Farklı dönem ve dozlarda naftalin asetik asit (NAA) uygulamalarının pamuğun (Gossypium hirsutum L.) verim ve bazı tarımsal özelliklerine etkisi

Year 2024, Volume: 28 Issue: 2, 335 - 344, 21.06.2024

Hasan Haliloğlu , Orhan Çoklu

https://doi.org/10.29050/harranziraat.1423585

Abstract

Bu çalışma farklı dönem ve dozlarda naftalin asetik asit (NAA) uygulamalarının pamuğun (Gossypium hirsutum L.) verim ve bazı tarımsal özelliklerine etkisini belirlemek amacıyla planlanmıştır. Deneme Şanlıurfa ili Harran Ovası koşullarında 2017 ve 2018 yılları yetiştirme sezonlarında tesadüf blokları deneme deseninde üç tekrarlamalı olarak kurulmuştur. NAA uygulamaları kontrol, taraklanma başlangıcı + çiçeklenme başlangıcı (T.B.+Ç.B.) dönemlerinde (15+15 g da-1, 30+30 g da-1, 45+45 g da-1), taraklanma başlangıcı + çiçeklenme doruğu (T.B.+Ç.D.) dönemlerinde (15+15 g da-1, 30+30 g da-1, 45+45 g da-1) ve çiçeklenme başlangıcı + çiçeklenme doruğu (Ç.B.+Ç.D.) dönemlerinde (15+15 g da-1, 30+30 g da-1, 45+45 g da-1) olacak şekilde uygulamalar yapılmıştır. Çalışmada, en yüksek kütlü pamuk verimi, meyve dalı sayısı, koza sayısı, koza kütlü pamuk ağırlığı Ç.B.30+Ç.D.30 uygulamasından, en yüksek erkencilik oranı Ç.B.45+Ç.D.45 uygulamasından ve en yüksek bitki boyu Ç.B.15+Ç.D.15 uygulamasından elde edilmiştir. Farklı dönemlerde bölünmüş dozlar şeklinde NAA uygulamalarının 100 tohum ağırlığı ve odun dalı sayısına herhangi bir etkisi olmamıştır. Çırçır randımanı ve lif indeksi özelliklerinde NAA uygulamalarının etkisinin olmadığı sonucuna ulaşılmıştır. Bu çalışmada; kütlü pamuk verimleri 435.43 kg da-1 ile 762.01 kg da-1 arasında değişmiştir. Harran Ovası koşullarında kütlü pamuk için Ç.B.30+Ç.D.30 uygulaması tercih edilmelidir.

Keywords

Pamuk, naftalin asetik asit, farklı dönem, doz, verim

Effect of naphthalene acetic acid (NAA) applications at different periods and doses on the yield and some agricultural characteristics of cotton (Gossypium hirsutum L.)

Abstract

This study was conductedito determine the effect of naphthalene aceticı acid application (NAA) on the yield and some agricultural properties of cotton. The experiment was established under the Harran Plain conditions of Şanlıurfa province in 2017 and 2018 growing seasons as randomized completeıblock design with threeıreplications. NAA applications were performed as follow, the control, at the beginning of squaring + the beginning of flowering (B.S.+B.F.) periods (150+150 g ha-1, 300+300 g ha-1, 450+450 g ha-1), at the beginning of squaring + the peak of flowering (B.S.+P.F.) (150+150 g ha-1, 300+300 g ha-1, 450+450 g ha-1), and at the beginnig of flowering + the peak of flowering (B.F.+P.F.) periods (150+150 g ha-1, 300+300 g ha-1, 450+450 g ha-1). As a result of the study, the highest number of sympodial branches, number of bolls, boll seed cotton weight and seed cotton yield were obtained from B.F.300 +P.F.300 g ha-1 application, the highest earliness ratio was obtained from B.F.450+P.F.450 g ha-1 application and the highest plant height was obtained from B.F.150+P.F.150 g ha-1 application. NAA applications in divided doses at different periods were’nt have effect on the 100 seed weight and number of monopodial branches. The effect of NAA applications on ginning outturn and fiber index properties was not seen. In this study, the seed cotton yield varied between 4354.3 kg ha-1 and 7620.1 kg ha-1. In Harran Plain conditions, B.F.300+P.F.300 g ha-1 application can be would rather for seed cotton yield.

Keywords

Cotton, Naphthalene acetic acid, different periods, dose, yield

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