Stability Analysis for Grain Yield and Quality Parameters in QPM (Zea mays L.) Inbred Line Crosses

ABSTRACT: The objective of this study was to determine the necessary number of experiments to analyze the adaptability and stability of maize cultivars (Zea mays L.) using the Lin and Binns method. Grain yield data extracted from 63 maize cultivar trials were used. Trials were divided in six groups of experiments, according to the cycle (early and super early) and the agricultural year (2002/2003, 2003/2004, and 2004/2005). In each group, from the set of all experiments (reference file) new data files were formed by combinations in groups of 2, 3, 4, ..., n-1 experiments, with a total of 10,683 files. For each file, the estimation of the adaptability and stability parameter (Pi) of the Lin and Binns method was calculated. To verify the degree of association of the estimates of Pi obtained with the combinations of experiments and with all the experiments (reference), Spearman correlation coefficient (r) was used. Number of experiments giving values of r≥0.80 in 100% of the combinations was considered sufficient. Seven experiments sufficed for the analysis of adaptability and stability of maize cultivars by the method of Lin and Binns.

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Influence of fungicide treatments on disease severity caused by Zymoseptoria tritici, and on grain yield and quality parameters of bread-making wheat under Mediterranean conditions

European Journal of Plant Pathology ◽

10.1007/s10658-014-0527-1 ◽

2014 ◽

Vol 141 (1) ◽

pp. 99-109 ◽

Cited By ~ 10

Author(s):

Sara Rodrigo ◽

Belén Cuello-Hormigo ◽

Conseição Gomes ◽

Oscar Santamaria ◽

Rita Costa ◽

...

Keyword(s):

Grain Yield ◽

Disease Severity ◽

Quality Parameters ◽

Bread Making ◽

Zymoseptoria Tritici ◽

Yield And Quality ◽

Grain Yield And Quality ◽

Mediterranean Conditions

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Selenium biofortification in bread-making wheat under Mediterranean conditions: influence on grain yield and quality parameters

Crop and Pasture Science ◽

10.1071/cp14061 ◽

2014 ◽

Vol 65 (4) ◽

pp. 362 ◽

Cited By ~ 6

Author(s):

Maria J. Poblaciones ◽

Oscar Santamaría ◽

Teodoro García-White ◽

Sara M. Rodrigo

Keyword(s):

Grain Yield ◽

Quality Parameters ◽

Milling Process ◽

Temperate Climate ◽

Sodium Selenate ◽

Bread Making ◽

Wheat Field ◽

Yield And Quality ◽

Grain Yield And Quality ◽

Mediterranean Conditions

The diet of millions of people around the world is deficient in selenium (Se). Bread-making wheat has been successfully used in Se biofortification programs under temperate climate to remedy Se deficiency. However, its suitability under Mediterranean conditions and its effect on the grain yield and quality parameters are not well known. In a wheat field in south-western Spain, two foliar Se fertilisers (sodium selenate and sodium selenite) were applied at four application rates (0, 10, 20, 40 g ha–1) in 2010–11 and 2011–12. Results showed a strong and linear relationship between total Se in grain and Se dose for both fertilisers, although selenate was much more efficient. A dose of 10 g sodium selenate ha–1 was able to increase significantly the Se in grain to close to the recommended values, although Se loss of 28% during the milling process might be expected. Grain yield was not negatively affected by fertilisation, but grain protein and dry gluten were slightly negatively affected, but only in the dry year. Alveograph parameters were either not affected or slightly favoured by Se fertilisation in any studied year. Bread-making wheat is a good candidate to be included in biofortification programs under semi-arid Mediterranean conditions.

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Effect of phosphoric fertilizers as a source of sulphur on malt barley total and technological grain yields

Plant Soil and Environment ◽

10.17221/2289-pse ◽

2008 ◽

Vol 53 (No. 9) ◽

pp. 395-402 ◽

Cited By ~ 1

Author(s):

J. Potarzycki ◽

W. Grzebisz

Keyword(s):

Grain Yield ◽

Nitrogen Concentration ◽

Total Yield ◽

High Sensitivity ◽

Quality Parameters ◽

Grain Yields ◽

Yield And Quality ◽

P Fertilizer ◽

Grain Yield And Quality ◽

Malt Barley

Malt barley production requires a technology increasing nitrogen use efficiency, because of a high sensitivity of barley total grain yield and quality parameters to external growth factors. In the conducted study an effect of two P fertilizers on the background of N application on total and technological grain yields were studied. The highest total grain yield was harvested on plots fertilized with 60 kg N/ha, irrespective of the P fertilizer type. However, the technological grain yield showed a high year-to-year variability; the highest was recorded in 2001 on the plot fertilized with 60 kg N/ha and the P-PAPR fertilizer. The N and S concentrations and N:S ratios in immature grains at harvest were used to evaluate both yield types. Nitrogen concentration in the final total yield allowed making yields prognosis with the highest probability. The maximum yields of technological malt barley were attainable provided that total S concentration in immature grains at harvest was above 0.23% and the N:S ratio was narrower than 8.0.

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