The xylem of ferns and conifers contains only tracheids . 蕨類植物和針葉樹的木質(zhì)部僅含有管胞。
Sapwood contains xylem vessels, but not as strong as heartwood . 邊材含有木質(zhì)導管,但不如中心木質(zhì)那樣堅硬。
Secondary xylem consists of pitted vessels, parenchyma fibers and rays . 次生木質(zhì)部由孔紋導管、薄壁組織及射線所組成。
A system confined to the transport of mineral elements is known as the xylem . 專門用來運輸?shù)V物元素的系統(tǒng)稱為木質(zhì)部。
The stele includes all primary tissues derived from the procambium consists of pericycle,phloem and xylem . 中柱包括從原形成層衍生而來的全部初生組織,由中柱鞘、韌質(zhì)部和木質(zhì)部組成。
In older stems, only the most recent rings of xylem participate in the transport of materials. these make up the sapwood . 在老莖中,僅最新的木質(zhì)部環(huán)參與物質(zhì)的運輸。這些木質(zhì)部環(huán)組成邊材。
Effects of xylem cavitation and embolism on plants 木質(zhì)部空穴和栓塞化對植物的影響
Study of vessel elements of secondary xylem in aquilaria agallocha 次生木質(zhì)部導管分子研究
Observation of vessel elements of secondary xylem in mangifera indica 芒果次生木質(zhì)部導管分子的觀察
Studies on the vessel elements of secondary xylem in manilkara zapota 人心果次生木質(zhì)部導管分子的觀察研究