The commercial application of synthetic auxin 2, 4-D as a selective herbicide in lawn maintenance relies on its property of:

A
Killing broad-leaved dicotyledonous weeds while leaving mature monocotyledonous plants unharmed
B
Selectively promoting adventitious root formation in all weed species
C
Hastening senescence in ripening citrus fruits without affecting leaves
D
Inducing extensive xylem lignification in mature monocotyledonous grasses

View Answer & Solution

Correct answer · Option A

Killing broad-leaved dicotyledonous weeds while leaving mature monocotyledonous plants unharmed

2, 4-D is widely used to kill dicotyledonous weeds in lawns because it does not affect mature monocotyledonous plants.