草質莖 的英文怎麼說
中文拼音 [cǎozhíjīng]
草質莖
英文
herbaceous stem-
Both oxyopes sertatus and harpactor fuscipes are important predators of common cutworm ( spodoptera litura ) on tobacco. the effect of several interference factors on the predations of o. sertatus and h. fuscipes on the larvae of s. litura were examined in laboratory. the results indicated that there were significant mutual interferences on their predations with the existence of other individual in the same / different species. as the number of the predator increased, the predation rates decreased significantly. the interference coefficients ( m ) within h. fuscipes and within o. sertatus were 0. 7278 and 0. 6911, respectively, while the interference coefficient ( m ) between o. sertatus and h. fuscipes was 0. 9464. these results showed that the effect of mutual interference on predation in interspecies was more obvious than that in intraspecies. the number of prey captured and the predation rate of predator dropped with increasing the number of tobacco stalks. this result suggested that spatial heterogeneity was also an important factor affecting the predation of predator on prey
斜紋貓蛛和紅彩真獵蝽均是煙草上斜紋夜蛾的重要捕食性天敵.室內測定幾種干擾因素對斜紋貓蛛和紅彩真獵蝽捕食作用的影響,結果表明這些干擾因素對斜紋貓蛛種內、紅彩真獵蝽種內和兩種捕食者種間的捕食作用均有明顯的干擾作用,隨捕食者數量的增加,其對斜紋夜蛾捕食作用率顯著降低.斜紋貓蛛種內的干擾系數和紅彩真獵蝽種內的干擾系數分別為0 . 7278和0 . 6911 ,而兩者種間的干擾系數為0 . 9464 ,說明兩者種間的干擾作用要明顯高於同一種捕食者種內的干擾作用.兩種捕食性天敵對斜紋夜蛾的捕食量和捕食作用率隨煙草莖桿數的增加而降低,表明空間異質性同樣是影響兩種捕食性天敵捕食作用的一個重要因素They stretch out, the matte green of their leaves conveying what it would be like to touch them, to run your finger down the blade and feel the rough resistance of these durable plants ' skin : the gama grass, rough hair grass and broom beard grass
瓜地馬拉草、翦股穎和小藍莖草的細長葉片四處伸展,黯淡的表面想也知道摸起來大概是怎樣的質感,用指頭順著葉脈滑下,就可感受到這些強韌植物的粗糙葉面。The negative correlation of the dry matter production to the age class of rhizome indicates level of significance ( p < 0. 05, po. ol ) in leymus chinensis, calamagrostis epigeios and c. rigidula populations
羊草、牛鞭草和硬拂子茅種群根莖的干物質積累量與齡級間的負相關關系達到顯著和極顯著水平。Description : perennial herbs, 5 - 20 cm tall, densely white villose ; roots slender, terete, up to 40 cm long, fleshy, stem buried in sand with apical part emerged above ground
形態特徵:多年生草本,高5 - 20厘米,全株密被白色長柔毛;根細長,圓柱形,長達40厘米,肉質;莖大部埋藏於沙中,部分露出地面。And the viviparous plantlets of both species are formed for the differentiation of floral primodium, but the position if viviparous plantlets is different. for the species of polygonum viviparum l., the viviparous plantlets are formed in the inflorences, while in saxifraga cernua l are in the leaf axils. on the results of observation for morphology and anatomy, vascular bundles of viviparous plantlet are connected with that of their parent
從來源和性質看,二者的胎生苗均由花原基直接分化形成;但從位置上看,珠芽蓼在花序中形成胎生苗,而珍珠虎耳草則在地上莖的葉腋部位形成胎生苗;從形態解剖角度觀察,胎生苗的維管束與母體的維管束直接相連,胎生苗脫落時,其上已長出葉片1 - 3枚。In this thesis, the strategies of guerilla - type clonal plants to adapt themselves to heterogeneous environments are addressed using both field and greenhouse experiments
本文以匍匐莖和根狀莖型草本為材料,應用實驗生態學方法研究了游擊型克隆植物對異質性環境的生態適應對策。Calli were induced from internode segments of the methionine resistant plantlets of astragalus melilotoides. the highest yield of protoplasts ( 2. 1 x 106 / g f. wt. ) was obtained from 8 - day - old friable calli after subcultured on fresh medium
用草木樨狀黃芪甲硫氨酸抗性變異系植株莖切段誘導的松軟愈傷組織為材料,通過酶法分離出大量有活力的原生質體。Other sources are sweet stem sorghum and cassava, and cellulosic material such as grasses, trees and various waste products from crops, wood processing and municipal solid wastes
其他原料包括甜高粱莖桿和木薯、草、樹和各種作物和木材的加工廢料等纖維物質,以及城市固體廢物。The morphological character of rhizome is different among grass species, as well as the dry matter production, but the production in the young rhizome is more than the one in the old
不同種類禾草根莖的形態特徵各異,干物質積累量也不相同,但均以幼齡根莖積累量多,老齡積累量少。The advantages of plantain at high population density include potential to increase yields significantly, better crop cycle planning to harvest during best market conditions, optimum use of land because one hectare of high density plantain can produce as much as 3 - 5 hectares of conventional planting, high production of good quality corms used as seed for the next cycle and intensive management resulting in a lower incidence of pests, diseases and weeds
大蕉密植的優勢在於:有顯著的增產潛力,有較好的生產周期以適應最佳市場條件,能高效利用土地(密植1公頃相當于通常的3 ~ 5公頃) ,可生產出可作為下季種子的大量優質球莖,集約管理可減少病、蟲、草害的發生。A plant whose stem does not produce woody, persistent tissue and generally dies back at the end of each growing season
草一種莖部由非木質的、非宿存的組織組成的,一般在每段生長期末死亡的植物分享友人