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General yellow-green or yellow interveinal chlorosis of fully expanded and younger leaves with major veins and most minor vein clearly defined green without appreciable adjacent green lamina; some younger leaves with profuse interveinal brown necrotic spotting.

甜菜缺铁:完全展开叶的脉间褪绿一般黄绿色或黄色,嫩叶的主脉和大部分侧脉明显显示绿色没有可察觉的相连的薄层;一些嫩叶脉间有大量褐斑。

Leaf base with a broad sinus; flower buds broadly ovate; corolla glabrous; stigma head conical, not exserted from corolla tube; follicles puberulent, muricate, or rugose

叶基部具一宽的凹缺;花芽宽卵形;花冠无毛;圆锥状的柱头头状花序,并非从花冠筒外露;被微柔毛,粗糙的蓇葖果,或具皱纹 2 Metaplexis hemsleyana 华萝

Comparison results revealed that there was significantly reduced functional connectivity in the left posterior cingulate cortex, vbilateral anterior cingulate cortex, bilateral medial prefrontal cortex, left parahippocampal cortex in MHE patients, while functional connectivity increased in the right precuneus.

但与正常对照组相比,MHE患者大部分脑缺省模式网络脑区功能连接降低,包括:左侧后扣带回、双侧前扣带回、双侧额中回、左侧海马旁回;而右侧楔前叶的功能连接较正常对照组升高。

Meanwhile, the fluidity, Wet ability, dispersive ability, suspension capability, Whipability, physical and chemical ability, granule, water content and alkalinity acidity act were up to the wettish powder quality standard of Chinese and FAO.

波尔多液营养保护剂含有一定量的水溶性铁、锌,与CK相比,喷施BNPP-NFe、BNPP-Zn、BNPP-Fe-Zn后,番茄叶片叶绿素、活性铁以及根、茎、叶中全铁、全锌含量都有显著提高,能够矫治番茄缺铁、锌症状。

In addition, we found that 4-phenyl-l,2,4-triazolinium N-ylides reacted withvarious electron-deficient olefins to afford pyrrole derivatives in good yields via 1,3-dipolar cycloaddition oxidative ring fission, In some cases, tetrahydropyrrolo[1,2-b]triazole and pyrrolo[1,2-b]triazole, which are stable and are not aromatized orcleaved in the reaction conditions, could be isolated, This is a facile and novel route forthe synthesis of pyrrole derivatives.

此外,本文研究了五员三氮杂环化合物4-苯基1,2,4-三氮唑的N-叶立德,发现在氧化剂存在下与缺电子烯烃发生1,3-偶极环加成反应生成的吡咯并[1,2-b]三氮唑,在大多数情况下开环生成吡咯衍生物,反应条件温和,收率良好,是合成吡咯衍生物的一个新的途径。

All ofthese reactions were carried out under mild conditions and are new effective methodsfor the preparation of indolizine derivatives. The reaction of phthalazinium and quinoxalinium N-ylides with electron-deficientolefins in the presence of oxidants have also been studied, it has been found that activemanganese dioxide could behave as a dehydrogenating oxidant. Pyrrolo[2,1-a]phthalazines and pyrrolo[1,2-a]quinoxalines are obtained in this way.

本文还对六员二氮杂环化合物酞嗪和喹喔啉的N-叶立德在氧化剂存在下与缺电子烯烃的l,3-偶极环加成反应作了研究,发现活性二氧化锰也是一个优良的氧化剂,并分别合成得到了吡咯并[2,1-a]酞嗪和吡咯并[1,2-a]喹喔啉衍生物。

Peach_pink,Lotus_shaped;flowers inclining to one side;short bloom shoots,small,pointed deeply toothed leaves with with bluish green stalks,half_spreading.

桃红色,蔷薇型。花茎较短,花朵侧开。叶柄青绿色,叶小尖,缺刻深。株型半开张。中文:航行试验前应依据&倾斜试验大纲&进行倾斜试验,并在消除了倾斜试验之中所发现之问题和缺陷并在船级社及船东同意之后才能进行航行试验。

Japonica and 1.3 cm of U.pinnatifida which showed heterosis in growth during the temporarily sea cultivaton. The phenotypic character of F_1 juvenile sporophyte of L.japonica♀×U.pinnatifida♂was similar to that of the female parent, namely, L.japonica which generated no rudiments of the pinnate lobations.

海带♀×裙带菜♂杂交组合的受精率为20-33%,在暂养期间F_1幼孢子体达到2.2 cm,大于海带、裙带菜幼孢子体的1.8 cm和1.1 cm,表现出生长优势;F_1幼孢子体表现出母本海带的性状,无裂叶缺刻雏形的形成。

Common aquatic plant of eastern North America having floating and submerged leaves and white yellow-spotted flowers.

北美东部产的一种普通水生植物,飘浮叶长圆形至倒卵形,基部常具缺刻,花白色,有黄斑点。

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