This study was carried out to determine the responses of some new cotton (Gossypium hirsutum L.) lines to Verticillium wilt disease (disease agent is Verticillum dahliae Kleb.) and to enable the use of disease resistant or tolerant lines in future studies. The field trials were conducted at the trial field, Dicle University, Diyarbakir, Turkey in 2019. The trial field was a naturally contaminated with disease agent V. dahliae. Nine new advanced lines of cotton were used as material. Verticillium wilt resistant/tolerant cotton cultivars DP-396, BA-119 and STV-468 were used as control cultivars. Disease index and disease incidence (%) were examined in the study. The experiment was set up in a randomized block design with four replications. According to the variance analysis, significant results were obtained in terms of disease index and the rate of infection (%). Based on disease index values, the STV-468 standard genotype and Hat-1, Hat-2, Hat-3, Hat-4, Hat-5 and Hat-9 candidate lines were the most disease tolerant genotypes. In terms of disease incidence (%), the STV-468 and DP-396 standard genotypes and Hat-1, Hat-2, Hat-5, Hat-7 and Hat-9 advanced lines were determined as the most tolerant genotypes. It was concluded that the cotton genotypes STV-468, Hat-1, Hat-2, Hat-5 and Hat-9 can be used in V. dahliae infected cotton cultivation areas.
Genotip, çevre interaksiyonu diğer bitkilerde olduğu gibi ayçiçeği bitkisinde de verimi sınırlayan önemli bir
faktördür. Çoklu çevre şartlarında yetiştiriciliği yapılan yağlık ayçiçeği genotiplerinden elde edilen tane verimi bakımından
AMMI analizi kullanılarak genotiplerin stabilite durumları incelenmiştir. Bu çalışma; toplam on iki yağlık ayçiçeği genotipi
ile altı lokasyonda iki yıl (2016 ve 2017) süre ile tesadüf blokları deneme desenine göre dört tekrarlamalı olarak
yürütülmüştür. AMMI analizi ile en stabil genotipler ve özel çevrelere uyumlu genotipler belirlenmeye çalışılmıştır. AMMI
analizi ile kareler ortalamasının % 73.5 ile en fazla çevreden, % 19.5 ile interaksiyondan ve % 7.0 ile genotipten etkilendiği
tespit edilmiştir. Analiz sonuçlarına göre G3, G8 genotiplerinin oldukça stabil oldukları ve bu çeşitlerle birlikte G4, G6, G7,
G9 ve G10 genotipleri ortalamanın üzerinde bir verime, G1 genotipinin oldukça düşük verime sahip olduğu ve G9, G10 ve
G11’in stabilite çizgisinden oldukça uzakta konumlandıkları ve dolayısıyla stabil olmadıkları anlaşılmıştır. AMMI analizi ile
çevreler değerlendirildiğinde E5’in en elverişli ve yüksek verimli olduğu, bu çevre ile birlikte E10 ve E11’in ortalama verimin
üzerinde bir verim ile sonuçlandığı tespit edilmiştir. Ayrıca yapılan sektör analizinde ise G4 ve G6’nın E3, E4, E7, E10 ve
E11 çevrelerde, G8, G7 ve G1’nun E1, E2, E5, E6 E8 ve E12 çevrelerde, G2 ve G9’un ise sadece E9 çevresinde yüksek
performans sergiledikleri ve spesifik olarak bu çevrelerde önerilirken G1 ve G5 gibi diğer genotipler ise çevrelerle
ilişkilendirilmemiştir. Sonuç olarak AMMI analizi ile görsel olarak en stabil ve yüksek verimli genotipler belirlenmiştir.
The research was carried out in Adana conditions to determine the relati-onships between seed yield and yield components of some soybean ge-notypes depending on the years. In this research, which was carried out in 2015 and 2016 years, it was established with 5 soybean varieties and one variety candidate and according to Randomized Complete Block De-sign with 4 replications. In the combined analysis of variance, the year*genotype interaction was insignificant in terms of yield and yield components, while other sources of variation (year and genotype) were found to be statistically significant compared to P <0.01. Seed yield showed changed between 5782-6788 kg ha-1 in 2015 and 3597-4359 kg ha-1 in 2016. In the correlation between the examined traits; While there was a significant and positive relationship between seed yield and day to flowering, days to maturity, first pod height and oil rate, there was a significant and negative relationship between 1000 seed weight and the number of pods per plant. The varyans analysis showed that the inter-actions of year, genotype and year*genotype were significant in terms of seed yield and yield components of genotypes. As a result, Cinsoy, variety candidate 1 (Mona) and Blaze of varieties showed high performance in Adana conditions, and it was determined that the effect of the environment was higher than the effect of genotype and interaction in terms of seed yield and other traits. As a result of this study, the variety candidate 1 was registered under the name Mona. In addition, it was concluded that Cinsoy, Blaze and newly registered Mona varieties can be recommended for main crop soybean cultivation in Adana conditions.
The genotype*environment interaction was investigated in terms of yield and yield components of rapeseed varietys and candidate varietys depending on the years the research was carried out in Tekirdağ conditions. This research; In 2014-2015 and 2015-2016, 9 rapeseed cultivars and cultivar candidates were carried out in Tekirdağ location with 4 replications according to the Randomized Complete Block Design. In the analysis of variance, significant differences were found at the level of P < 0.01 and P < 0.05 in terms of yield and yield components in terms of genotype, year and year*genotype interaction statistically. According to the results of the analysis, the average yield of the genotypes varied between 2854-5356 kg ha-1, and the average of the years ranged between 3356-5121 kg ha-1. NK Caravel, candidate 1 (DK Ekstorm), candidate 3 (DK Expower) and candidate 4 (NK Linus) varieties have come to the fore in rapeseed cultivation in Tekirdağ conditions. The best results in terms of seed yield and yield components were obtained from NK Caravel, candidate 4 (NK Linus) and PR44W29 varietys. As a result, year, genotype and year*genotype interactions were examined in terms of yield and yield components of cultivars in rapeseed cultivation, and it was concluded that NK Caravel, candidate 4 (NK Linus) and PR44W29 cultivars showed high performance in Tekirdağ conditions, and the effect of the environment was higher than the effect of genotype.
Amaç: Araştırmada lokasyon ve yıllara bağlı olarak ikinci üründe soya çeşitlerinin tane verimi performansları bakımından genotip*çevre etkileşimleri incelenmiştir.
Materyal ve Yöntem: Bu araştırma; 2016 ve 2017 yıllarında 9 adet soya çeşidi ile Adana ve Hatay lokasyonlarında ikinci ürün yetiştiriciliğinde 4 tekrarlamalı olarak tesadüf blokları deneme desenine göre kurulmuştur.
Araştırma Bulguları: Yapılan birleşik analizde yıl ve yıl*lokasyon interaksiyonu önemsiz diğer varyasyon kaynakların (yıl*genotip, lokasyon*genotip, lokasyon, genotip, yıl*lokasyon*genotip) P
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