![]() This finding highlights that chitosan can be proposed as an alternative and practicable mitigator for alleviating the continuous cropping obstacle of P. Additionally, 0.5~1.0% chitosan spraying could also effectively enhance its yield and quality. Meanwhile, 0.5~1.0% chitosan spraying could notably increase its photosynthetic rate (Pn), intercellular carbon dioxide concentration (Ci), stomatal conductance (Gs), and transpiration rate (Tr), and decrease its soluble sugar, proline (Pro), and malonaldehyde (MDA) contents, as well as promoting its superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) activities. ternata, and reduced its inverted seedling rate. Spraying of 0.5~1.0% chitosan effectively increased the leaf area and plant height of continuous P. ternata and inhibited its growth, yield, and quality. The results indicate that continuous cropping significantly ( p < 0.05) raised the inverted seedling rate of P. ![]() ternata were investigated by two field spraying methods. ![]() In this study, the effects of chitosan on the growth, photosynthesis, resistance, yield, and quality of the continuous cropping of P. ![]() The continuous cropping obstacle has become the key factor that seriously restricts the growth, yield, and quality of Pinellia ternata. ![]()
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