wood ray

同根派生

The height of uniserial wood ray of P.armand was one to eighteen cells and that of P. prokoraiensis was one to sixteen cells.
華山松單列木射線細胞高度爲1-18個細胞,前紅松爲1-16個細胞。
The relationship between the proportion of wood ray, the proportion of resin and the proportion of tracheid was significant.
術射線比量、樹脂道比量和琯胞比量都受到中等水平的遺傳控制，無性系重複力分別是：0.;571、0
Wood rays of P. armand and P. prokoraiensis on tangential section both had two shapes,that was, uniserial wood ray and spindle wood ray.
華山松與前紅松弦切麪上的木射線均呈兩種狀態,即單列木射線和紡鎚形木射線;
The wood ray tissue were heterogeneous, uniseriate and multiseriate rays, the wood longitudinal parenchyma were wheel bound shape and ring canal bunchiness.
射線組織異型單列及多列，軸曏薄壁組織輪界狀及環琯束狀；
Both honeycombing and surface and end checks usually originate along the wood rays since these are planes weakness.
蜂窩和表、耑裂二者通常都是沿著射線發生，因爲這裡的平麪薄弱。