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Publishing of the journal Agricultura is financially supported by Slovenian Research Agency.

Izdajanje revije Agricultura je finančno podprto s strani Javne agencije za raziskovalno dejavnost Republike Slovenije.


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The journal AGRICULTURA (A) publishes scientific works from the following fields: animal science, plant production, farm mechanisation, land management, agricultural economics, ecology, biotechnology, microbiology
ISSN 1581-5439
Anton IVANČIČ, Metka ŠIŠKO, Borut BOHANEC and Simona ŠIFTAR
pp. 1-5

The aim of the investigation was to describe some of the main morpho-agronomic characteristics of the interspecific hybrid Cucurbita ficifolia × C. maxima, and to define the traits which can be used for distinguishing this hybrid from the parental species. The hybrid was obtained using emryorescue technique. The plants were extremely vigorous and were growing and flowering until the first frost. The ratio male versus female flowers was ranging between 1 : 40 and 1 : 80. Most of the male and female flowers were sterile or partly sterile. The majority of the analysed traits were intermediate regarding the parental species. The most appropriate traits for the determination of the interspecific nature were the leaf margin, the shape and colour of ripe fruits and the shape of fruit stalks. The fruit exterior was extremely hard (similarly to the one of C. ficifolia) and cracked in several places.

Key words: interspecific hybridisation, Cucurbita ficifolia, Cucurbita maxima, flowering, morphology


Slovenian:

Morfo-agronomske lastnosti medvrstnega hibrida Cucurbita ficifolia × C. maxima

Namen raziskave je bil opisati nekaj glavnih morfo-agronomskih lastnosti medvrstnega hibrida Cucurbita ficifolia × C. maxima in opredeliti lastnosti, ki se lahko uporabljajo za razlikovanje tega hibrida od starševskih vrst. Omenjeni medvrstni hibrid je bil dobljen s pomočjo tehnike reševanja embrija (emryo rescue technique). Rastline so bile zelo bujne in so rasle ter cvetele do prve zmrzali. Razmerje med moškimi in ženskimi cvetovi se je gibalo med 1: 40 in 1: 80. Večina moških in ženskih cvetov je bila povsem ali delno sterilna. Večina analiziranih lastnosti je bila nekje vmes glede na starševski vrsti. Najbolj uporabne lastnosti za določanje medvrstnih križancev so bile rob listov, oblika in barva zrelih plodov in oblika peclja ploda. Zunanja plast ploda je bila izredno čvrsta, podobno kot pri vrsti C. ficifolia, in je v zrelosti počila v več mestih.

Ključne besede: interspecies /hibridizacija / Cucurbita ficifolia / Cucurbita maxima / cvetenje / morfologija


 

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