biennial plant 中文意思是什麼
biennial plant
解釋
二年生植物-
A perennial plant, such as the english daisy, cultivated as a biennial
所有一年生及二年生植物都是結果一次而後死去。 -
Primula merriiliana is a small plant of biennial, rosette herbs with pinnately dissected leaves. the flowers are borne on leafless scapes in umbellate inflorescences, which are arranged in the form of 1 - 3 level of the umbels. they are often heterostylous, whereas p. cicutarrifolia is different from the former in having homomorphic flowers, one level of umbel, and the eroded tepals
安徽羽葉報春為具異型花、花序1 - 3層，葉羽狀深裂的二年生小草本植物，毛茛葉報春為具同型花、傘形花序1層、葉羽狀深裂的二年生小草本植物，兩物種都在第一年八月開始萌發幼苗，第二年七月結束其生活史。 -
Biennial a plant that completes its life cycle within two years
二年生植物：在兩個生長季內完成全部生活史的植物。 -
In addition, the pith of root and stem is flourishing for prosperous growth period and declining period, the vascular tissue storing the nutrient and providing the nourishment for the biennial plant in next year from abnormal secondary growth is developing in pith, unusual structure eg. epidermis and vice - epidermis, bubble form cell, short pipe numerators and wreath grid types leaf etc. in each organ of pugionium comutum ( l. ) gaertn. had been formed to adapt to dry environment, so the characteristics on appearance and anatomies in pugionium cornutum ( l ) gaertn. has closely of relation with its anti - drought and its adapting to desert environment
此外，葉片旺盛生長期、衰退期根莖具發達的髓，髓內有異常次生生長形成的維管組織，貯藏養分，為沙芥次年形成二年生植株提供營養，沙芥各器官在解剖結構方面都形成了特化結構如具表皮及副表皮、泡狀細胞、短的導管分子及環柵型葉等以適應乾旱的環境，因此沙芥各器官的形態及解剖特點與其抗旱、適應沙漠環境有密切的關系。 -
The results showed that, in the course of wasteland restoration, the cultivated vegetation grew well ; the plant species was increased from 13 to 60, and the richness index, evenness index and diversity index of species was increased significantly ; the proportion of annual and biennial herbage in vegetation composition was decreased from 61. 5 % to 35 %, and the vegetation coverage was increased from 18 % to 80 %
結果表明：荒灘恢復過程中，人工植被長勢良好，植物種類由恢復前的13種增加到60種，群落物種的豐富度指數、均勻度指數、多樣性指數均比恢復前顯著提高；生活型譜中一、二年生草本植物的比例由恢復前的61 . 5 %降低到35 % ，植被蓋度由恢復前的18 %增加到80 % 。
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