Genetic and physiology of cold and drought resistance in Turkish red pine (Pinus brutia, Ten.) populations from southern Turkey

Kandemir, Gaye Eren
The purpose of the study was to determine the pattern of genetic variation in morphological and physiological traits associated with cold and drought stress using seedling from over-exploited and natural populations of Pinus brutia Ten. (Turkish red pine) from southern Turkey. To determine the pattern of genetic variation existing in over-exploited and natural populations, seedlings from 6 populations each with 40 families were raised in Ankara forest nursery from 1998-2000. Three of the populations (Yaylaalan, 111Çalkaya and Gölhisar) were over-exploited and the others (Alanya, Fethiye and Çameli) were relatively natural populations. In three growing seasons, 17 characters were recorded including cold and drought stress involved traits. The component of variation due to populations varied from 0% in height growth by second flush 1999 (SF99) to 45% in cold damage in 2000 (COLD00) while variance component due to families ranged from 4% in height growth in July 2000 (HTJ00) and height growth in August 2000 (HTA00) to 23% in germination (GER) and survival in July 1998 (SUR1). Over-exploited and natural population group did not vary significantly in studied seedling traits. Evaluation of materials with the nursery winter conditions of 1999 (the lowest temperature during the winter of 2000 was -5.9°C) and 2000 (-15.2°C) and chlorophyll fluorescence measurements showed that Çameli and Gölhisar populations were the most cold tolerant ones while Çalkaya was the least tolerant to cold. Family heritabilities for cold tolerance traits were moderate and suggest that by selection for cold tolerance among families from Çameli and Gölhisar populations, considerable amount of genetic gain could be achieved in one generation. The families, which were suffered greatly from frost, were also the ones suffered from drought. Furthermore, these families accumulated less height growth after induced water stress. The most drought sensitive population was Çalkaya population. There were no significant differences among other populations for drought tolerance. On the average, cold resistant families during the water stress ivexperiment had higher osmotic potential in needles and proline accumulation than cold sensitive families. So osmotic potential of seedlings on proline contents in needles of seedlings during the drought period could be used as a reliable trait for rapid screening of large families from drought tolerant populations.


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Tolun, AA; Velioğlu, E; Çengel, Burcu N; Kaya, Zeki (2000-01-01)
In order to determine the magnitude and pattern of genetic diversity among Anatolian Black pine (Pinus nigra ARNOLD subspecies pallasiana) populations sampled in Bolkar Mountains and to recommend the potential populations which may be suitable for in situ conservation of genetic resources in this species, isoenzymes from 14 enzyme systems were investigated by starch gel electrophoresis. For this reason, open pollinated seed megagametophytes of half-sib families originated from the four populations (Camliyay...
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Sudupak, MA; Kence, Aykut (Springer Science and Business Media LLC, 2004-05-01)
Allozyme polymorphisms were used to assess genetic variation and relationships among ten Cicer species ( annuals and perennials) growing in Turkey. Using seven enzyme systems, 12 putative scorable loci were detected and surveyed for polymorphism in an accession collection including wild and cultivated forms. Variation was generally low within accessions and species, but common between species. Cluster analysis based on the pairwise genetic distance coefficients (Nei 1978) among accessions and species using ...
Population variation in drought resistance and its relationship with adaptive and physiological seedling traits in Turkish red pine (Pinus brutia Ten.)
Kandemir, Gaye; Önde, Sertaç; TEMEL, FATİH; Kaya, Zeki (2017-01-01)
Variation in drought resistance and its relationship with adaptive and physiological traits in forest trees are important in choosing suitable seed sources for reforestation and afforestation programs. A common garden experiment using 240 half-sib families originating from coastal and inland populations of Turkish red pine (Pinus brutia) in Turkey was set up with three replicates. The aims were to determine variation of drought damage, height growth, and phenology among populations and to investigate the re...
Genetic variation pattern among Abies cilicica (Pinaceae) populations: Adaptive seed and seedling traits
Gülsoy, Ali Murat; Doğan, Musa; Department of Biology (2022-9-12)
The pattern of genetic variation in adaptive seed and seedling traits of Abies cilicica was investigated using 160 families from 8 populations representing the species' natural range for two years in the Olcay Forest Nursery in Konya. The study indicated that both populations and families within populations varied significantly in seed and seedling traits. The pattern of genetic variation among populations suggests that there may be a clinal variation concerning altitude and latitude regarding these traits....
Citation Formats
G. E. Kandemir, “Genetic and physiology of cold and drought resistance in Turkish red pine (Pinus brutia, Ten.) populations from southern Turkey,” Ph.D. - Doctoral Program, Middle East Technical University, 2002.