jams Tarım Makinaları Bilimi Dergisi 1306-0007 2651-4230 Tarım Makinaları Derneği Farklı Dalga Boylu LED Işıklarının Yeşil Yapraklı Bitkilerin Gelişimi Üzerindeki Etkileri Çağlayan Nuri Ertekin Can 12 31 2018 14 2 105 114 05 23 2018 11 07 2018 Copyright © 2005, Tarım Makinaları Bilimi Dergisi 2005 Tarım Makinaları Bilimi Dergisi

Işık yayan diyot (LED:Light Emitting Diode) teknolojisinin yeni tip yarı iletken malzemelerinortaya çıkmasıyla sürekli şekilde gelişmesi, aydınlatmanın bitki büyümesi vegelişimi de dahil olmak üzere giderek artan sayıda yeni alanlarda uygulanmasınımümkün kılmıştır. Son yıllarda, geleneksel aydınlatma sistemlerine alternatifolarak, LED'in bitki morfogenezi için mükemmel bir yapay akıllı aydınlatmakaynağı olduğu kanıtlanmıştır. LED aydınlatma çiçekler, sebzeler, meyveler,aşılanmış fideler, mikro yeşillikler, algler, tıbbi ve aromatik vb. bitkilerinüretilmesinde kullanılmakta ve önemli faydalar sunmaktadır. LED aydınlatmateknolojisi, bitkisel üretimde verimliliği artırabilecek farklı dalga boyluışık kontrollü bir büyüme ortamı sağlayabilir. Ayrıca, yeni LED teknolojilerisadece bitki üretimindeki verim ve kaliteyi arttırmakla kalmaz, aynı zamandabitkinin fizyolojik tepkilerini anlamaya yönelik yeni araştırmalara da olanaktanır. Bu nedenle, çeşitli bitki büyüme ve geliştirme uygulamaları için LEDışığının yeni kontrol seviyeleri araştırılmakta, ışığın değeri artırılmakta,diğer yandan LED aydınlatma ürünlerinin maliyeti azalmaya devam etmektedir.Yapılandırılabilir LED aydınlatma artık nispeten ucuzdur ve dünyanın dört biryanındaki araştırmacıların kayda değer deneyler yapmasına ve bu önemli konuiçin bilgi literatürüne katkıda bulunmasına olanak tanır. Buçalışmada farklı dalga boylu LED ışıklarının spektral özellikleri açıklanmış, marulve bazı mikro yeşillikler üzerindeki bazı araştırma sonuçlarına yer verilmiştir.

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