@article{Emanuel:253459,
      recid = {253459},
      author = {Emanuel, K.M. and Matthew, K. and Zimmerman, T.W.},
      title = {EVALUATION OF FIRST AND THIRD GENERATION SORREL FOR PLANT  VIGOR},
      address = {2013},
      number = {537-2016-38562},
      pages = {7},
      year = {2013},
      abstract = {Sorrel, Hibiscus sabdariffa, has autogamous flowers that  self-pollinate
prior to flower opening resulting in inbred  varieties. Cross pollination of inbred plants
normally  results in hybrid with vigor that out-perform both parents.  Two varieties of red
sorrel, 'TTB', which is deep crimson  and open, and a 'KDN', which is day neutral and
red, were  use as parents. 'TTB' was late flowering with a crimson  fruit and 'KDN' was
day-neutral with red fruit. The  objective was to study two parental sorrel lines and the
F1  and F3 progeny to evaluate plant vigor for production,  floral initiation, fruit color and
shape. Selection of  plants from the F2 population were used to obtain seed for  the F3
progeny. Plant vigor was determined by measuring  plant height and number of
branches at two week intervals  as well as recording when floral buds became  visible.
Though the F1 population of 'TTB' χ 'KDN' had a  trend of being taller than the parents, it
wasn't  significant for plant height and branch development. The F3  populations were
significantly taller than the F1 and  parent varieties. The F1 and F3 'TTB'x'KDN'  plants
initiated flowers at the same time as 'TTB' which  was two weeks later than 'KDN'.
However, the F3 line of  'KDN'x'TTB' initiated flowers at the same time as  'KDN'
indicating a new day neutral variety. Hybrid vigor  can be obtained from specific
controlled crosses in sorrel.  The day neutral characteristic can be recovered in  F3
population where 'KDN' was the female parent. This  research was funded through
USDA-NIFA- Insular Tropical  Grant funds and USDA-NIFA-SCBG from the VI
Department of  Agriculture.},
      url = {http://ageconsearch.umn.edu/record/253459},
      doi = {https://doi.org/10.22004/ag.econ.253459},
}