A total of 32 snow peas (Pisum sativum var. Saccharum cv Carouby de Maussane) were chosen as study plants. For each pot, 6 seedlings were potted at 8 cm from the pot’s border and sowed at a depth of 2.5 cm. Once germinated, one healthy-looking sprout was selected and randomly assigned to the experimental conditions: 19 plants were grown individually in chambers without the presence of a support (“no support” condition; Figure 1a), while 13 plants were grown individually in chambers where a potential support was present (“support” condition; Figure 1b). Sprouts were placed 8 cm from the pot’s border and sowed at a depth of 2.5 cm. The support was a wooden pole (54 cm in height and 1.3 cm in diameter) inserted 7 cm below the soil surface and positioned 12 cm away from the plant’s first unifoliate leaf.
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