Plant Growth and DevelopmentHard
Question
Highest auxin concentration occurs
Options
A.in growing tips
B.in leaves
C.at base of plant organs
D.in xylem and phloem
Solution
Boyesn-Jensen (1913), Paal (1919) and Went (1928) while working on oat coleoptile tip demonstrated that stem tip is the seat of growth regulating centre. Auxin shows polar transport from stem apex to base and from these to root apex.
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