@article{Valencia:256674,
      recid = {256674},
      author = {Valencia, Elide and Palada, Manuel},
      title = {SCREENING COWPEA ACCESSIONS FOR THE SEASONALLY DRY HEAVY  CLAY SOILS OF THE US VIRGIN ISLANDS},
      address = {2001-07-15},
      number = {1883-2017-544},
      pages = {5},
      year = {2001},
      abstract = {Cowpea [Vigna unguiculata (L) Walp] is adapted to  well-drained soils and is also drought tolerant. It is  primarily used as a pulse crop. It is such a versatile crop  with multiple uses [i.e., vegetable crop (both for the  green young leaves, shoots and the green peas)], cover  crop, and also as forage. Little information is available  on its adaptation to heavy clay soils. The objective of  this research was to characterize 25 cowpea pure lines for  seedling vigor (i.e., plant height), dry pod yield, forage  dry matter (DM) and tolerance to high pH soils (pH>7.5).  Replicated field studies were conducted on a mildly  alkaline Fredensborg clay (fine carbonatic,  isohyperthermic, Typic Rendolls, Mollisol) in 2000. Average  plant height ranged from 24 to 62-cm at 56-d after  planting. Days to floral initiation ranged from 36 to 62-d  after planting, indicating a high variability among lines.  Pod yield differed (P<0.05) among lines, with highest pod  yield for line IT97K-437-8 (450 kg ha"1). Forage yield also  differed among lines (P<0.05) with DM yields exceeding  3,500 kg ha"1 for line IT90K-277-2. Twelve lines exhibited  high seedling vigor, excellent forage and seed yield, and  low symptoms of iron deficiency. These were selected for  further evaluation.},
      url = {http://ageconsearch.umn.edu/record/256674},
      doi = {https://doi.org/10.22004/ag.econ.256674},
}