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Effects of Repeated Drought Periods on Photosynthesis and Survival of Cereal Seedlings 1
Author(s) -
Todd Glenn W.,
Webster Daniel L.
Publication year - 1965
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1965.00021962005700040028x
Subject(s) - hardiness (plants) , photosynthesis , agronomy , biology , turgor pressure , drought tolerance , winter wheat , drought stress , water content , moisture , horticulture , botany , cultivar , chemistry , geotechnical engineering , organic chemistry , engineering
Synopsis There were no significant differences in photosynthetic rate among wheat varieties differing in drought hardiness although slightly higher rates were obtained at lower turgor for nearly all cereal varieties after they had been subjected to a single drought period. Photosynthetic rates paralleled moisture stress during successive drought periods. A method of screening for relative drought hardiness among wheat varieties was devised and tested and this correlated well with known field hardiness.