Premium
Morphological and Physiological Effects of Maleic Hydrazide on Tobacco
Author(s) -
BUSH L. P.,
SIMS J. L.
Publication year - 1974
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1974.tb03744.x
Subject(s) - hydrazide , nicotiana tabacum , respiration , tobacco leaf , axillary bud , curing of tobacco , biology , meristem , horticulture , photosynthesis , chemistry , botany , shoot , biochemistry , tissue culture , in vitro , agricultural engineering , organic chemistry , gene , engineering
Tobacco plants ( Nicotiana tabacum cv. Burley 21) were cultured in the greenhouse to the 18‐leaf stage. The apical meristem was removed and subsequent axillary bud growth was removed by hand (controls) or axillary bud development was inhibited by application of maleic hydrazide. Compared with the controls, maleic hydrazide treated plants had a decreased stem diameter and stem weight, but an increased leaf weight and leaf weight/area. Plant height and leaf area were the same for both treatments. Maleic hydrazide inhibited translocation of 14 C from a single leaf exposed to 14 CO 2 . Respiration was greater than in the controls three days after application of maleic hydrazide, but 9 and 14 days after application there were no differences in respiration between the two treatments. Maleic hydrazide did not affect photosynthetic activity.