Soğukta depolamanın farklı dönemlerdeki Tenebrio molitor L., 1758 (Coleoptera: Tenebrionidae) larvalarının gelişimsel biyolojisine etkileri

Böcekleri düşük sıcaklıklarda depolamak, böceklerin ticari amaçla kitlesel olarak yetiştirilmesinde önemli rol oynamaktadır. Bu çalışmadaki amaç düşük sıcaklıkta depolamanın farklı ağırlıktaki Tenebrio molitor L., 1758 (Coleoptera: Tenebrionidae) larvalarının pupa ve ergin ağırlığı, ergin çıkış süresi ve yüzdesi ve ergin deformasyon yüzdelerine etkisini araştırmaktır. Bu çalışma 2018-2019 yılları arasında Sinop Üniversitesi, Fen Bilgisi Eğitimi, Biyoloji Laboratuvarında yapılmıştır. Denemeler 27 ± 2 ve 4ºC, %65 ± 5 bağıl nem ve devamlı karanlık şartlarında yapılmıştır. Larvalar oluşmaya başladıktan sonra tartılarak ağırlıklarına göre 3 gruba ayrılmıştır. Gruplara ayrılan larvalar ayrı petrilerde 5, 10, 20, 30 ve 60 gün olmak üzere 4ºC’ye soğuğa maruz bırakılmıştır. Sonuç olarak, soğukta depolama süresi arttıkça deformasyon yüzdesinin arttığı ve ergin çıkış yüzdesinin azaldığı görülmüştür. Ergin ağırlığı, pupa ağırlığı ve ömür uzunluğu ise larva ağırlıklarına ve soğuğa maruz kalma süresine bağlı olarak değişmiştir. Kitlesel üretim yapacak üreticiler veya araştırıcıların en iyi kaliteyi ve verimi alabilmek için larvaların büyüklüklerine dikkat etmeleri önerilmektedir.

Anahtar Kelimeler:

Soğuğa maruz bırakma, deformasyon oranı, böcek, böcek gelişimi, sıcaklık, Tenebrio molitor

Effects of cold storage on the developmental biology of Tenebrio molitor L., 1758 (Coleoptera: Tenebrionidae) at different larval stages

Being able to store insects at low temperature is important in the mass breeding of insects for commercial purposes. The aim of this study is to investigate the effect of cold storage on pupal and adult weight, adult emergence time and proportion and adult deformation proportion of different weight Tenebrio molitor L., 1758 (Coleoptera: Tenebrionidae) larvae. This study was conducted between 2018-2019 in the Biology Laboratory of Science Teaching Department, Sinop University. Trials were performed at 27 ± 2 and 4ºC, 65 ± 5% RH and continuous darkness. After the larvae began to form, they were weighed and divided into three groups according to their weight. They were exposed to 4ºC for 5, 10, 20, 30 and 60 d in separate Petri dishes. With increased cold storage time, the proportion of deformation increased and the proportion of adult emergence decreased. Adult weight, pupal weight and longevity depended on both larval weight and cold exposure time. In conclusion, it is recommended that mass producers or researchers pay attention to the size of the larvae and the cold exposure times to obtain the best quality product and high production efficiency.

Keywords:

Cold exposure, deformation rate, insect, insect development, temperature, Tenebrio molitor,

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