In Vitro pollen germination and pollen tube characteristics in tetraploid red clover (Trifolium pratense L.)

Doğal tetraploid çayır üçgülü (Trifolium pratense L.) polenlerinin morfolojik özellikleri, fertiliteleri ve in vitro ortamdaki çimlenmeleri ile polen tüplerinin özellikleri ve kalloz oluşumları incelenmiştir. Çayır üçgülü polenleri trikolporate ve polen çimlenmesi monosifoniktir. In vitro şartlarda oluşan polen tüplerinde normal gelişimle birlikte, zayıf veya gelişmeyen tüplere de rastlanmış ve bazı polen tüplerinde kalloz birikimi gibi anormallikler gözlenmiştir.

Tetraploid çayır üçgülü (Trifolium pratense L.)' nde in vitro polen çimlenmesi ve polen tüpünün özellikleri

The morphological characteristics, fertility and in vitro germination of natural tetraploid red clover (Trifolium pratense I.) pollen were examined as well as the characteristics of pollen tubes and callose formation. Pollen grains of red clover are tricolporate and usually the germination of pollen is monosphonic. Among the pollen tubes that were formed under in vitro conditions, in addition to those that went through the normal growth process, poorly or non-grown pollen tubes were also observed. In addition, some abnormalities in the form of callose deposition were observed in the pollen tubes.

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