Genç Satsuma Mandarini (Citrus unshlu Marc.) Ağaçlarında Klmyasal Gübrelerln Meyve Kalitesine Etkisi

Year 1989, Volume: 2 Issue: 1, 91 - 104, 01.06.1989

A. Turgut Köseoğlu Habil Çolakoğlu

Abstract

Bu çalışma, genç Satsuma mandarini (Citrus ınshiu Marc.) ağaçlarında azotlu, fosforlu ve potasyumlu gübrelerin meyve kalitesi özelliklerine etkilerini araştırmak amacıyla yapılmıştır.
1970 yılında, üç yapraklı (Poncirus trifoliata Raf.) anacı üzerine aşılı Satsuma mandarini fidanları 5 x 6 m mesafe ile dikilmiştir. 1979-1982 yılları arasında 4 yıl süre ile her yıl artan dozlarda azotlu, fosforlu ve potasyumlu gübreler uygulanarak yürütülen denemenin son yılında meyve örnekleri alınarak, söz konusu gübrelerin meyve kalitesi özelliklerine etkisi incelenmiştir.
Araştırma sonuçları aşağıdaki gibi özetlenebilir;
1. Artan dozlarda kullanılan azotlu ve potasyumlu gübreler meyve çapını, meyve boyunu, meyve ağırlığını ve kabuk kalınlığını arttırmıştır.
2. Eriyebilir kuru madde miktarı üzerine azotlu gübreler azaltıcı yönde, potasyumlu gübreler ise arttırıcı yönde etkili olmuşlardır. Ayrıca potasyumlu gübreler meyve asitliğini de arttırmıştır.
3. Fosforlu gübrelerin meyvenin dış ve iç kalite özellikleri üzerine önemli bir etkisi olmamıştır.

Keywords

Satsuma Mandarini, Citrus unshlu Marc., Poncirus trifoliata Raf.

The Effect of Chemical Fertilizers on Fruit Quality of Young Satsuma Mandarins (Citrus unshtu Marc.)

Abstract

This research was conducted in order to find out the effect of N, P and K fertilizations on fruit quality of Satsuma mandarins (Citrus unshiu Marc.).
The young trees were grafted on trifoliata rootstocks (Poncirus trifoliata Raf.) and planted in 5 x 6 m distances in 1970. The fertilizers were applied for four years between 1979-1982. Dosages of the fertilizer were increased regularly each year. The fruit samples were taken in last year for determination the effect of fertilizers on fruit quality.
Results of the research can be summarized as follow;
1. N and K applications increased the fruit diameter, fruit length, fruit weight and rind thichness,
2. N applications decreased total soluble solid contents while K applications increased it. Meanwhile the K applications increased acidity of fruit,
3. The effect of P applications was found insignificant on the external and internal fruit quality characteristic.

Keywords

Satsuma Mandarins, Citrus unshtu Marc., Poncirus trifoliata Raf.

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