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STABILITY ANALYSIS OF SOME SOYBEAN GENOTYPES USING PARAMETRIC AND NON PARAMETRIC METHODS IN MULTI-ENVIRONMENTS

Pinar CUBUKCU , Mehmet KOCATURK , Emre ILKER , Abdullah KADIROGLU , Yasemin VURARAK , Yesim SAHIN , Mehmet KARAKUS, Umran Akgun YILDIRIM , Abdurrahim Tanju GOKSOY , Mehmet SINCIK

Abstract

Seed yields of 14 soybean genotypes were evaluated in four locations i.e. Adana, Şanlıurfa, Antalya and İzmir under second crop conditions through summer seasons from 2014 to 2016. The study aims to estimate the stability parameters in terms of seed yield of 14 soybean genotypes by using different stability analysis methods across eleven environmental conditions and to study interrelationships among these stability methods. The analysis of variance for seed yield revealed that the genotypes and the environments as well as the genotype x environment interactions (GEI) were statistically significant at P<0.01. Environmental effects were contributed 51.04% to the total sum of squares whereas GEI and genotype effects were 20.8% and 2.59%, respectively. According to most stability methods, BATEM 223, BATEM 306, BATEM 317 and KASM 02 were determined to be stable genotypes. These genotypes demonstrated superior adaptability with high yield performances in many environments. Results of correlation analysis indicated that seed yield was positively and significantly correlated with Di 2 (P><0.01), Si (6) (P><0.05) and TOP (P><0.01) and showed a negative and significant correlation with Pi (P><0.01) and RS (P><0.01). In addition, the coefficient of regression (bi) was positively significant associated with CVi, αi (P><0.01) and Ri 2 (P><0.01. Environmental effects were contributed 51.04% to the total sum of squares whereas GEI and genotype effects were 20.8% and 2.59%, respectively. According to most stability methods, BATEM 223, BATEM 306, BATEM 317 and KASM 02 were determined to be stable genotypes. These genotypes demonstrated superior adaptability with high yield performances in many environments. Results of correlation analysis indicated that seed yield was positively and significantly correlated with Di 2 (P<0.01), Si (6) (P<0.05) and TOP (P<0.01) and showed a negative and significant correlation with Pi (P<0.01), and RS (P<0.01), In addition, the coefficient of regression (bi) was positively significant associated with CVi, αi (P<0.01), and Ri 2 (P<0.05).

Keyword: Adaptation, Glycine max, genotype x environment interaction, stability, yield ,

Effects of Different Water Stress Levels on Biomass Yield and Agronomic Traits of Switchgrass (Panicum virgatum L.) Varieties under Semi-Arid Conditio

Erdal GONULAL, Suleyman SOYLU, Mehmet SAHIN

Abstract

A field experiment was conducted in the Wielkopolska region at the Gorzyń Research Station, Poland (52.34°N, 15.54°E) in Central Europe. The study was conducted over a 3-year period (2017, 2018, 2019) as a two-factorial design with four replications in the RCBD. The aim of the research was to determine the effect of the cultivar (‘Bolero’, ‘Tytan’) and the inoculation (Nitragina–seeds inoculation, Nitroflora I–seeds inoculation, Nitroflora II–soil inoculation, HiStick® Lupin–seeds inoculation) on plant development, seeds chemical composition and yielding of narrow-leaved lupin. The weather conditions and experimental factors significantly influenced on productivity of narrow-leaved lupin ‘Tytan’. Drought during the growing season reduced seeds and protein yields. After inoculation of HiStck the seeds yield was significantly greater by 12.4% (p < 0.01) and the protein yield after application of Nitroflora I or HiStick by 13.9% (p < 0.01) and 19.2% (p < 0.01), respectively. Correlation coefficients showed strong relations between number of pods and seeds per plant in both cultivars regardless of the inoculation variant, however the strongest relations in both cultivar were proved on HiStick treatment.

Keyword: Biological nitrogen fixation, chemical composition, legumes, protein efficiency, yielding

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STABILITY ANALYSIS OF SOME SOYBEAN GENOTYPES USING PARAMETRIC AND NON PARAMETRIC METHODS IN MULTI-ENVIRONMENTS

Abstract

Effects of Different Water Stress Levels on Biomass Yield and Agronomic Traits of Switchgrass (Panicum virgatum L.) Varieties under Semi-Arid Conditio

Abstract

The Journal includes only the original research papers about breeding and genetics, agronomy, physiology, forage crops, medicinal and aromatical plants, biotechnology and utilization.

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