dioecious造句
例句與造句
- Examples include dioecious species where only one sex is present .
例如在雌雄異株種類中僅僅存在單性。 - Endodeme is a deme composed of predominantly closely inbreeding but dioecious individuals .
同系同群種是由近親繁育占優(yōu)勢,但雌雄異株的個體組成的同群種。 - This promotes genetic varation in the population especially in plants that are dioecious and moneclous
可以在種群中產(chǎn)生遺傳變異,特別是在一些雌雄異體或雌雄同體的植物中。 - Examples include the scale leaves of parasitic flowering plants or the reduced stamens in females of dioecious species
例如:寄生有花植物的鱗葉;雌雄異株種類的雌株的退化雄蕊。 - It is a dioecious plant . the female tree is different from the male in many aspects , such as karyotype analysis , pattern of peroxidase isozymes and shape of flower
銀杏又是嚴格的雌雄異株,還沒有發(fā)現(xiàn)雌雄同株現(xiàn)象,其雌雄株在染色體核型,過氧化物同工酶譜等都有較大差異。 - It's difficult to find dioecious in a sentence. 用dioecious造句挺難的
- Examples include male and female plants in dioecious species , aerial and submerged leaves , alternation of gametophyte and sporophyte stages of a life cycle , and mesophyll and bundle - sheath chloroplasts
例如在雌雄異株物種中的雌性植物和雄性植物,氣生的和被水浸沒的葉片,生活史中的配子體與孢子體的交替,葉肉和維管束鞘葉綠體等。 - This is so because climbing plants are likely to encounter intensive - changing environmental condition during their growth ( especially change of illumination ) . secondly , there is a large proportion ( 30 - 40 % ) of climbing plants which belong to dioecism , and hence a gap between male and female plants on morphology , biological characteristic , economic value and so on . this dissertation focuses on herbaceous climbing plants , perennial or annual species such as dioecious trchosahthes kirilowii maxin and dioscorea opposita thumb , and monoecious luffa cylindrical ( l ) roem , it attempts to discover how climbing plants adapted to various environments and the mechanism of adaptation from aspects of physiological and reproductive ecologies at present , due to overuse of chlorofluorocarbons ( cfcs ) , the ozonosphere has become thinner and thinner , and the ultraviolet - b ( uv - b ) radiation has increased considerably
而攀援植物本身是一類理想的植物行為生態(tài)學研究材料:第一,攀緣植物由于受攀緣能力和支柱木資源的限制,在生長過程中通常要遇到強烈變化的環(huán)境條件(特別是光照) ;第二,攀緣植物中具有較高比例的雌雄異株類型,通常占地區(qū)攀緣植物種類的30 40左右,不同性別的植物在形態(tài)學及生物學特性、經(jīng)濟價值等方面存在一定的差距,因此,本文以雌雄異株攀緣植物栝樓( trchosahtheskirilowiimaxim ) (葫蘆科多年生草質(zhì)藤本植物)和山藥( dioscoreaoppositathunb ) (薯蕷科薯蕷屬植物) 、雌雄同株異花攀緣植物絲瓜[ luffacylindrical ( l ) roem ] (葫蘆科一年生攀緣草本植物)為材料,試圖從生理生態(tài)學及生殖生態(tài)學角度揭示攀援植物如何適應不同生境及其機理。 - Based on the field investigations and laboratory examinations , a study of the population of the epiphytic dolichomitriopsis diversformis ( mitt . ) nog . in fanjing mountain reveals that its habitats are different among different host trees , but that there lies the common habitat characteristics of not more than 2m height from the bottoms of host trees trunks , less light , high relative humidity , slow wind speed , slow evaporation speed and long time of remaining humid in middle - lower tree bark ; that it is one dioecious moss species , the morphology is remarkably different between its perichaetium and perigonium , the number of its perichaetia is much more than that of its perigonia , its perigonium is difficult to find out , its sporophyte is upright , its seta is long and thin , its capsule is regular long oval and its calyptra is cucullate
摘要通過野外調(diào)查和室內(nèi)觀測對貴州省梵凈山樹附生尖葉擬船葉蘚種群的研究表明,其生境因其所附生的樹種不同而有所不同,但具有共同特點:附生在樹干下部距地面2m高的范圍之內(nèi),光照弱、濕度大、風速小、蒸發(fā)量小、中下部樹皮保持濕潤的持續(xù)時間長;其為雌雄異株蘚種,雌、雄器苞形態(tài)差異明顯,雌器苞數(shù)量多,雄器苞數(shù)量少并且難于發(fā)現(xiàn),孢子體直立,蒴柄細長,孢蒴規(guī)則長卵形,蒴帽兜形。