Naslov
Description and identification of some trispecies hard pine hybrids by morphological and anatomical traits

Autori
Borzan, Želimir ; Idžojtić, Marilena

Izvornik
Forest genetics (1335-048X) 3 (2002), 9; 171-182

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
trispecies hybrids; Pinus sylvestris; P. densiflora; P. nigra; P. thunbergiana; morphology; discriminant analysis

Sažetak
Three trispecies hybrid pines are described: 1. Pinus ×vidakovicii = Pinus sylvestris L. × (P. densiflora Siebold et Zucc. × P. nigra J. F. Arnold) ; 2. Pinus ×kriebelii = (P. nigra J. F. Arnold × P. sylvestris L.) × P. densiflora Siebold et Zucc. ; 3. Pinus ×hagmanii = (P. nigra J. F. Arnold × P. sylvestris L.) × P. thunbergiana Franco. Those hybrids were produced by controlled hybridization, the first in 1962, the second and the third in 1985. Nineteen morphological and anatomical characteristics of needles and shoots were analyzed. Discriminant analysis was used to investigate the possibility of identification and differentiation of the trispecies hybrids among themselves and from the parental species. Based on analyzed characteristics, the P. ×vidakovi&aelig ; ; ii trispecies hybrid could be identified in 100 % of cases. It could also be differentiated from the parental species (P. sylvestris, P. densiflora, P. nigra) and from the F1 hybrid P. densiflora × P. nigra. The latter was used as a pollen donor when the trispecies hybrid was produced. The P. ×kriebelii hybrid was also successfully differentiated from the parental species (P. nigra, P. sylvestris, P. densiflora), but when compared with the F1 hybrid P. nigra × P. sylvestris, which was used as the mother plant for the trispecies hybrid, misidentification occurred in 12 % of cases. P. ×hagmanii could be identified in 100 % of cases when compared with P. sylvestris and P. thunbergiana, but in 5 % of cases the trispecies was misidentified when compared with P. nigra and in 10 % of cases when compared with the F1 mother plant hybrid P. nigra × P. sylvestris. Identification of each trispecies hybrid was 100 % accurate when P. ×vidakovicii and P. ×hagmanii were compared with the other two trispecies hybrids. When trispecies hybrid P. ×kriebelii was compared with the other two trispecies hybrids, in 2.4 % of cases they were misidentified as P. ×vidakovicii and as P. ×hagmanii.

Izvorni jezik
Engleski

Znanstvena područja
Šumarstvo

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