竹笋期竹箨和笋体的日间蒸腾特性及其对水分运输的影响

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李唐吉¹, 王懋林¹^,², 曹颖¹^,^*(

), 徐刚¹, 杨琪祺¹, 任思源¹, 胡尚连¹^,²^,^*(

)

Diurnal transpiration of bamboo culm and sheath and their potential effects on water transport during the bamboo shoot stage

LI Tang-Ji¹, WANG Mao-Lin¹^,², CAO Ying¹^,^*(

), XU Gang¹, YANG Qi-Qi¹, REN Si-Yuan¹, HU Shang-Lian¹^,²^,^*(

)

图7. 离体条件下不同高度竹笋的番红溶液示踪(平均值±标准差)。A, 竹笋各部分的名称。B, 竹笋茎秆的日伸长速度及伸长部分占比。C, D, 竹笋茎秆中番红溶液向上运输的高度及占比。E, F, 将竹笋外层所有竹箨切离后, 茎秆中番红溶液运输高度及占比。伸长部分占比=正在伸长部分/笋体净高; 番红上升比=番红上升高度/笋体净高。

Fig. 7. Tracing of safranine solution of bamboo shoots at different development stages in vitro (mean ± SD). A, Index picture of bamboo shoot. B, Daily elongation rate and elongation ratio of bamboo shoots with different height. C, D, The height and proportion of safranine transported upward respectively in the intact bamboo shoots wrapped by sheaths. E, F, The height and proportion of safranine transported upward respectively in pure shoot body when culm sheaths were separated. Elongation ratio = elongating part/shoot body height; rise ratio of safranine solution = rise height of safranine/shoot body height.