Pistacia türlerinin tohum çimlenmesi üzerine dinlenme azaltıcı uygulamaların etkileri

Year 2019, , 206 - 210, 18.06.2019

Halil Yaşar İzzet Açar

https://doi.org/10.29050/harranziraat.445109

Abstract

TBu
çalışma, katlama, sülfürik asitle aşındırma, kavlatma ve GA₃
uygulamalarını içeren farklı tohum dinlenmesini azaltıcı uygulamaların,
antepfıstığına anaç olarak kullanılan Pistacia
türlerinin (Pistacia vera-Kırmızı ve
Siirt çeşitleri, P. khinjuk-A, P. khinjuk-B, P. atlantica, P. terebinthus
ve P. mutica) tohum çimlenmesi
üzerine etkilerini belirlemek amacıyla yürütülmüştür. Çalışmada kullanılan
tohum dinlenmesini azaltıcı uygulamalar; kabuklu (kontrol), kabuklu + GA₃,
kavlak, kavlak + GA₃,
sülfürik asitle aşındırma ve sülfürik asitle aşındırma + GA₃’tür.
Denemede kullanılan Pistacia türlerinin tohumları, tohum dinlenmesini azaltıcı uygulamalardan sonra +4 °C’de 50
gün katlamaya alınmıştır. Katlamadan çıkarılan tohumlar, serada içerisine torf
doldurulmuş viyollere ekilmiştir. En yüksek çimlenme oranı, P. khinjuk-A’da sülfürik asitle aşındırma uygulamasından elde edilmiş (%96.7) ve bunu P. vera-Kırmızı ile P. mutica’da kavlatma uygulaması izlemiştir (%94.6 ve %93.2). En
düşük tohum çimlenmesi ise P. mutica’nın
kabuklu + GA₃ uygulamasında (%6.7) görülmüştür.  Pistacia
türlerinin tohum çimlenmesi tür bazında incelendiğinde, en yüksek çimlenme P. vera-Kırmızı çeşidinde görülmüş ve
bunu P. khinjuk-B takip etmiştir. En
düşük çimlenme oranı ise P. atlantica’da
belirlenmiştir. 

Keywords

GA3, Pistacia türleri, Katlama, Asitle aşındırma, Tohum çimlenmesi

Effects of dormancy-breaking treatments on seed germination of Pistacia species

Abstract

This study was carried out to
determine the effects of different dormancy-breaking treatments including
stratification, sulfuric acid scarification, dehulling and gibberellic acid
(GA3), on seed germination of different Pistacia
species e.g. Pistacia vera cv.
Kırmızı, Pistacia vera cv. Siirt, P. khinjuk-A, P. khinjuk-B, P. atlantica, P. terebinthus and P. mutica using as rootstock for pistachio trees. Seed dormancy-breaking
treatments were shelled (control), shelled + GA₃, dehulled, dehulled
+ GA₃, Sulfuric acid scarification and sulfuric acid scarification +
GA₃ applications in the experiment. The seeds of Pistacia species were stratified at 4 °C
for 50 days after the dormancy-breaking treatments. Stratified seeds were sown
in the seedling viols filled with peat in the greenhouse to determine the
germination percentage. The highest germination rate was obtained from sulfuric
acid scarification in P. khinjuk-A (96.7%),
and followed by dehulled application of P.
vera cv. Kırmızı and P. mutica
species with 94.6% and 93.2%, respectively. On the other hand, the lowest seed
germination was observed for shelled + GA₃ application of P. mutica with 6.7%. When the seed germination
rates of Pistacia sp. were examined,
the highest germination occurred in P.
vera cv. Kırmızı, and followed by P.
khinjuk-B. The lowest germination rate was observed on P. atlantica.

Keywords

GA3, Pistacia sp., Stratification, Scarification, Seed germination

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