鄭在植 的英文怎麼說
中文拼音 [zhèngzàizhí]
鄭在植
英文
chung jae sik-
The host plants and the occurrence of bemisia tabaci ( gennadius ) on several major plants in zhengzhou region were investigated from 2003 to 2004
摘要調查了鄭州地區煙粉虱的寄主植物及其在幾種主要寄主植物上的發生動態。A, peony grey mould qqq is one of the most common diseases for tree peonies. this disease can occur during any season, young tree peonies with this disease always fall even wilt
灰霉病是世界上牡丹的重要病害之一，在我國也時有發生，上海鄭州等地較嚴重，該病在牡丹的生長季節均可發生，對幼嫩植株危害嚴重，引起幼苗的倒伏枯萎。This study dealt with the identification and evaluation of 8 maize populations from tropical and subtropical regions under the ecological conditions in zhengzhou, henan. results showed that the significant delaying days to shed and days to silk, discoordinating for the development of male and female, higher plant and ear height, more leaf numbers, high barreness, worse performance of ear traits compared with the ck ( temperate population ) were found, which showed the tropical and subtropical populations could not be utilized directly under the ecological conditions in zhengzhou. by using selection and improvement the tropical and subtropical populations can be used to broaden the genetic base of temperate maize breeding, beause of the greater genetic variation and higher selection potential within each population. the different performances of the sensitivity to photoperiod were observed among different tropical and subtropical populations and different traits. the asi, time to silk, ear height, leaf numbers, grain yield per ear could be used as the good evaluation traits for identifying the sensitivity to photoperiod
對8個熱帶、亞熱帶玉米群體在鄭州生態條件下的表現進行鑒定和評價，結果表明，熱帶、亞熱帶群體散粉、吐絲期顯著延遲，雌雄不協調，植株和穗位高、葉片數增多、空稈率高，結實性差，果穗性狀均明顯劣於溫帶對照，在鄭州生態條件下不能直接利用，但是群體內具有較大的遺傳變異和選擇潛力，可以用來拓寬現有玉米種質的遺傳基礎；不同熱帶、亞熱帶群體的光周期敏感性不同；不同性狀對光周期反應的敏感程度不同， asi 、吐絲期、穗位高、葉片數、穗粒重可作為鑒定光周期敏感性的較好指標First, the fact that the phenotypic variation in t1 mainly resulted from transformation of exogenous dna rather than ion beam mutagenesis was verified by rapd - pcr amplification to mutants, exogenous dna - transferred plants and ion beam - implanted plants. second, an absent band, marked by sieg - isso, was found in the rapd - pct amplification to t - 6 and its progenies, which meant that the corresponding mutation was hereditary. this mutation was located between exon 1791 - 2691 and exonl - 395 of abc - transporter gene
T - 6和其t2代植株的rapd - pcr擴增結果中均存在缺失條帶s _ （ 168 - 1850 ， ）表明該缺失條帶對應的變異是可以遺傳的，該變異發生在abc鄭州大學博士論文摘要介即sporter基因exon1791一2691和exonl一395之間。Though the technique of nuclejc transformation in plants has been developed and used widely, some problems in genetic information have not been resolved. for example, because the nucleic genome is so big and complicated that the integration sites and copies of foreign gene can not be controlled accurately, the expression of transferred genes is inefficient as a result of gene silencing or position effect. in nucleic transformation, furthermore, the transfer of multigene is difficult, and only after the prokaryotic genes undergo modification are they expressed in high plants
植物的細胞核轉化技術已發展成熟並得到廣泛應用，但核基因組的遺傳轉化仍存在一系列至今尚未解決的問題：例如由於核基因組大，背景復雜，外源基因的整合位點和整合的拷貝數難以人為控制，造成鄭州大學2003年博士學位論文杜氏鹽藻（ dunaliellasalina ）葉綠體轉化研究外源基因表達效率低，容易出現基因失活、基因沉默、位置效應等現象;同時轉入多個基因時操作步驟過于復雜，所表達的原核基因必須經過修飾改造，環境安全難以保證等。分享友人