Mutagenesis and selection for oligomycin resistance in soybean (Glycine max L. Merr) suspension culture cells

1995 ◽  
Vol 42 (2) ◽  
pp. 121-127
Author(s):  
Elizabeth A. Grabau ◽  
Regina Hanlon ◽  
Adam Pesce
Keyword(s):  
Glycine Max ◽  
Suspension Culture ◽  
Culture Cells ◽  
Glycine Max L ◽  
Selection For

scholarly journals Selection for later flowering in soybean (Glycine max L.Merrill) F2 populations cultivated under short day conditions

1999 ◽  
Vol 22 (2) ◽  
pp. 243-247 ◽  
Author(s):  
Antonio Carlos Baião de Oliveira ◽  
Carlos Sigueyuki Sediyama ◽  
Cosme Damião Cruz
Keyword(s):  
Glycine Max ◽  
Direct Selection ◽  
Juvenile Period ◽  
Selection Strategies ◽  
Expected Gain ◽  
Natural Photoperiod ◽  
Glycine Max L ◽  
Natural Temperature ◽  
Selection For ◽  
Delayed Flowering

Several different selection strategies were used to estimate expected gain of days to flowering and other related characters in two F2 soybean (Glycine max (L.) Merrill) populations. The sample originated from crosses of lines whose seeds do not contain the three lipoxygenase isozymes with the commercially cultivated IAC-12. IAC-12 is a gene carrier for an extended juvenile period. This study was conducted during the winter of 1994 in Viçosa, Minas Gerais. The plants were grown under natural photoperiod. One population was grown in a heated greenhouse, and the other in the field under natural temperature conditions. Lower temperatures early in the field planting caused a delay in flowering. Delayed flowering caused a broader amplitude in all characters evaluated, and resulted in higher selection gains for the field-grown plants than for the greenhouse-grown plants. Direct selection for number of flowering days proved to be efficient for improving this character in both populations. Gains were also obtained for other characters. Interactions of temperature and photoperiod and temperature and genotypes affected soybean flowering time and produced alterations in other correlated agronomic characters, including productivity.

SOYBEAN LEAF NITROGEN IN RELATION TO PHOTOSYNTHETIC RATE AND YIELD

1988 ◽  
Vol 68 (3) ◽  
pp. 793-795 ◽  
Author(s):  
B. R. BUTTERY ◽  
R. I. BUZZELL
Keyword(s):  
Glycine Max ◽  
Photosynthetic Rate ◽  
Leaf Nitrogen ◽  
Glycine Max L ◽  
Soybean Leaf ◽  
Selection For ◽  
Field Experimentation ◽  
Degree Of Association ◽  
Leaf N

Field experimentation with soybean (Glycine max (L.) Merr.) indicated that leaf N, photosynthetic rate (PA) and yield are correlated. The degree of association is not strong and heritability for leaf N is not markedly greater than for PA or yield. Therefore, selection for leaf N to improve PA and/or yield would not be an advantageous approach.Key words: Soybean, leaf N, photosynthesis, yield

EFFECT OF SELECTION FOR PROTEIN ON LENGTHS OF GROWTH STAGES IN Glycine max × Glycine soja CROSSES

1982 ◽  
Vol 62 (2) ◽  
pp. 293-298 ◽  
Author(s):  
L. R. ERICKSON ◽  
W. D. BEVERSDORF
Keyword(s):  
Glycine Max ◽  
Protein Content ◽  
Growth Stage ◽  
Seed Protein ◽  
Glycine Soja ◽  
Growth Stages ◽  
Seed Protein Content ◽  
Glycine Max L ◽  
The Mean ◽  
Selection For

The effect of selection for high seed protein content on plant development in soybeans (Glycine max (L.) Merr.) was investigated by comparing the lengths of growth stages of four selected populations with those of a nonselected control. Each population, grown at two locations in one season, was a composite of four crosses between G. max and its putative wild ancestor, Glycine soja Sieb. and Zucc. The growth stages were planting to emergence, emergence to flowering and flowering to maturity. The length of each growth stage was measured in soybean development units (SDU) and in days. On average, populations selected for protein alone required more SDUs from planting to emergence and from emergence to flowering and fewer SDUs from flowering to maturity than did the control. The mean temperature in the stage from flowering to maturity was negatively correlated with protein content in all populations. The correlations ranged from −0.22* to −0.34**.

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