Physiological Responses of the Three Wild Vegetables under Different Shading Treatment

摘要

This present study was conducted to investigate photosynthetic characteristics, chlorophyll fluorescence, chlorophyll contents of Allium victorialis var. platyphyllum, Ligularia fischeri, Ligularia stenocephala growing under four different light intensity regimes (full sun, and 64 similar to 73%, 35 similar to 42%, 9 similar to 16% of full sun). Three wild vegetables showed good photosynthetic capacity in July. Allium victorialis var. platyphyllum showed best photosynthetic capacity and apparent quantum yield in 35 similar to 42% of full sun. But Ligularia fischeri and Ligularia stenocephala showed best photosynthetic capacity and apparent quantum yield in full sun and decreased as the shading level increaese. As the shading level increased, the total chlorophyll contents increased with a significant difference in three wild vegetables.