It consists of the folowing five contents.(1) the seasonal change of leaf area index,(2) the seasonal change of ratio of leaf area, stem area and ear area to the sum area of these three foliage components,(3 )the seasonal change of leaf in clination,(4 )the seasonal change of optics of leaf, stemand ear,(5 )the seasonal change of upward reflectance of soil background.

具體內容包括：(1)葉面積指數的季相變化；(2)葉、莖、穆面積在它們總面積中比例的季相變化；(3)葉傾角分布的季相變化：(4)葉莖稱光學特性的季相變化(5)土坡背景垂直向上反射率的季相變化www.senpd.com，文中各項季相變化特征祖蓋的冬小麥生育期長日韩Aⅴ片免费观看视频。

The results in pot experiments showed that the leaf of caster oil plant, wheat chaff, the leaf of chinaberry and peanut cake have a significant control effect on root-knot nematode, reaching 70.44%、68.17%一级www性视频、56.09% and 54.92%, respectively. The similar results in plot experment were observed. The control effect of wheat chaff, chinaberry leaf, caster oil plant leaf and rapeseed cake was 71.55%欧美口爆、 69.99%、 63.14% and 62.19%, respectively.

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Configuration feature: Constant green small tree, gao Keda 8m, bark brown gray, crack, branch is arranged loose, ramose from bottom to top gradually short, establish body tower look, big branch up or bend downward slightly, rod is long and straight, up extend, 4 arris form, close top shows a circle, it is scale leaf completely, scale leaf hands in each other opposite on rod, clingy rod, see 3 impeller are unripe occasionally, scale leaf grows 1.5-3.5mm, pointed or tip acute is blunt, small incurvate, without candle pink, have gland system, gland body is elliptic, be located in a leaf back radical ministry, individual plant of different of male and female, rare with individual plant.

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Leaf alternation , the ellipse drape the point leaf , the leaf faces or bigger needle shape , the leaf predestined relationship opposes a book.

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In the GRID environment of ArcGIS, original format of digital image of the leaf was transformed sod the leaf image resolution made finer by using re-sampling functions. Leaf area was then extracted from the digital leaf image using self-ordained chroma diagnosis program in arc-macro language.

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F. pumila had the strongest capacity to adhere to walls, and it formed a quite good covering landscape by means of a large quantity of adventitious roots. Furthermore, it was tolerant to shade, and the effects of shading on its growth and landscape covering were very small. P. heterophylla had the rapidest growth and covering speed, and it adhered to walls by adhesive discs, but was defoliated in winter or after a long period of shading. The other three vines climbed walls using adventitious roots, and their adhering capacities were all relatively poor. However, E. fortunei still formed a relatively good covering due to its rapid growth and emerald leaf colour. After shading for four months, leaves of F, pumila, C. grandiflora, and P. serpens became thin, and accordingly their leaf weight per unit area significantly decreased. Shading also reduced chlorophyll contents of C. grandiflora and E. fortunei but enhanced those of F. pumila and P. serpens, It did not influence leaf thickness, leaf weight or chlorophyll content of P. heterophylla. Whether shaded or not, the relationship between Pn and PAR for each species could be expressed as y=alnx+b, and furthermore there was a significant (P.01) correlation between them. Pn and LCP values for all five lianas also significant (P.01) correlated. Shading reduced LCP values of P. heterophylla, C. grandiflora and E. fortunei but increased LSP of F. pumila.

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Different from the two-leaf-spring structure in the market right now, we applied one-leaf-spring as the suspension system. One design is the leaf spring of single cantilever beam and the other is the leaf spring of double cantilever beams.

有別於一般市面雙彈片架構，本文使用單彈片作為懸吊系統(tǒng)欧美人妻一级黄片，一款為單懸臂梁連結鏡座国产一级啪啪啪；另一款為雙懸臂梁連結鏡座。

The results showed that:Under NaCl stress,the reductions in the shoot and root dry weight, leaf area,stem diameter of grafted plant were lower than those of ungrafted plants.The Na~+ content,Na~+/K~+ ratio,Na~+/Ca~(2+) ratio in the leaf and scion stem of grafted plants were lower whereas those of in the rootstock stem ad root were higher than in ungrafted plants. The K~+ contents,soluble sugar contents,shoot water contents,SOD,POD,CAT,APX activity,the stability of AsA/DHA,Photosynthetic rate,transpiration rate and stomatal conductance were higher,whereas the MDA contents in the leaf of grafted plants were lower than that in ungrafted plants.The reductions in leaf area and stem diameter of grafted \'Jinchun No.2\' plants were more severe than those of grafted \'Zaoduojia\' ones.

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Leaves , stems and buds of colored-leaf trees are colorful , they are white, or yellow , or red, or orange etc., some colored-leaf trees are of two kind of colors, such as golden sprinkle in green leaves, or with golden edge, or different color in two faces of a leaf , some colored-leaf trees with leaves gradual changing amang yellow ,orange , red , purple.

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The total contents of phenol compounds of fresh Boehmeria nivea root was 200.24± 0.93 mg/g, which is 4.5 times higher than ethanol extracts of fresh Boehmeria nivea leaf, and its ability to remove ABTS free radical is 7.4 times higher than that of fresh Boehmeria nivea leaf, which is one third of Trolox's ability to remove free radical. Antioxidant components of hot water extracts of Boehmeria nivea leaf exhibited 55 and 67% lower than that of fresh leaf respectively.

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