According to function requirement of the leaf cleaner, whole plan of the cleaner was decided elementally when the moving mechanism of leaf being striped from sugarcane was analyzed.

深入分析了整桿式甘蔗收獲機(jī)械設(shè)計(jì)開發(fā)的瓶頸——?jiǎng)內(nèi)~機(jī)構(gòu)的工作機(jī)理。提出了剝?nèi)~機(jī)構(gòu)的總體設(shè)計(jì)方案一级欧美黄色网站。

Papaya leaf curl China virus occurred widely and caused severe disease in papaya in the suburb of Nanning,Guangxi Province.In 2002—2004,the incidence rate reached 47.23%—100% in severely infected papaya fields,and the symptoms in infected papaya included stunt,downward leaf curling,dark green vein and enation,and petiole twist.

番木瓜曲葉病毒病在廣西南寧市郊區(qū)發(fā)生嚴(yán)重并造成很大經(jīng)濟(jì)損失国产模特性爱无码视频，經(jīng)2002-2004年調(diào)查，重病果園發(fā)病率高達(dá)47.23%-100%免费国产黄网站在线观看，染病番木瓜矮縮免费视频h片免费，葉片向下卷曲，葉背部葉脈增生，葉柄扭曲国产黄色性爱视频，早期染病植株無法開花結(jié)果免费在线观看视频被多人操。

The results indicated that the etiolation cause of the substrate mature leaf was the deficiency of available nitrogen in the soil. Spraying urea on the yellow leaves can turn the color of substrate mature leaf to green, but it does not have such effect on new shoots.

結(jié)果表明，土壤中有效N含量低是導(dǎo)致茶樹下部成葉黃化的原因www.99cao.com，噴施尿素能使下部成葉快速轉(zhuǎn)綠自慰一区二区，但并不能使上部新梢轉(zhuǎn)綠。

The physiological disease, leaf etiolation, can easily occur in young tea trees planted in brown soil with higher pH value (＞6.5) in Shandong province. All leaves of some trees turned yellow, some leaves of new shoots turned white to a certain extent or had some brown spots on the yellow leaf margin.

在山東pH偏高（＞6.5）的棕壤幼齡茶園中一级做a爰片久久毛片A片高潮，茶樹容易發(fā)生失綠黃化病癥，嚴(yán)重影響了新建茶園的成園速度308AV.COM。

They are 1 Cold-Temperate Mountain Hard-leaf Evergreen Oak Forest and 2 Temperate Needle and Broad Leaf Mixed Forest.

應(yīng)該重點(diǎn)保護(hù)的植被類型是：寒溫山地硬葉常綠櫟類林亚洲色AⅤ性色在线观看、溫涼性針闊葉混交林。

The results were as follows: Being infected virus, the electrolyte exosmosis rate of tobacco leaf was increased , while the increase rate of the leaf being injected ion was less than that of the control. The activities of SOD?

結(jié)果表明：病毒侵染后煙草葉片電解質(zhì)外滲率增大成人黄色在线播放，但離子注入后煙草的電解質(zhì)外滲率增幅小于對(duì)照很污的毛片视频网址一区；病毒侵染后煙草葉片的超氧化物歧化酶、過氧化物酶九九视频这里都是精品免费线看线看、硝酸還原酶的活性及葉綠素含量均有所下降日韩毛片基地在线高清观看，但離子注入后煙草的上述酶活降幅較小一级做a爰片性色刺激；CAT活性在接毒后呈先低后高的變化myfamily欧美性爱视频，而對(duì)照在接毒后 10天該酶活性高出離子注入煙草 2倍多，隨后劇降黄色首页入口在线观看，到接毒 2 5天時(shí)僅為離子注入處理煙株 1/ 2日韩有码中文字幕强奸乱伦播放器。

It also discussed the relationship between the main chemical compositions of tobacco leaf surface exudates and the aroma of tobacco leaf.

展望了煙葉腺毛及其分泌物的研究方向和途徑，提出煙葉腺毛及其分泌物研究的意義和目的亚洲美女黄视视频永久久久久。

Females had a significant preference for laying their eggs and feeding on primary leaf to trifoliate leaf of field bean.

雌蠅在豆苗之真葉與復(fù)葉上產(chǎn)卵或取食時(shí)日韩精品每天在线更新，均對(duì)豆苗之真葉具顯著偏好性。

In addition, the edges, veins, skeleton and fissility of plant leaf are also primary features for plant morphology. So we also studied the method of the automatic extraction of these structural features from leaf images, which is a necessary step to design an automatic plant species system.

另外久久人妻精品99，葉片的葉緣亚州一页、葉脈、骨架亚洲欧美一级A片在线播放、裂深等葉片結(jié)構(gòu)特征是植物數(shù)值分類學(xué)的主要分類性狀美女毛片永久免费观看App，也是植物形態(tài)學(xué)分類的依據(jù)，通過數(shù)字圖像處理技術(shù)實(shí)現(xiàn)這些性狀的自動(dòng)提取人人操,人人摸黄色，是計(jì)算機(jī)輔助植物物種識(shí)別的重要內(nèi)容和必然環(huán)節(jié)114黄色网站，所以對(duì)這些葉片結(jié)構(gòu)特征的自動(dòng)提取方法也進(jìn)行了研究。

The results showed that diploid and tetraploid had higher root activity, flagleaf soluble protein content, SOD and CAT activity before anthesis. However, the rootactivity, flag leaf soluble protein content, SOD and CAT activity of diploid and tetraploiddeclined more quickly and became lower than those of hexaploid species from 15 days afteranthesis. While MDA content increased more quickly and became higher than those ofhexaploid species from 5 days after anthesis. Correlation analysis showed that delaying the flag leaf senescence can promoted transfer of nitrogen and dry matter, increasedaccumulation of nitrogen and dry matter after anthesis, enhanced grain and protein yield.

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