子葉發育期 的英文怎麼說
中文拼音 [ziyèfāyùqī]
子葉發育期
英文
development of the cotyledon-
The primary structures, the genesis and the structure formed of the primary vascular system and the structural change in the process of cotyledonary senescence of the seedlings of antirrhinum majus and other angiosperms were studied. the progress had been aquired in the aspects as follows
本論文對金魚草等幾種被子植物幼苗的初生結構、幼苗發育早期初生維管系統的發生和建成后初生維管系統的結構以及子葉衰老過程中的結構變化作了較為全面的研究,在以下幾個方面取得了一定的進展: 1Botanists have long known that the development of seeds and fruits often causes leaves to turn yellow and die.
長期以來植物學家認為種子和果實的發育往往使葉子變黃和枯死。During development of the seedling, the hypocotyl forms the lower portion of the stem from the radicle up to the cotyledons.
在幼苗發育期間,下胚軸從胚根到子葉的莖的下部形成。Cotyledons play an important part in the early stages of seedling development
子葉在種子發育的早期起到了重要的作用。2 comparative study on morphology in the light of the form of the materials, hup shows more approximate relationship with gri : they are 50 ~ 70cm high at the period of fructescence ; both are perennials and reproduce themselves by root stock, and especially, hup can also reproduce itself by branch roots and buds growing from stipes when the stems fall againt the ground, and then those buds develop into new bodies ; while gri can reproduce itself not only by vegetative propagation but by seeds. both of hup and gri characterize with bigger leaf blade and with the approximate form of simple leaf, with root stock, and with two - line seeds in one fruit
2形態學比較從形態上來看,新種hup與分佈海拔高度相近的gri比較接近:植株體高大,果期株高50一7ocm ;都為多年生,能以其根狀莖繁殖,但前者還以較為特殊的營養體繁殖後代,即倒伏后每個莖節上長出新的根和芽,發育成獨立的新植株,後者既能以營養體繁殖,又可通過種子繁殖;具有較大的葉片且單葉形態相近,果實內有二行種子(其它種為一行) . 。With the increase of substrate salinity, the accumulated sodium and chloride increased. as a result, all tissues had considerablly lower osmotic potentials than that of the solution on which they were grown at 60 day after planting. changes in length, dry weight, water content, ion concentrations, osomotic potential, ion content of hypocotyls during culture indicated that viviparous hypocotyls not only afforded nutrition for seedling growth, but also reserved ions, thus charged the balance of ion concentration and osmotic potential of the seedling
鹽脅迫下幼苗單株葉面積下降的程度大於光合速率的降低,葉面積的減小是導致減產的主要原因;木欖幼苗各組分中的離子濃度以及含量隨栽培時間而變化;栽培初期剛萌根時,幼苗原胚軸中的離子滲漏到培養液中;此後隨著根系的發育以及芽的生長,幼苗轉為從培養液中吸收離子,並以吸收na 、 cl離子為主。According to the statistics of main journals about late 50 years in our country, our phytologists pay attention to the comparative anatomy studies of the carpoplyte, such as the structure of vascular tissue, leaf and leaf epidermis, the structure and development of flower, the characteristic of seed and seed coat, the secretory tissue, some primitive carpophytes and so on
根據近50年國內主要期刊統計,我國植物學者重點在種子植物的維管組織結構、葉及其表皮結構、花的結構和發育、種子及種皮特徵、分泌組織以及一些原始種子植物等方面開展了比較解剖研究,為一些植物科、屬的系統分類提供了解剖學依據。This paper firstly focused on and evaluated the pollination characteristics of c. praecox, in half - natural habitat of nanjing. we investigated flowering phenology, flowering patten, pollen viability, stigma receptibility, species of visitors, visiting rate of visitors and their foraging behavior. and we also investigated its breeding system, including pollen - ovule ratio ( p / 0 ), out - crossing index ( oci ), pollen grains deposited in stigmas, pollen germination rate and seed set rate with different treatments, from 2002 to 2004
試驗分別在2002 - 2003年和2003 - 2004年冬季進行,研究內容包括:花期物候觀察、花部形態觀察和統計、雌雄配子體功能測定、訪問昆蟲種類、訪問行為、訪花頻率和效率;同時對蠟梅繁育系統進行了檢測,檢測內容包括花粉胚珠比( p / 0 ) 、雜交指數( oci )及不同處理花粉萌發率及結實率檢測等等,同時還進行了蠟梅與亮葉蠟梅傳粉過程比較。The study of isoflavones in leaves with the development of seeds showed that the content of isoflavones in leaves was much less than that in seeds. the correlation analysis showed there was marked negative correlation between them two. the activity of phenylalanine ammonia - lyase ( pal ) in different organ before seeding has been studied
種子發育時期,種子中異黃酮含量與葉片中異黃酮的含量呈負相關,達到極顯著水平,表明種子發育過程中,葉片中的異黃酮是逐漸向種子中轉移的。Soybean isoflavones distribution was investigated in vegetative growth period ( four stages before seeding ). the isoflavones in soybean seeds transferred from cotyledon to other organs and isoflavoids metabolized in organs with the growth of soybean plant
大豆營養生長期種子中貯存的異黃酮逐步由種子向子葉,繼而向其它器官(主要是葉片)轉移,不同器官在植株生長發育過程中進行著異黃酮類物質的代謝。分享友人