hrvatski

Usporedba morfoloških svojstava mahuna i sjemenki rogača iz populacija srednjodalmatinskih otoka s osvrtom na lokalnu sortu “Komižki rogač”

Komparativna morfometrijska istraživanja morfoloških osobina mahuna i sjemenki lokalne sorte rogača "Komižki rogač" i populacija susjednih otoka, provedena su na populacijama za koje je, prethodnim AFLP analizama i nakon provedene AMOVA-e, utvrđeno da pripadaju genetski srodnim populacijama rogača. Cilj istaživanja je utvrditi učinak selekcije na važna gospodarska svojstva lokalne sorte ''Komižki rogač''. Komižki rogač, uz populaciju s otoka Drvenik Mali mogao bi biti dobar ishodišni materijal za dalju selekciju na ekonomski važna morfološka svojstva. To estimate efficiency of selection on important economic characteristics of local cultivar “Komižki rogač” in comparison with the populations of middle Dalmatian islands, the comparative morphometric research of pods and seeds were done on populations which are, according to previous results of AFLP analysis and AMOVA, geneticaly similar. Pod length of local cultivar “Komižki rogač” is significantly higher in the comparison with the pod length of other plants of carobs other than “Komiža rogač” on the island of Vis, as well as, with the populations of islands of Šolta and Hvar. However, the avarage difference of pod length is not significantly higher in the comparison with carob population of Drvenik Mali island (F-test ns, p=0.251, df=68 for each comparison). Namely, population of carob trees of Drvenik Mali Island is planted with the seeds from selected pods from the local cultivar of “Komižki rogač”, or, by grafting of scion buds collected from “Komižki rogač” on support of bisexual carob plants on Drvenik Mali. The lowest average weigth of carob pods was found in population of island of Hvar, and other differences were not significant (F-test Komižki rogač vs. polulation of Vis, Šolta, Drvenik Mali were not significant, p=0.87 ; 0.83 ; 0.54, df=68 for each comparison). The same is for characteristics of seeds number per pod. Average individual seed weight of the carob population of island of Hvar is significantly smaller in comparison with “Komiža rogač” and the other comparisons were not significant. Local cultivar of “Komiža rogač” with carob population of Drvenik Mali island could be a good basic material for continous selection on important economic traits, such as pod length and weigth of individual seed (in both cases 0.18 g/seed). The results of morphometric research, with exception of pod length, mainly correspond with the results of previous AFLP analysis and AMOVA.

rogač, Ceratonia siliqua L., mahune, sjeme, morfološka svojstva

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