Viognier (Vitis vinifera L.) Üzüm Çeşidinde Farklı Sıra Yönleri ve Salkım Seyreltme Uygulamalarının Omcaların Güneşlenme Durumları ve Fenolojik Gelişme Üzerine Etkileri

Öz

Araştırma; farklı dikim yönü ve salkım seyreltme uygulamalarının, omcaların fenolojik gelişme ve güneşlenme durumu üzerine etkilerini belirlemek amacıyla; 2011 yılında Şarköy ilçesinde 40°38’13,27”K ve 27°03’38,96”D enlem ve boylamlarında, ortalama 198 m rakımda, 5 yaşlı Viognier/420A omcalarında yürütülmüştür, tek kollu kordon royat terbiye şeklinde, 2.20×1.25 m aralık ve mesafe ile dikilmiştir. Bölünmüş parsellerde iki faktörlü faktöriyel deneme deseni’ne göre kurulmuştur. Ana parsel uygulamalarında her bir parsel bir dikim yönü konusunu (K-G ve D-B); her alt parsel de bir salkım seyreltme uygulamasını (SSU); alt salkımların alınması (ASA), üst salkımların alınması (ÜSA), karışık salkım alınması (%50 alt+%50 üst) (KSA), Kontrol (hiç salkım alınmamış) (K) konusu oluşturmuştur. Sonuç olarak K-G doğrultusunda dikimin D-B doğrultusunda dikime göre kısmen daha olumlu sonuçlar verdiği ve K-G doğrultusundaki omcaların her iki tarafının güneş ışınlarından daha eşit yararlandığı söylenebilir. SSU’larının da yetiştiricilikte karşılaşılan sorunun çözümüne yönelik olarak seçilmesinin yerinde olacağı sonucuna varılmıştır. Ayrıca 2011 vejetasyon periyodunun uzun yıllar ortalamasından düşük olduğu; bu nedenle olgunlaşmanın geciktiği görülmüştür (263. gün, hasat).

Anahtar Kelimeler

• Viognier üzüm çeşidi
• salkım seyreltme
• dikim yönü
• güneşlenme durumu
• fenoloji

Different Cluster Thinning Applications and Row Orientation Effect on Sunlight Transmission and Phenology in cv. Viognier (Vitis vinifera L.)

Öz

This research has been conducted during the 2011 vegetation period in Şarköy district on Viognier/420A 5 years old at a vineyard with 198 m altitude, 40°38’13,27”N latitude and 27°03’38,96”E longitude in order to identify the effects of various row orientation and cluster thinning practices on efficiency and quality. Grapevines are 2,20×1,25 m spaced and trained single cordon royat system. Research is setup in divided parcels according to the two-factor factorial design pattern. Main parcel applications involved two row orientation; N-S (North-South), E-W (East-West). Each sub parcel ones, however, included cluster thinning applications, LCT (lower cluster thinning), UCT (upper cluster thinning), MCT (mixed cluster thinning), C (control/no cluster thinning). As a result, planting to N-S row orientation has partially more positive results than E-W row orientation and N-S row orientation has been found optimal for vineyards to insure consistent canopy light interception. In order to solve the problems which is encountered in vineyard; LCT, UCT or MCT application would be selected. In addition; 2011 vegetation period is shorter than for many years average, for that reason maturation is delayed (harvest in 263th day).

Anahtar Kelimeler

• cv. Viognier
• cluster thinning
• row orientation
• sunlight transmission
• phenology

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