Breeding systems and reproductive success on Salvia smyrnaea
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Tarih
2011
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info:eu-repo/semantics/openAccess
Özet
Salvia smyrnaea Boiss. (Lamiaceae) türünün Nif Dağı populasyonundaki üreme ekolojisi, özellikle üreme sistemi ve üreme başarısı araştırılmıştır. Çalışma materyalini Nif Dağında (İzmir) 1510 m yükseklikte yayılış gösteren S. smyrnaea oluşturmaktadır. Stigma olgunluğunu belirlemek için 25’er adet genç ve olgun çiçekte Perex testleri uygulanılmıştır. Polen canlılığı için MTT yöntemi kullanılmıştır. S. smyrnaea taksonuna ait tozlaşma tipini belirleyebilmek için, bitkinin çiçekleri üzerinde 5 farklı tozlaştırma işlemi yapılmıştır. Üreme başarısı, nutlet oluşturulması temelinde incelenmiştir. Perex test uygulanan 25 adet genç çiçekte ortalama 71 ppm ile enzim aktivitesi %14,2 olduğu saptanırken, 25 adet olgun çiçekte ortalama 300 ppm ile enzim aktivitesi % 60 olarak tespit edilmiştir. Olgun çiçeklerde en yüksek polen canlılığı % 10,29 iken, genç çiçeklerde bu değer % 70,27 olarak tespit edilmiştir. Çalışmamızda S. smyrnaea türünün, kendine uyumsuzluk değeri (ISI) = 22/24 = 0,91 (0,2 ile 1) olarak hesaplanmış ve kısmen kendine uyumsuz olarak belirlenmiştir. Bu sonuç taksonun proterandrik olması ile uyumlu bulunmuştur.
The reproductive ecology of Salvia smyrnaea Boiss. (Lamiaceae) on Mount Nif along with their breeding system and reproductive success were examined. S. smyrnaea, distributed over Mount Nif (İzmir Province) at an altitude of 1510 m, is the study material of this research. To detect the stigma receptivity, the Perex test was applied to 25 young and mature fl owers. To detect pollen viability, the MTT method was used. To detect the fertilisation type of the taxon S. smyrnaea, 5 diff erent fertilisation methods were tested on the fl owers of the plant. Breeding success was assessed through nutlet formation. While the enzyme activity was calculated as approximately 14.2% with an average of 71 ppm in 25 young fl owers to which Perex tests were applied, it was approximately 60% with an average of 300 ppm in the mature fl owers. in the mature fl owers, the highest pollen viability was 10.29%, whereas this rate was 70.27% for the young fl owers. in our study, the self-incompatibility rate of S. smyrnaea was calculated as (ISI) = 22/24 = 0.91 (between 0.2 and 1) and it was detected as partially self-incompatible. Th is result was in line with the fact that the taxon is protandrous.
The reproductive ecology of Salvia smyrnaea Boiss. (Lamiaceae) on Mount Nif along with their breeding system and reproductive success were examined. S. smyrnaea, distributed over Mount Nif (İzmir Province) at an altitude of 1510 m, is the study material of this research. To detect the stigma receptivity, the Perex test was applied to 25 young and mature fl owers. To detect pollen viability, the MTT method was used. To detect the fertilisation type of the taxon S. smyrnaea, 5 diff erent fertilisation methods were tested on the fl owers of the plant. Breeding success was assessed through nutlet formation. While the enzyme activity was calculated as approximately 14.2% with an average of 71 ppm in 25 young fl owers to which Perex tests were applied, it was approximately 60% with an average of 300 ppm in the mature fl owers. in the mature fl owers, the highest pollen viability was 10.29%, whereas this rate was 70.27% for the young fl owers. in our study, the self-incompatibility rate of S. smyrnaea was calculated as (ISI) = 22/24 = 0.91 (between 0.2 and 1) and it was detected as partially self-incompatible. Th is result was in line with the fact that the taxon is protandrous.
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Biyoloji
Kaynak
Turkish Journal of Botany
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Cilt
35
Sayı
6
