Table 4.

Parameters of Vegetative Growth and Silique Development

Parametersdet1/det1 abi3/abi3adet1/det1, abi3/+, or +/+a
After 7 weeks
    Rosette paraclades (n)  5.3±1.4  7.1±1.4
    Accessory and cauline paraclades (n)18.6±5.129.0±11.5
    Longest branch (cm)  4.8±1.3  9.5±1.6
    Average internode (mm)  3.2±0.2  4.7±1.0
    Plants without siliques (%)52.9  2.9
        With 1 to 10 siliques (%)44.111.8
        With 10 to 50 siliques (%)  2.947.0
        With >50 siliques (%)  038.2
After 9 weeks
    Average internode (mm)  3.8±0.8  5.0±1.1
    Plants without siliques (%)14.7  0
        With 1 to 10 siliques (%)  5.9  0
        With 10 to 50 siliques (%)61.8  2.9
  • a The double homozygous det1/det1 abi3/abi3 plants were compared with det1/det1 abi3/+ or det1/det1 +/+ plants, which were harvested from the same det1/det1 abi3/+ plant. The discrimination of the genotypes was based on the green seed color present only in seeds homozygous for abi3. Plants were analyzed 7 and 9 weeks after the transfer of in vitro plants to the greenhouse. The averages with standard deviation are given. Data on abi3 and wild-type plants were omitted because their phenotypes are clearly distinct. The comparison of wild-type and det1 growth was described previously by Chory and Peto (1990).