Water stress during flowering of cotton
D. W. Grimes, San Joaquin Valley Agricultural Research and Extension Center, Reedley
R. J. Miller, West Side Field Station, Five Points
L. Dickens, Department of Water Science and Engineering, University of California, Davis (located at U. S. Cotton Research Station, Shafter).
California Agriculture 24(3):4-6. DOI: 10.3733/ca.v024n03p4.
A severe plant water deficit imposed for nine days during the peak flowering period of cotton reduced yield more than stress periods of comparable length imposed either early or late in the flowering period. Water stress occurring early in the flowering period reduced yields by increasing shedding of squares before they flowered. Stress late in the flowering period reduced flowering rates and boll retention.
D. W. Grimes is Assistant Water Scientist, San Joaquin Valley Agricultural Research and Extension Center, Reedley; R. J. Miller is Associate Water Scientist West Side Field Station, Five Points; L. Dickens is Laboratory Technician, Department of Water Science and Engineering, University of California, Davis (located at U. S. Cotton Research Station, Shafter).
Research from which this report was prepared was supported in part by a grant from the California Planting Cotton Seed Distributors.