Microstructural and lignin characteristics in herbaceous peony cultivars with different stem strengths

Authors conducted experiments with stem strength on 8 cultivars of Chinese peonies, P. lacitflora. They were interested in learning if lignin and/or cellulose were the main components of stem strength (lignin won). In a previous article, they found that stem strength could be significantly improved by spraying plants with silicon or nano Calcium carbonate. In this study, they tested 8 cultivars that had different stem strength qualities, four with poor stem strength where the stem could not hold up the fully opened flower, and four with great stems.

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