Evaluation of selection indices and homeostatic effects in soybean populations

Byth, D. E.

doi:10.31274/rtd-180817-4480

Cited by 2 publications

(5 citation statements)

References 5 publications

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“…This was in agreement with results reported for protein and oil by Caldwell (1963) and Byth (1965) for genetic material closely related to that used in this study.…”

Section: Heritabilitysupporting

confidence: 83%

“…Estimates of expected genetic progress based on variance estimates agreed with those calculated* from actual gain for one soybean population (Hanson and Weber, 1962). Byth (1965) Gardner (1961), practicing mass selection for higher seed yield in corn, observed close agreement between actual gain per cycle of selection and that predicted based on nonestimated within-plot variance.…”

Section: Genetic Advance and Correlated Responsesupporting

confidence: 61%

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Mass Selection by Specific Gravity for Protein and Oil in Soybean Populations¹

Smith¹,

Weber

1968

Crop Science

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The effects of two cycles of mass selection by specific gravity were investigated in two hybrid soybean populations (Glycine max (L.) Merrill). Effects were measured on chemical composition and on six agronomic attributes. Selection was employed for high (Hi) and low (Lo) specific gravity within each population. A solution of glycerol and water was used to establish the desired specific gravity. Cycle 1 stratified the original populations into groups differing in chemical composition. Hi populations had a higher mean protein and lower mean oil content than the control populations. Lo populations were above average in oil and below average in protein content. Protein increased in the Hi populations and ranged from 0.3 to 1.2% and the decrease in protein in the Lo populations ranged from 0.6 to 1.5%. The increase in oil in the Lo populations ranged from 0.1 to 1.0% and thedecrease in oil in the Hi populations ranged from 0.0 to 0.9%.The effects of continued selection (cycle 2) varied among and within populations. In general, selections in cycle 1 were more effective than in cycle 2 for protein and oil.Specific gravity measures relative density; therefore, density of the seed was determined using a Bechman gaspycnometer. Average heritability for seed density was 69%. High seed density was associated with high protein, low oil and late maturity.

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“…This was in agreement with results reported for protein and oil by Caldwell (1963) and Byth (1965) for genetic material closely related to that used in this study.…”

Section: Heritabilitysupporting

confidence: 83%

Section: Genetic Advance and Correlated Responsesupporting

confidence: 61%

Mass Selection by Specific Gravity for Protein and Oil in Soybean Populations¹

Smith¹,

Weber

1968

Crop Science

View full text Add to dashboard Cite

show abstract

“…This was in agreement with results reported for protein and oil by Caldwell (1963) and Byth (1965) for genetic material closely related to that used in this study.…”

Section: Heritabilitysupporting

confidence: 93%

“…Estimates of expected genetic progress based on variance estimates agreed with those calculated* from actual gain for one soybean population (Hanson and Weber, 1962). Byth (1965) found that estimates of predicted genetic advances for two soybean crosses varied among environments. He questioned the reliability of these estimates unless some provision is made to estimate the genotype by environment interaction.…”

Section: Genetic Advance and Correlated Responsesupporting

confidence: 57%

See 1 more Smart Citation

Mass selection by specific gravity for protein and oil in soybean populations

Smith

View full text Add to dashboard Cite

Evaluation of selection indices and homeostatic effects in soybean populations

Cited by 2 publications

References 5 publications

Mass Selection by Specific Gravity for Protein and Oil in Soybean Populations¹

Mass Selection by Specific Gravity for Protein and Oil in Soybean Populations¹

Mass selection by specific gravity for protein and oil in soybean populations

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Evaluation of selection indices and homeostatic effects in soybean populations

Cited by 2 publications

References 5 publications

Mass Selection by Specific Gravity for Protein and Oil in Soybean Populations1

Mass Selection by Specific Gravity for Protein and Oil in Soybean Populations1

Mass selection by specific gravity for protein and oil in soybean populations

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Mass Selection by Specific Gravity for Protein and Oil in Soybean Populations¹

Mass Selection by Specific Gravity for Protein and Oil in Soybean Populations¹