(1) Four kinds of fungicides had neither phytotoxic effect on the germination rate nor influence on the vigour of vegetable seeds.

(2) In the text, we identify the phytotoxic substances in root exudates of cucumber by GC-MS, the root exudates was collected with Amberlite XAD-4 resin.

(3) Because composting is a biochemical process and the compost maturity is related to phytotoxic substances in the immature compost , it can also be assessed by biological methods .

(4) Oil spotting ( oleocellosis) was a prevalent physiological rind disorder of citrus fruits that was caused by the action of phytotoxic rind oils released from the oil cells in the flavedo.

(5) Oxalic acid (OA), a non-host-specific toxin secreted by Sclerotinia sclerotiorum during pathogenesis, has been demonstrated to be a major phytotoxic and pathogenicity factor.