Tuzlu-Alkali Meralarda Yaygın Olarak Yetişen Çorak Çimi (Puccinellia distans) ve Sahil Ayrığı (Aeluropus littoralis) Bitkilerinin Farklı Gelişme Dönemlerindeki Besin İçeriklerinin Belirlenmesi

Bitki yetiştiriciliği ve çeşitliliğini kısıtlayan özellikle iklim ve topraktan kaynaklanan stres koşulları bitkilerde önemli verim ve kalite kayıplarına neden olabilmektedir. Oysa ekstrem ekolojik koşullara uyum sağlayabilen halofit türler üretim güçlerini devam ettirerek, yeter miktar ve kalitede yem materyali üretebilmektedir. Bu araştırma, hiçbir kültür bitkisinin yetiştirilemediği aşırı tuzlu-alkali otlak alanlarında yaygın olarak yetişen halofit Puccinellia distans ve Aeluropus littoralis türlerinin farklı gelişme dönemlerinde sahip oldukları besin değerlerini belirlemek ve incelenen kalite özellikleri açısından ruminantların beslenmesinde yem kaynağı olarak değerlendirilip değerlendirilemeyeceğini ortaya koymak amacıyla yürütülmüştür. Bu amaçla vejetatif, çiçeklenme ve tohum olgunlaştırma döneminde mevcut türlerin sahip oldukları ham protein, nötr çözücülerde çözünemeyen lif, asit çözücülerde çözünemeyen lif, kuru madde sindirilebilirliği, sindirilebilir enerji, metabolik enerji ve nispi yem değerleri tespit edilmiştir. Araştırma Iğdır coğrafyasında iki yıl süre ile (2015-2016) korunan 4 dekarlık bir alanda tesadüf bloklarında bölünmüş parseller deneme desenine göre 3 tekerrürlü olarak yürütülmüştür. Araştırma sonucunda incelenen tüm parametrelerin türlere (nötr çözücülerde çözünemeyen lif hariç), fenolojik dönemlere ve yıllara bağlı olarak önemli farklılıklar gösterdiği ortaya çıkmıştır. Sonuç olarak, A. littoralis gelişme dönemlerine bağlı olarak P. distans türüne göre daha yüksek kalitede yem materyali sağlayabildiği ve tuzlu mera alanlarında otlayan ruminatlar için iyi bir alternatif yem kaynağı olabileceği ortaya konulmuştur.

Anahtar Kelimeler:

Çorak çimi, Çorak meralar, Fenolojik dönemler, Sahil ayrığı, yem kalitesi

Determination of Nutritional Contents at the different Development Stages of Puccinellia distans and Aeluropus littoralis Commonly Growing in Saline-Alkaline Pastures

Stress conditions, especially due to climate and soil, which limit plant growing and diversity can cause important yield and quality losses in plants. However, halophytic species which can adapt to extreme ecological conditions can produce feed material at adequate amounts and quality by continuing to production potential. Our aim was to determine the forage qualities at different developmental stages of Puccinellia distans and Aeluropus littoralis, halofite species, which grow extensively in excessive-salted and alkaline pastures, and to reveal whether they can be evaluated as feed for ruminants in terms of the quality characteristics examined. For this purpose, crude protein, neutral detergent fibre, acid detergent fibre, dry matter digestibility, digestible energy, metabolic energy and relative feed values were determined at vegetative, flowering and seed maturation stages of the studied species. The experiment was established in randomized blocks with three replications according to the Split Parsel trial design on a protected 4 da pasture in Igdir conditions between the years of 2012-2013. As a result of the research, all the parameters examined showed significant differences depending on species (except for neutral detergent fibre), phenological stages and years. As a result, it was revealed that A. littoralis can be provided a higher quality feed than P. distans depending on development stages and, also be a good alternative source of fodder for ruminant in saline-grazing.

Keywords:

Weeping alkaligrass, coast aeluropus, arid grazings, phenological stages, forage quality,

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