit wall thickness (FWT), placenta length, stem thickness, plant height (PH), leaf length, leaf width, flowering time (50%), and time to maturity], and yield components [Y set-total fruit weight per plant (FW/P), average fruit weight and number of fruits per plant (FN/P)] of 56 red peppers [Capsicum annuum L. var. conoides (Mill.) Irish] in populations collected from the Samsun province in the Black Sea Region of Turkey. All canonical correlation coefficients (0.708, 0.635, 0.413) between the pairs of canonical variables were found to be significant (P < 0.01). The findings obtained from the CCA indicate that FN/P had the largest contribution for the explanatory capacity of canonical variables estimated from yield components of 56 red pepper populations when compared with other yield components. FL and PH had largest contribution for the explanatory capacity of canonical variables estimated from plant characters when compared with other characters. The results of this study show that PH, FWT and FW should be used with the aim of increasing yield per plant in red pepper genotypes.Additional key words: canonical correlation coefficient, canonical variable, multivariate analysis, population, variation. ResumenAnálisis de correlación canónica para relacionar caracteres de la planta con componentes del rendimiento en genotipos de pimiento rojo [Capsicum annuum L. var. conoides (Mill.) Irish] En este estudio se utilizó un análisis de correlación canónica (CCA) para estimar las relaciones existentes entre caracteres de la planta [X set -longitud del fruto (FL), anchura del fruto (FW), espesor de la pared del fruto (FWT), longitud de la placenta, espesor del tallo, altura de la planta (PH), longitud y anchura de la hoja, tiempo a 50% de floración y tiempo de madurez], y componentes del rendimiento [Y set-peso de frutos total por planta (FW/P), peso y número medio de frutos por planta (FN/P)] de 56 pimientos rojos [Capsicum annuum L. var. conoides (Mill.) Irish] en poblaciones recolectadas en la provincia Samsun de la región del Mar Negro de Turquía. Se encontró que todos los coeficientes de correlación canónica (0,708; 0,635; 0,413) entre las parejas de variables canónicas fueron significativos (P < 0,01). El CCA indicó que, entre los componentes del rendimiento, la relación FN/P fue la que más contribuyó en la capacidad explicatoria de las variables canónicas estimadas de las 56 poblaciones de pimiento. En el caso de los caracteres de la planta, FL y PH fueron los que más contribuyeron en la capacidad explicatoria de las variables canónicas estimadas. Este estudio muestra que se deben usar los caracteres PH, FWT y FW para incrementar el rendimiento de los genotipos de pimiento rojo.Palabras clave adicionales: análisis multivariante, coeficiente de correlación canónica, población, variable canó-nica, variación.

This study carried out to determine morphological traits of new experimental hybrids of cabbage and their parents. To determine morphological variability among tested hybrids and parents, they were analyzed for 34 morphological traits using Principal Component Analysis (PCA) and Cluster Analysis (CA). Results of the PCA indicated that the first three principal components accounted for 39.76% of the total variability among the 28 cabbage hybrids and 45.34% of the total variability among 22 cabbage parents for all the traits investigated. The first principal component (PC1) were the most important component and cabbage traits that constitute the PC1 (such as plant height, plant diameter, weight of head, diameter of head and length of head) were in fact the characteristics considered by breeders to be of greatest importance in cabbage breeding. At the result of CA, the cabbage hybrids were divided into eleven clusters and the cabbage parents were divided into nine clusters. PCA and CA confirmed that the cabbage hybrids and their parents were highly variable and had principally a significant variation for yield and yield components.ÖZET: Bu çalışma, yeni deneysel beyaz baş lahana hibritleri ve onların ebeveynlerinin morfolojik özelliklerini belirlemek için yürütülmüştür. İncelenen hibritler ve ebeveynler arasındaki morfolojik varyabiliteyi belirlemek amacıyla hibritler ve ebeveynler 34 morfolojik özellik için ana bileşen analizi ve kümeleme analizi ile analiz edilmiştir. Ana bileşen analizinin sonuçları ilk üç temel bileşenin araştırılan tüm morfolojik özellikler için 28 beyaz baş lahana hibriti arasındaki toplam varyabilitenin %39.76'sını ve 22 beyaz baş lahana ebeveyni arasındaki toplam varyabilitenin %45.34'ünü açıkladığını göstermiştir. İlk temel bileşen en önemli bileşen olarak bulunmuştur ve onu oluşturan özellikler (bitki boyu, bitki eni, baş ağırlığı, baş çapı ve baş yüksekliği) aslında lahana ıslahında ıslahçılar tarafından en büyük öneme sahip özellikler olarak düşünülmektedir. Kümeleme analizinin sonucunda beyaz baş lahana hibritlerinin 11 grupta ve ebeveynlerin 9 grupta kümelendiği belirlenmiştir. Ana bileşen analizi ve kümeleme analizi beyaz baş lahana hibritleri ve onların ebeveynlerinin oldukça değişkenlik gösterdiğini, verim ve verim bileşenleri için önemli bir varyasyona sahip olduklarını doğrulamıştır. Anahtar kelimeler: Islah, lahana, kümeleme analizi, morfolojik varyasyon, ana bileşen analizi Determination of Morphological Variability among Cabbage (Brassica oleracea var. capitata L.) Hybrids and Their Parents Beyaz Baş Lahana (Brassica oleracea var. capitata L.) Hibritleri ve

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Turkey is an important center for plant genetic resources and genetic diversity. It is also one of the domestication centers where ancient agriculture started. Traditionally small-scale agriculture in Turkey has been important in bringing together some species that have hybridized causing increases in variation. The status of vegetable species germplasm, collection and characterization activities, cultivar breeding programs and utilization of the vegetable genetic resources in Turkey are detailed. Conservation and maintenance of these valuable genetic resources are necessary because these populations are important sources of diversity that could be used in future breeding programs.