ISSN:
1573-5060
Keywords:
male-sterility
;
maturity
;
protein
;
recurrent selection
;
seed yield
;
soybean
;
Glycine max
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary Progress was evaluated after four cycles of recurrent selection among S0 plants of Glycine max (L.) Merr. in which selection was either for maturity (MAT) or seed protein (PRO). The two populations, MAT and PRO, were developed from an initial population that was a combination of a line with 48.4% seed protein and two F2 populations segregating for male sterility. Intermating was facilitated by genetic male-sterility and the selection intensity was 20% in each cycle of the two populations. Selection for early maturity advanced the average maturity a significant 2.7±0.34 days cycle−1 and reduced seed yield a non-significant 9.1±2.95 g plant−1 cycle−1. Selection increased mean seed protein a significant 0.8±0.15 percentage points cycle−1 and decreased percent seed oil a non-significant 0.5±0.17 percentage points cycle−1. Correlation coefficients between seed protein and seed yield varied from 0.18 to −0.21 in the four cycles indicating plants with favorable combinations of seed yield and seed protein could be identified. Selection in these two populations would be effective for early maturity and for increased seed protein.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00036087
Permalink