Genetic variability of some quality traits in Lathyrus spp. germplasm | Genetska variabilnost nekaterih parametrov kakovosti semena Lathyrus spp.

English. Sixty-six accessions representing eighteen species of the genus Lathyrus collected from different geographic regions were evaluated for variations of quality traits (100 seeds weight, ash, total seed proteins and 3-(-N-oxayl)-L-2,3 diaminopropoinc acid – ODAP contents). High variability of ODAP levels was exhibited at both inter-specific and intra-specific levels. This variability was attributed to genetic and environmental factors. No significant correlation was found between ODAP and each of total protein content, ash content and 100 seeds weight. Cluster analysis of C.V. (Coefficient of variance) values for each accession identified the sixty-six accessions into eight groups. The most promising accession for breeding programs was L. sativus from Tunisia. This accession has good grain quality due to relatively low ODAP level and high protein content. The variations of protein content, ash content and 100-seeds weight were also discussed.

Slovenian. Ocenili smo variabilnost kakovosti (masa 100 semen, pepel, skupne beljakovine in vsebnost 3-(-N-oksail)-L-2,3 diaminoproposke kisline – ODAP) 66 akcesij 18 vrst rodu Lathyrus, ki smo jih zbrali z različnih geografskih regij. Ugotovili smo visoko stopnjo variabilnosti vsebnosti ODAP med vrstami in znotraj njih. To variabilnost povzročajo tako genetsko kot okoljski dejavniki. Nobene značilne povezave nismo našli med vsebnostjo ODAP in vsebnostjo celokupnih beljakovin, vsebnostjo pepela in maso 100 semen. Klasterska analiza variacijskega koeficienta (C.V.) je 66 akcesij razdelila v osem skupin. Najbolj obetavna akcesija za nadaljnje žlahtnjenje je bila akcesija L. sativus iz Tunizije. Ta akcesija ima dobro kakovost zrna, ki je posledica nizke vsebnosti ODAP in visoke vsebnosti beljakovin. Presojali smo tudi variabilnost vsebnosti beljakovin, pepela in mase 100 semen.