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Root growth inhibition of rice by bensulfuron
Author(s) -
YIM KYUOCK,
BAYER D.E.
Publication year - 1996
Publication title -
weed research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 74
eISSN - 1365-3180
pISSN - 0043-1737
DOI - 10.1111/j.1365-3180.1996.tb01800.x
Subject(s) - oryza sativa , mitotic index , shoot , biology , plant growth , horticulture , rice plant , mitosis , botany , biochemistry , gene , microbiology and biotechnology
Summary Bensulfuron inhibited root growth of waterseeded rice ( Oryza sativa L.) plants in a solution culture system. Rice root growth was more sensitive to bensulfuron than was shoot growth. A1 2.5 × 10 ‐9 M bensulfuron, plant height, number of leaves and number of roots were not significantly affected, while root growth was reduced, Seedlings treated 3 or 4 days after emergence showed a significant reduction of total root length by the second day after treatmeni. Root growth inhibition was proportional to duration of treatment; however, treatment for 2 days was necessary to affect root growth, Bensulfuron decreased the mitotic index and the mitotic height in root tips. At 5 days after treatment, only 0.7% of the cells were dividing and mitotic height was 68% of control