Defoliant bụ onye na-ahụ maka uto nke nwere ike ịkwalite ihe ọkụkụ iji wụsa akwụkwọ n'oge mgbụsị akwụkwọ, belata oge ntolite osisi, melite arụmọrụ nke photosynthesis osisi, ma welie ihe ọkụkụ na-eguzogide nrụgide na oyi. Usoro nke defoliants na-eme ihe bụ ịhazi ọkwa nke homonụ endogenous, na-agba akwụkwọ ndụ akwụkwọ ndụ, na ịkwalite ịkwasa. Maka osisi ndị nọ na ọnọdụ okpomọkụ dị ala ruo ogologo oge, iji defoliants kwesịrị ekwesị mee ihe nwekwara ike ịkwalite uto na mmepe ha nke ọma.

Njirimara anụ ahụ na kemịkal nke forchlorfenuron (KT-30). Forchlorfenuron bụ otu n'ime ihe ndị bụ isi na ihe ọṅụṅụ aki oyibo. Ọgwụ mbụ bụ ntụ ntụ siri ike na-acha ọcha, nke a na-esighị ike n'ime mmiri, na-agbaze ngwa ngwa na ihe mgbaze organic dị ka acetone na ethanol.

Dị ka onye na-ahụ maka uto osisi, 2,4-D nwere ike ịkwalite nkewa cell, gbochie okooko osisi na mkpụrụ osisi ka ọ ghara ịdaba, mee ka ọnụọgụ mkpụrụ osisi na-eto eto, na-akwalite mmụba mkpụrụ osisi, meziwanye àgwà mkpụrụ osisi, na-amụba mkpụrụ, na-eme ka ihe ọkụkụ na-eto eto n'oge mbụ ma mee ka ndụ dị ogologo. mkpụrụ osisi.

Njirimara anụ ahụ na kemịkalụ nke forchlorfenuron (KT-30). Forchlorfenuron bụ otu n'ime ihe ndị bụ isi na ihe ọṅụṅụ aki oyibo. Ọgwụ mbụ bụ ntụ ntụ siri ike na-acha ọcha, nke a na-esighị ike n'ime mmiri, na-agbaze ngwa ngwa na ihe mgbaze organic dị ka acetone na ethanol.