Erikte (cv. Black Amber) Naftalen Asetik Asit Uygulamasının Gövde Sürgünü oluşumunu Engelleme Üzerine Etkisi

Gövde sürgünleri boğum aralarının uzun ve gençlik kısırlığının uzun olması sebepleriyle, ticari meyve yetiştiriciliğinde mecbur kalınmadıkça bitkilerden uzaklaştırılmaktadır. Ayrıca özellikle ocak şeklinde yetiştiriciliği yapılan türlerde, budama maliyetlerinin ciddi oranda artmasına sebep olmaktadır. Bu çalışmada, birbirini takip eden 2015 ve 2016 yıllarında, farklı seviyelerde naftalen asetik asit (NAA) uygulamalarının, ‘Black Amber’ erik çeşidinde, dip sürgünü oluşumu üzerine olan etkileri incelenmiştir. Çalışma sonucunda, NAA uygulamasının dip sürgünü oluşumunu engelleyici etkide bulunduğu tespit edilmiştir. Ancak dozlar arasında herhangi bir farklılık tespit edilmemiştir. İki yıllık verilerin ortalamaları incelendiğinde, kontrol grubunda bitki başına düşen gövde sürgünü sayısı 9 iken, NAA uygulanan gruplarda bu değer 2’ye kadar düşmüştür. Yüksek dozda uygulanan NAA, çalışmanın ikinci yılında, dal yanıklıkları ve gummosise sebep olmuştur. Sonuç olarak, düşük dozda NAA uygulamasının iki yılda bir uygulanması, dip sürgünü oluşumunun azaltılması bakımından ümitvar bulunmuştur.

Anahtar Kelimeler:

Oksin, dallanma, gummosis

Effect of Naphthalene Acetic Acid Treatment on The Prevention of Trunk Sprout Formation in Plum (cv. Black Amber)

Trunk sprouts are removed from plants due to the long juvenile period and lengthy internodes. In addition, pruning costs are increased significantly, especially in the form of bush cultivation. In this study, the effects of naphthalene acetic acid (NAA) treatments at different levels on trunk sprout formation was investigated in ‘Black Amber’ plum cultivar were investigated in 2015 and 2016 years. As a result of the study, it was determined that NAA application had a preventive effect on the formation of trunk sprout. However, no difference was detected between NAA application doses. Analyzing the averages of two-year data, the number of trunk sprout per plant was approximately 9 in the control group while this value decreased to 2 in the NAA application groups. High NAA doses led to blighted branches and gummosis in the second year. As a result, biennial low NAA dose applications, have been found promising in terms of decreasing the trunk sprout formation.

Keywords:

Auxin, branching, gummosis,

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