EurekaMag.com logo
+ Site Statistics
References:
53,623,987
Abstracts:
29,492,080
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

Genetic control of flowering in determinate soybean genotypes under diverse photoperiods



Genetic control of flowering in determinate soybean genotypes under diverse photoperiods



Revista Brasileira de Genetica 17(2): 187-195



Four soybean parents, including three with a classical type of response to photoperiod (BR85-29009, FT-2 and BR-13) and one long juvenile trait carrier (OC-8), were crossed in all combinations, including reciprocals, to obtain six sets of F2, F3 and F7 generations. The flowering response to photoperiodic variation and the genetic mechanisms controlling this response were studied. Day length variation was obtained by sowing the materials from September to December at Londrina, Parana (23 degree 22'S latitude). The genetic models fitted to the means and variances of the generations indicated the predominance of additive effects controlling days to flowering. Significant dominance, epistasis and genotype times environmental effects were detected. No particular model was found to be associated with crosses where one of the parents was a carrier of the long juvenile trait. The predominant response of F7 lines to day length changes depended on the cross. Genes controlling classical and long juvenility combined freely; all crosses produced F7 individuals with classical or late flowering under short day conditions response to photoperiod. Intermediate responses between the typical classical and typical long juveniles were also observed in all cases. Such responses are only possible through the recombination of various genes of a single system.

(PDF 0-2 workdays service: $29.90)

Accession: 002390543

Download citation: RISBibTeXText



Related references

Genetic analysis of growth of determinate soybean genotypes under three photoperiods. Revista Brasileira de Genetica 16(3): 713-748, 1993

Characterization of flowering response to photoperiod in diverse soybean genotypes. Crop Science 24(4): 659-662, 1984

Characterization of flowering response to photoperiod in diverse soybean glycine max genotypes. Crop Science 24(4): 659-662, 1984

Effect of hastened flowering on seed yield and dry matter partitioning in diverse soybean genotypes. Crop Science 25(6): 995-998, 1985

Effect of hastened flowering on seed yield and dry matter partitioning in diverse soybean glycine max genotypes. Crop Science 25(6): 995-998, 1985

Path coefficient analysis of flowering time in diverse genotypes of soybean as influenced by temperature and day length. Indian Journal of Agricultural Sciences 47(10): 498-502, 1977

Day to flower, day to complete flowering and flowering period of Thai soybean varieties as affected by extended photoperiods. Kasetsart Journal 20(3): 256-265, 1986

Soybean seed oil content: Genetic control under different photoperiods. Genetics & Molecular Biology 21(3): 387-394, Sept, 1998

Flowering and podding behaviour in determinate and indeterminate pigeonpea genotypes. Indian Journal of Agricultural Research 34(1): 67-70, 2000

Flowering and fruiting patterns of five determinate soybean cultivars. Dissertation Abstracts International, B 41(5): 1598, 1980

Effect of photoperiods on flowering and growth behaviour of gram genotypes. G B Pant University of Agriculture and Technology : India, G B Pant University of Agriculture and Technology, Pantnagar: Annual report of research 1975-76: 38, 1977

DETERMINATE and LATE FLOWERING are two TERMINAL FLOWER1/CENTRORADIALIS homologs that control two distinct phases of flowering initiation and development in pea. Plant Cell 15(11): 2742-2754, 2003

Differences in flowering habit between determinate and indeterminate types of soybean. Plant Production Science 1(1): 18-24, March, 1998

Relationship between plant height and flowering date in determinate soybean. Crop Science 28(1): 27-30, 1988