Table I.

Effects of sin1 and caf mutations on flowering time and leaf no.

StrainSegregant PhenotypenAverage Bolting TimeAverage No. of LeavesSignificant Difference between Segregants
Columbia-glabrous1(Co-gl)Wild type4127.4 ±  1.49.1 ±  1.0
sin1-1/+ (Co-gl)Sin1+ 3228.1 ±  1.49.2 ±  0.9
Sin1 1045.0 ±  2.918.8 ±  2.7 d > 99%
sin1-2/+ (Co-gl)Sin1+ 3328.4 ±  1.69.3 ±  1.0
Sin1 1541.0 ±  2.318.7 ±  2.0 d > 99%
sin1-1/+ (La-er)Sin1+ 3827.9 ±  1.68.3 ±  0.8
Sin1 1542.5 ±  5.914.6 ±  2.8 d > 99%
sin1-2/+ (La-er)Sin1+ 2626.6 ±  2.07.7 ±  0.9
Sin1 936.2 ±  3.612.3 ±  2.2 d > 99%
caf-1/+ (La-er)Caf+ 4227.8 ±  2.08.4 ±  0.8
Caf 735.0 ±  2.111.1 ±  1.7 d > 99%

Regardless of the genetic background, sin1 andcaf mutants exhibit a delay in flowering (as assayed by the no. of days it took the plants to bolt), as well as an increase in the production of leaves. Data were analyzed using the Fisher-Behrens procedure (for means with unequal population variances), with thed value significant at the 99% level when comparing the mutants with their wild-type segregants, for both flowering time and leaf no. (Campbell, 1989). The data are presented as mean ±sd.