Toxicity of pesticides to pollen germination of 'Haden' mango.
Shu Z. H., Chiou C. C., Lee C. L.
Author Affiliation: Department of Plant Industry, National Pingtung University of Science and Technology, Pingtung, 912, Taiwan.
: 841-846
Abstract : The toxicity of pesticides was investigated by determining the effect of selected pesticides on pollen germination of mango cv. Haden both in vitro and in vivo. Among the pesticides tested, acephate-met [methamidophos] and methomyl were the least toxic to pollen germinated on agar medium containing the test pesticides. Toxicity was greater when the pesticides were sprayed on the surface of the germination medium. The fertilization of mango flowers was extremely sensitive to all pesticidal sprays when applied 2 h before or 4 h after hand pollination except for acephatemet. Pollen tube growth and initial fruit set were influenced to a lesser degree when pesticides were applied to flowers 24 h before pollination.