Fifty‐Eight Years of Genetic Improvement of Short‐Season Soybean Cultivars in Canada

Voldeng, H. D.; Cober, Elroy R.; Hume, D. J.; Gillard, Chris L.; Morrison, Malcolm J.

doi:10.2135/cropsci1997.0011183x003700020020x

Cited by 137 publications

(171 citation statements)

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“…This indicated that past kabuli chickpea breeding efforts in Ethiopia have resulted in an average grain yield increment of 445.67 kg ha -1 when the local check variety, DZ-10-4, was used as a reference (Table 3). Similarly, previous work on durum wheat (Waddington et al, 1987), Australian spring wheat (Perry & D'Antuono, 1989), soybean (Voldeng et al, 1997), and tef (Teklu, 1998) reported an increase in yield potential of the tested varieties over years of variety release.…”

Section: Resultssupporting

confidence: 64%

Breeding Progress for Grain Yield and Yield Related Characters of Kabuli Chickpea (Cicer arietinum L.) in Ethiopia Using Regression Analysis

Tadesse¹,

Funga²,

Fikre³

et al. 2018

JAS

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The genetic progress in seed yield and yield related characters of 10 kabuli chickpea varieties released by the Ethiopian Chickpea Crop Improvement Program from 1974 to 2017 was assessed during the main cropping season. The varieties were evaluated in the Randomized Complete Block design at Debrezeit Agricultural Research Center experimental research farm. The overall increase in seed yield over the local check, DZ-10-4, was estimated to be 739 kg/ha (38.9%). On station grain yield increased from 1900 to 3250 kg/ha during the last 43 years and the overall increase in seed yield of the Arerti variety over the oldest variety DZ-10-4 was estimated to be 1350 kg/ha or 71.1%. Based on the regression analysis, the estimated average annual rate of increase in grain yield potential was 10.87kg/ha/year with an annual relative genetic change of 0.57%/year. Genotypic change was an important source for increased grain yield potential during the studied period. Positive genetic gains were observed for the yield traits (grain yield and yield components). The average cumulative gains over 43 years of breeding was, therefore, 445.67 kg (23.37%) for seed yield, and 30.26 g for hundred seeds weight (297.7%). Hundred seed weight revealed the most dramatic response to breeding for the last 43 years. It is, therefore, strategically advisable that breeding efforts in the future should give due attention to yield related traits of kabuli chickpea varieties.

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Section: Resultssupporting

confidence: 64%

Breeding Progress for Grain Yield and Yield Related Characters of Kabuli Chickpea (Cicer arietinum L.) in Ethiopia Using Regression Analysis

Tadesse¹,

Funga²,

Fikre³

et al. 2018

JAS

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“…Improving the production potential of soybean cultivars is one of the main objectives of all genetic improvement programs carried out in the country. In general, soybean productivity is inversely correlated to the protein content of grains (Voldeng et al, 1997;Wilcox and Guodong, 1997). Protein and oil concentrations in the seed may be genetically controlled but those components are highly influenced by the environment (Wilcox, 1985;Burton, 1989).…”

Section: Introductionmentioning

confidence: 99%

Influence of genotype on protein and oil concentration of soybean seeds

Santos

Pípolo

Faria

et al. 2010

Braz. arch. biol. technol.

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“…Voldeng et al (1997), no entanto, afirmaram que de 1976 a 1992, o aumento do rendimento de grãos das cultivares cultivadas naquele país foi de 0,7% ao ano, enquanto o nível de proteína foi reduzido em 4 g/kg/ano e o teor de óleo aumentou em 4 g/kg/ano.…”

Section: Introductionunclassified

Teor de óleo e de proteína em genótipos de soja desenvolvidos após 1990

Bonato

Bertagnolli

Lange³

et al. 2000

Pesq. agropec. bras.

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RESUMO -O objetivo deste trabalho foi verificar se as cultivares de soja lançadas após 1990 para o Estado do Rio Grande do Sul continham, nos grãos, teores de proteína e de óleo diferentes dos contidos nos grãos das cultivares em uso anteriormente a esse ano. Na safra de 1996/97, foi realizado um estudo envolvendo genótipos produzidos em três locais do Rio Grande do Sul. O teor de óleo foi determinado pelo método de Soxlet, e o de proteína, pelo método de Kjeldahl. A maior parte das cultivares lançadas entre 1991 e 1996 apresentou menor teor de proteína e maior teor de óleo do que as mais antigas. A utilização das cultivares União e Industrial como genitores deve ter contribuído para o menor teor de proteína apresentado pelas cultivares. As linhagens experimentais apresentaram teor de proteína tão elevado quanto o das cultivares em cultivo desde antes de 1990, o que pode ter sido causado pela mudança de genitores. As correlações fenotípicas indicaram que existe uma associação negativa significativa somente entre os teores de óleo e de proteína.Termos para indexação: Glycine max, correlação genética, composição química. OIL AND PROTEIN CONTENT IN SOYBEAN GENOTYPES DEVELOPED AFTER 1990ABSTRACT -The objective of this work was to investigate whether oil and protein contents of soybean cultivars released after 1990 for the State of Rio Grande do Sul, Brazil, differ from the contents found in cultivars in use before that year. A study was carried out in 1996/97 involving cultivars recommended at different periods, produced at three sites of that state. Oil content was determined by the Soxlet method, and protein content was determined by the Kjeldahl method. It was found that most cultivars released between 1991 and 1996 showed lower protein content and higher oil content than older cultivars. The use of the União and Industrial cultivars as parents should be one of the main reasons to the lower protein content in these cultivars. The change of parents provided a recuperation in the protein content of new lines up to the level found in the cultivars released before 1990. Phenotypical correlations indicated that there is a significant negative association between oil and protein contents only.

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Fifty‐Eight Years of Genetic Improvement of Short‐Season Soybean Cultivars in Canada

Cited by 137 publications

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Breeding Progress for Grain Yield and Yield Related Characters of Kabuli Chickpea (Cicer arietinum L.) in Ethiopia Using Regression Analysis

Breeding Progress for Grain Yield and Yield Related Characters of Kabuli Chickpea (Cicer arietinum L.) in Ethiopia Using Regression Analysis

Influence of genotype on protein and oil concentration of soybean seeds

Teor de óleo e de proteína em genótipos de soja desenvolvidos após 1990

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