Normal ve geç ekimlerde hasada yardımcı farklı kimyasal uygulamalarının pamuk (Gossypium hirsutum L.) bitkisinde verim ve verim unsurlarına etkisi

Year 2022, Volume: 26 Issue: 4, 443 - 457, 26.12.2022

Vedat Beyyavaş Abdulkadir Melik Suat Cun

https://doi.org/10.29050/harranziraat.1187473

Abstract

Bu çalışma, 2020 ve 2021 yılları yetiştirme sezonlarında normal ekim (5 Mayıs) ve geç ekimde (5 Haziran) pamukta (Gossypium hirsutum L.) farklı defoliantların verim ve lif teknolojik özelliklerine etkisini belirlemek amacıyla yapılmıştır. Çalışma, Şanlıurfa-Harran Ovası koşullarında Sultantepe köyünde tesadüf bloklarında bölünmüş deneme desenine göre 3 tekerrürlü olarak yürütülmüştür. Denemede bitki materyali olarak Fiona çeşidi kullanılmıştır. Defoliant uygulamalarından Finish Pro 765 (720 g l-1 Ethephon + 45 g l-1 Cyclanilide), Genesiss (200 g l-1(Carfentrazone-ethyl + 30 g l-1 Diuron), Ethephon (720 g l-1), Son Final (480 g l-1 Ethephon+60 g l-1 Cyclanilide) adlı kimyasallar normal ve geç ekimde kozaların %60’nın açtığı dönemde uygulanmıştır. Çalışmada, uygulama öncesi ve uygulama 7, 14 ve 21 gün sonrası yaprak sayısı (adet bitki-1), uygulama öncesi toplam koza sayısı (adet bitki-1), açmış koza sayısı (adet bitki-1) ve uygulama 7, 14 ve 21 gün sonrası açan koza sayısı (adet bitki-1), kütlü pamuk verimi (kg da-1), bitki boyu (cm) ve koza ağırlığı (g) incelenmiştir. Çalışmanın iki yılında da normal ekim (471.69 ve 530.95 kg da-1) geç ekime göre (457.02 ve 448.47 kg da-1) daha fazla kütlü pamuk verimi alınmıştır. Defoliant uygulamalarından Finish Pro 765 (720 g l-1 Ethephon + 45 gr l-1 Cyclanilide) uygulaması kütlü pamuk verimini arttırdığı, koza açtırma ve yaprak dökücü özelliklerinin iyi performans gösterdiği tespit edilmiştir.

Keywords

pamuk, defoliant, ekim zamanı, verim, açan koza

Supporting Institution

HÜBAP

Project Number

20112

The effect on yield and yield components of different harvest aid chemical applications in normal and late sowing cotton (Gossypium hirsutum L.)

Abstract

This study was carried out to determine the effects of different defoliants on yield and fiber technological properties in cotton (Gossypium hirsutum L.) in normal sowing (May 5) and late sowing (June 5). The study was carried out in the Sultantepe village of Eyyübiye district of Şanlıurfa province in the 2020-2021 growing seasons according to the randomized blocks of divided plots experimental design with 3 replications. From defoliant applications, Finish Pro 765 (720 g l-1 Ethephon + 45 g l-1 Cyclanilide), Genesiss (200 g l-1 (Carfentrazone-ethyl + 30 g l-1 Diuron), Ethephon (720 g l-1), Son Final (480 g) l-1 Ethephon+60 gr l-1 Cyclanilide) were applied in normal and late sowing when 60% of the bolls were opened. ın the study, plant height (cm), number of leaves before each application, number of leaves 7, 14 and 21 days after application (number plant-1), number of bolls before application (number plant-1), number of bolls bloomed before application (number plant-1). 7, 14 and 21 days after application, number of bolls (pieces plant-1), seed cotton yield (kg da-1), boll weight (g) and plant height (cm) values were investigated. It was determined that normal sowing (471.69 and 530.95 kg da-1) had higher seed cotton yield (kg da-1) than late sowing (457.02 and 448.57 kg da-1). It has been determined that Finish Pro 765 (720 g l-1 Ethephon + 45 g l-1 Cyclanilide) application, one of the defoliant applications, increases the seed cotton yield, and its boll opening and defoliating properties perform well.

Keywords

cotton, defoliation, sowing date, yield, open boll

Project Number

20112

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