Farklı Dalga Boylu LED Işıklarının Yeşil Yapraklı Bitkilerin Gelişimi Üzerindeki Etkileri

Yıl 2018, Cilt: 14 Sayı: 2, 105 - 114, 31.12.2018

Nuri Çağlayan , Can Ertekin

Öz

Işık yayan diyot (LED:
Light Emitting Diode) teknolojisinin yeni tip yarı iletken malzemelerin
ortaya çıkmasıyla sürekli şekilde gelişmesi, aydınlatmanın bitki büyümesi ve
gelişimi de dahil olmak üzere giderek artan sayıda yeni alanlarda uygulanmasını
mümkün kılmıştır. Son yıllarda, geleneksel aydınlatma sistemlerine alternatif
olarak, LED'in bitki morfogenezi için mükemmel bir yapay akıllı aydınlatma
kaynağı olduğu kanıtlanmıştır. LED aydınlatma çiçekler, sebzeler, meyveler,
aşılanmış fideler, mikro yeşillikler, algler, tıbbi ve aromatik vb. bitkilerin
üretilmesinde kullanılmakta ve önemli faydalar sunmaktadır. LED aydınlatma
teknolojisi, bitkisel üretimde verimliliği artırabilecek farklı dalga boylu
ışık kontrollü bir büyüme ortamı sağlayabilir. Ayrıca, yeni LED teknolojileri
sadece bitki üretimindeki verim ve kaliteyi arttırmakla kalmaz, aynı zamanda
bitkinin fizyolojik tepkilerini anlamaya yönelik yeni araştırmalara da olanak
tanır. Bu nedenle, çeşitli bitki büyüme ve geliştirme uygulamaları için LED
ışığının 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 bir
yanındaki araştırmacıların kayda değer deneyler yapmasına ve bu önemli konu
için bilgi literatürüne katkıda bulunmasına olanak tanır. Bu
çalışmada farklı dalga boylu LED ışıklarının spektral özellikleri açıklanmış, marul
ve bazı mikro yeşillikler üzerindeki bazı araştırma sonuçlarına yer verilmiştir.

Anahtar Kelimeler

Yapay aydınlatma, LED ışık kontrolü, marul

Kaynakça

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