Pamukta Lif Kalite Özelliklerinde Melez Azmanl

Bu arastirma on pamuk genotipi ve bunlarin yarim diallel melezlerinde olusan populasyonunda lif kalite ozelliklerinde melez azmanliginin belirlenmesi amaci ile yurutulmustur. Lif uzunlugu icin, % 4.26 heterosis ile % 1.39 heterobeltiosis; Lif kopma dayanikliligi icin, % 1.77 heterosis ile % -6.16 heterobeltiosis; lif inceligi yonunden, % -2.97 heterosis ile % -8.69 heterobeltiosis; kisa lif orani icin, % -3.77 heterosis ile % -10.38 heterobeltiosis; lif uzunluk uyum indeksi icin, % 0.07 heterosis ile % -0.62 heterobeltiosis; lif kopma uzamasi icin, % 4.62 heterosis ile % -3.84 heterobeltiosis; sarilik degeri icin, % 0.54 heterosis ile % -4.33 heterobeltiosis; grilik degeri yonunden ise, % 0.80 heterosis ile % -2.69 heterobeltiosis degerleri bulunmustur. Anahtar Kelimeler: Diallel melezleme, lif kalite ozellikleri, melez azmanligi, pamuk A Heterosis Study For Fiber Quality Traits in Cotton ABSTRACT : This research was conducted to determine heterosis in fiber quality traits of ten cotton genotypes and their half diallel crosses. The values of heterosis and heterobeltiosis were 4.26% and 1.39%, 1.77% and -6.16%, -2.97% and -8.69%, -3.77% and -10.38%, 0.07% and -0.62%, 4.62%  and-3.84%, 0.54% and -4.33%; and 0.80%, -2.69% for fiber length, fiber strength, fiber fineness, short fiber rate, uniformity index, fiber elongation, the yellowness value and reflectance degree, respectively. Key words: Diallel cross, fiber quality traits, heterosis, cotton