Safety profile evaluation of different herbicides used on peach rootstock seedlings.

To screen out suitable herbicides for peach nurseries, we treated the potted seedlings of the peach rootstock 'Nemaguard' with eleven herbicides under recommended doses to investigate the changes of physiological indices and comprehensively evaluate the safety of different herbicides using principal component analysis (PCA). The results showed that soil application of quizalofop-p exhibited no detectable phytotoxicity on rootstock seedlings, while the remaining herbicides generated multiple symptoms, including green loss, wilting, spot, and withering. Starane caused rapid wilting and death, with a 100.

[Effects of glyphosate and paraquat on root morphology and aboveground growth of Prunus persica seedlings].

To ascertain the safety of herbicides in peach production, we examined the effects of two herbicides (glyphosate and paraquat) on vegetative growth, root structure, root-tip cell mitosis and photosynthesis in rootstock Prunus persica seedlings. The results showed that the growth of both shoot and root of the P. persica seedlings was significantly inhibited under the glyphosate treatment.