1. The pericycle produces the latent roots and periderm.
由中柱鞘产生侧根及周皮。
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2. The epidermis has been replaced by periderm on the surface of stem.
林奈木茎的表面，表皮层已被周皮所代替。
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3. The vascular ray was developed and the development of periderm was obvious.
维管射线发达，周皮发育明显。
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4. It had secondary structure and the secondary protective tissue was periderm.
具有次生结构，次生保护组织为周皮。
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5. Adventitious roots and rhizome have much periderm, the suppository level is high;
不定根和地下茎的周皮发达，栓质化程度高；
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6. The harmful effect of injecting chemical into tree on the xylem, bast, periderm and tree body was studied.
本文就树干注入农药，对木质部、韧皮部及周皮和整个树体是否产生不良影响做出评价。
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7. Periderm, lenticelle and secondary vascular tissue in the gynophore are produced due to its secondary growth.
次生生长后产生周皮、皮孔和次生维管组织。
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8. The formation of periderm is relatively late and cork cambium is come from the cortex cells which arenear endodermis.
周皮发生较迟，其木栓形成层由紧靠内皮层的皮层细胞产生。
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9. The results showed that the taproots of transplanted P. ginseng plants consist of periderm and secondary vascular tissue.
结果表明，移山参主根结构由周皮和次生维管组织组成。
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10. The alkaloid contents were highest in root and stem base phloem of Amur corktree saplings, and lower in leaves, xylem and periderm.
黄檗幼树根韧皮部和茎干基部的韧皮部中主要药用成分含量很高，而叶片、木质部和周皮很低。
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11. Results and Conclusion The secondary structure of the stem of Uvaria microcarpa consisted of the periderm, cortex and vascular cylinder.
结果与结论紫玉盘的茎次生构造由周皮、皮层及维管组织组成；
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12. The results showed that all the cross branch roots of different sizes consisted of periderm, secondary vascular tissue and tetrarch primary xylem.
结果表明：不同直径大小的横走侧根均由周皮、次生维管组织和四原型的初生木质部构成。
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13. There was hypha in 1- 10layers cell of surface in young tumour-body base. Grown tumour-body formed periderm, vascular bundle and a lot of pith cells.
幼期的瘤状体基部表面1—10层细胞内含菌丝，长大的瘤状体形成周皮，内部形成大量维管束和髓；
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14. The dorsal epidermis had three layers of cells at the 34th day of incubation. Pigmentation started to appear in the cells of periderm at the 40th day of incubation.
背部表皮在孵化第34天出现三层细胞，第40天周皮层细胞中开始出现色素沉集。
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15. The phellem of periderm and special morphological structure of sweet potato "Lushu 780" and "Shengli 00" play the role of a barrier to the spread and invasion of nematodes.
甘薯品种“鲁薯780”和“胜利百号”的周皮木栓层和一些特殊形态结构是阻止该线虫侵入和扩展的屏障。
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16. In cultivated salvia miltiorrhiza roots light-colored periderm contained less layers of cells and low ratio of phloem to xylem compared with those in wild salvia rniltiorrhiza roots.
17. Periderm cork cells was nearly square or irregular, large caliber, large quantities, cascading arrangement. The caliber of the outermost layer of cork cells was large, filled the air.
18. Suberinite occurs commonly in Mesozoic coal measures and terrestrial organic matter source rocks in Northwest China, which is formed from suberized cell walls, particularly in plant periderm.
西北中生界煤系烃源岩中普遍含有木栓质体，它来源于植物周皮的木栓化细胞壁。
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19. Results The secondary structure of the roots of Taxus chinensis var. mairei consisted of the periderm and vascular cylinder(stele). Axial and radial systems formed the secondary xylem of the roots.
结果南方红豆杉根的次生结构由周皮和维管系统组成，次生木质部由轴向系统和径向系统两部分构成。
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20. Results The secondary structure of the roots of Taxus chinensis var. mairei consisted of the periderm and vascular cylinder(stele). Axial and radial systems formed the secondary xylem of the roots.
