TY  - JA
AU  - Bennett,J.M.
AU  - Hammond,L.C.
TI  - Grain yields of several corn hybrids in response to water stresses imposed during vegetative growth stages
PY  - 1983///
KW  - Drought resistance
KW  - Irrigation
KW  - AGROVOC
KW  - Plant developmental stages
KW  - Plant water relations
KW  - Selection
KW  - Stress
KW  - Water deprivation
KW  - Yield components
KW  - Yield factors
KW  - Zea mays
KW  - Hybrids
N1  - Tables, graphs, literature cited p. 111
N2  - During trials at Gainesville, Florida, maize cv. Pioneer Brand 3160, PioneerBrand 3320, Dekalb XL-80 and McCurdy 84 aa were rain-fed, given a water-deficit period during vegetative development or fully irrigated. 5 further cv. were usedin some of the trials. In 1980, total wilting periods were 41, 17 and 0 days, resp.; corresponding values for 1981 were 55, 15 and 0 days. Although water stresses during vegetative growth in 1980 and 1981 reduced LAI by 19%, plant ht.by 17% and grain yields by 10-15% on av., total leaf number was not significantly different in any of the treatments. Rainfed plants produced grain yields of only 45% and 33% of the
T2  - Soil and Crop Science Society of Florida Proceedings
ER  -