Through investigation and study of the leaf blight disease of Lycium in 5 different areas in Mongolia, the pathogen was identified in-house as Alternaria tenuis Nees, biological characteristics of the pathogens, the bioassay of toxins from A. tenuis Nees, the pathogenic mechanism of toxin and the toxicity determination of the fungicide were studied.

通過(guò)對(duì)內(nèi)蒙古5個(gè)不同地區(qū)枸杞葉枯病的調(diào)查研究欧美综合色色，確定其致病菌為細(xì)鏈格孢菌，并對(duì)該菌的生物學(xué)特性亚洲精品在线观看视频免费、病原菌毒素活性檢測(cè)色九九在线视频精品9999、毒素的致病機(jī)理及幾種藥劑的室內(nèi)毒力進(jìn)行了研究。

Him through infrared spectroscopy to analyze the biological composition of the stones found serpentine leaf into a tremolite shows biological changes led to a stone, but also indirectly on its year long.

他通過(guò)紅外光譜欧美能看的一级片网站，分析了生物組成的石頭把透閃石發(fā)現(xiàn)葉蛇紋石顯示其年之久的生物變化導(dǎo)致了石頭q级毛片激情视频，而且還間接影響。

You have reproduced the plant vegetatively (leaf cutting or, in the case of a chimera, sucker propagation) through at least three generations, and the offspring have reproduced true to the original plant.

至少繁殖三代以上(葉子99日韩精品视频免费看，側(cè)芽或是砍頭繁殖)且繁殖的小孩的花朵顏色型態(tài)都要跟母株完全一樣日韩欧美黄色网。4。命名的方式要依據(jù)品種國(guó)際編碼中国农村黄色网站av。

The invention relates to a method for controlling virosis spread through plant leaf shearing, belonging to field of plant protection.

本發(fā)明涉及控制植物剪葉途徑傳播病毒病的方法在线视频中文一区二区三区，屬植物保護(hù)領(lǐng)域。

Through the reseach of the resistance mechanism, it was found that there was significant positive correlation between the density of leaf pore, the waxiness content, the phonel content and the resistance to the yam diseases.

本研究中山藥品種對(duì)炭疽病的抗性和酚類(lèi)物質(zhì)含量相關(guān)性最為顯著在线欧美国产二区，其相關(guān)系數(shù)到達(dá)0.90024学生妹人人操，蠟質(zhì)含量和氣孔密度與抗病性也顯著相關(guān)，相關(guān)系數(shù)分別為0.74098和0.646九九热线国产精品视频6。

Pseudoverticillata, but there was no significant change in Celtis wightii. There was no significant change in leaf area specific hydraulic conductivity K(subscript l between the two seasons in all the three species, which may caused by the adjustment in hydraulic architecture through partial loss of leaves during the dry season. In the dry season, maximum carbon assimilate rate A(subscript max was significantly lower than that of the wet season in all the three species.

除油樸的枝條邊材比導(dǎo)率K(下標(biāo) s在旱季和雨季沒(méi)有顯著性差異外在线看片免费人成视频无毒，尖葉閉花木和輪葉戟的K在旱季都有顯著的降低；而枝條的葉比導(dǎo)率K(下標(biāo) l三樹(shù)種在兩個(gè)季節(jié)間均無(wú)顯著變化女性裸体啪啪拍18禁无遮挡网站。K在旱季沒(méi)有顯著性降低欧美大黑吊操B，可能是常綠樹(shù)種在旱季通過(guò)脫落部分葉片以調(diào)整其水力結(jié)構(gòu)來(lái)保持較高的單位葉面積的水分供應(yīng)。

Twenty-three isolates of gray leaf spot pathogen, Cercospora zeae-maydis, collected from growing area of Northern China were clustered based on their soluble protein and isozyme profiles obtained through native PAGE in order to base physiologically the pathogen differentiation at protein or isozyme level.

利用聚丙烯酰胺凝膠電泳技術(shù)99riav5国产一区在线观看，對(duì)采自北方玉米主產(chǎn)區(qū)的23個(gè)玉米灰斑病菌菌株進(jìn)行可溶性蛋白質(zhì)和同工酶電泳圖譜分析及聚類(lèi)分析欧美性爱丝袜，從蛋白質(zhì)和酶學(xué)的多態(tài)性水平上分析玉米灰斑病菌的生理分化特征。

An efficient plant regeneration system through direct adventitious bud formation is established using leaf segments of asepsis seedlings of chicory(Cichorium intybus L.).

本研究以菊苣無(wú)菌苗葉片為外植體久久久久久免费精品久久久，建立了高效不定芽直接發(fā)生及其植株再生體系321影音。

Taking the seedlings of Dodonaea viscosa, Leucaena leucophala and Tephrosia candida as experimental materials, through drought stress treatment on pot seedlings with watering treatment group as control, the changes of leaf relative water content, relative plasma membrane permeability and proline content under drought stress were studied.

以金沙江干熱河谷主要造林樹(shù)種坡柳欧美黄色一级性交、銀合歡和山毛豆的苗木為實(shí)驗(yàn)材料，通過(guò)盆栽苗自然干旱脅迫欧美亚洲图片小说综合网，同時(shí)以澆水處理為對(duì)照亚洲妓女双渗透粗暴，探討了干旱脅迫下3樹(shù)種苗木葉片的相對(duì)含水量、質(zhì)膜透性以及脯氨酸含量的變化情況www.色色色色色色。

As for Leucaena leucocephala seedlings, MDA is not the main product of lipid peroxidation and Tephrosia candida seedlings do not only rely on SOD and POD action to reduce active oxygen content. Through comprehensive analysis on water holding capacity of leaf, cytomembrane permeability, MDA content and SOD, POD activity, Dodonaea viscosa seedlings show the highest drought resistance, then Leucaena leucocephala, Tephrosia candida the last.

干旱脅迫對(duì)銀合歡膜系統(tǒng)損傷生成的主要降解產(chǎn)物不是MDA欧美一区2区三区四区高清；山毛豆清除活性氧毒害作用主要不是通過(guò)SOD和POD的作用；通過(guò)葉片相對(duì)保水力測(cè)定及膜透性爱看AV在线、MDA相對(duì)含量自拍欧美、酶活性變化情況的分析，3個(gè)樹(shù)種中坡柳耐旱性最強(qiáng)色哟哟在线高清播放，其次為銀合歡国产在精品在线观看，山毛豆居后。