Parthenocissus tricuspidata leaves small, a bit like a locust tree leaves, many leaves together to form a site on the beautiful patterns.

爬山虎的葉子小小的9cao在线播放精品日韩，有點(diǎn)像槐樹的葉子，許多葉子聚集在一起91超碰一区二区三区，就組成了一幅幅美麗的圖案欧美激情性A片三p。

The leaves of most orchids are perennial, that is they live for several years, while others, especially those with plicate leaves, shed them annually and develop new leaves together with new pseudobulbs.

大多數(shù)蘭科植物的葉子是多年生的，那就是說它們可以生長(zhǎng)數(shù)年天堂AV网站www，當(dāng)其他植物性视频在线视频网站，尤其是那些有褶皺葉片的，每年地落葉和長(zhǎng)出新葉以及新的球莖的時(shí)候日批视频网站免费看。

The results of observation on the microstructure of Karelinia caspica, Tamarix stromongolica, Salsola collina. Cheno Dodium glaucum, stipa bangenana show that the nutritional organs of these halophytes present some adaptability structures as follows:(1) sunken stomas, thick cuticle and orderly arrangement of epidermal cell;(2) equilateral leaves with developed palisade tissue, or squama-shaped leaf;(3) well-developed water-storing tissue in stems and leaves;(4) crystal cells, salt glands in most of the leaves and assimilating branches.

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Leaves alternate, sessile, fleshy; lower leaves linear, semiterete; upper leaves narrowly elliptic, flattened.

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The results showed that glucose and fructose are primary soluble sugars from night to 10: 00 a.m. in mature leaves, but during 13: 00 - 16: 00 p.m., stachyose becomes the most abundant oligosaccharide, this diurnal change is mostly due to the tempestuous fluctuation of stachyose concentration in mature leaves. During photoassimilate transportation, the p rimary soluble sugar in phloem sap is stachyose. When transportation is finished, sucrose becomes the main sugar in phloem sap. Cucumber leavesmay store photoassimilate in the forms of starch, glucose, fructose, stachyose and sucrose at night. The concentrations of glucose, fructose and stachyose in phloem sap are much lower than in leaves at that time. There may be some unique mechanisms modulating source-sink translocation by which soluble sugars in leaveswere prevented from loading into the phloem further during night.

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The results showed that some characters, such as shape of leaves and tooth number of leaf-margins, were not taxonomically reliant characters since they varied greatly within the same group; while the characters, such as hairs on leaves, venation of leaves, length and color of flowers or inflorescences, and length of fruits, were good characters for the classification of Stachyurus as they are usually stable.

結(jié)果表明：葉片形狀、葉緣齒在线看羞羞漫画、花序下的葉片是否宿存以及花序是否具花序梗等性狀在種間變異非常大人人操人人插人人摸人人干，單個(gè)性狀對(duì)旌節(jié)花屬屬下分類意義不大；而葉片毛被日韩精品芒果视频下载免费观看、脈序和結(jié)構(gòu)精品国产丝袜自在线拍动漫，花序長(zhǎng)度，花的大小和顏色以及果實(shí)大小等性狀通常較穩(wěn)定黄色A片网站在线观看，可作為旌節(jié)花屬劃分種和變種的重要依據(jù)。

Leaves began to shape from the end of March until September, and the growth of young leaves terminated in November. In February or March of the next year, the leaves shot out of the ground. Finally, they withered in May. In addition, 4 phases exist in the process of leaf shaping (buttress forming, primordium, straplike leaf and sheath). At first, the leaf primordium shapes the zonary leaf, and then the plaits are formed at the bilateral base of the zonary leaf. Finally, the plaits close and form sheaths.

結(jié)果發(fā)現(xiàn)：中國(guó)石蒜的葉片在3月底開始分化日韩一区在线AⅤ，9月分化結(jié)束亚洲欧美xx，11月，幼葉生長(zhǎng)停止国产午夜无码精品免费看，并於翌年2国产丝袜在线、3月露出地面，5月即枯萎免费无码国产一级，完成生活史亚洲国内综合久久图片一区；葉片的形成經(jīng)歷4個(gè)階段，即葉原座形成時(shí)期在线无遮挡又爽又刺激的视频、葉原基生長(zhǎng)時(shí)期欧美国产极品免费区、帶狀葉片的形成以及葉鞘的形成時(shí)期；葉原基先形成帶狀葉片99精品在线a，隨后在其基部?jī)蓚?cè)形成褶老子影院在线，進(jìn)而閉合發(fā)育成葉鞘。

Leaves began to shape from the end of March until September, and the growth of young leaves terminated in November. In February or March of the next year, the leaves shot out of the ground. Finally, they withered in May. In addition, 4 phases exist in the process of leaf shaping (buttress forming, primordium, straplike leaf and sheath).At first, the leaf primordium shapes the zonary leaf, and then the plaits are formed at the bilateral base of the zonary leaf. Finally, the plaits close and form sheaths.

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The results indicated that the growth of 3-year-old Prunus salicina was significantly higher than that of the other species, such as 139.1% and 153.7% higher than Toona sinensis and Juglans regia in height growth, respectively. The maximum percentage of DBH more than 1.0 cm was 91.9% for P. salicina. Next were 49.5% and 48.8% for Ulmus pumila and Pteroceltis tatarinowii, respectively. The contents of total N, total P and total K ranged from 1.36% to 2.52% in the leaves of testing species. The highest content of total N and total P was found in the leaves of Catalpa bungei, while the highest content of total K was observed in P. saltcina leaves. The results indicated that P. salicina, P. tatarinowii, U. pumila had well adaptability on the Karst area both in the growth status and the improvement to the soil with the fallen leaf.

結(jié)果表明：(1)3年生冰脆李的生長(zhǎng)量明顯優(yōu)于其他樹種，其高生長(zhǎng)比香椿欧美日本一道本免费三区、核桃分別大139.1%和153.7%日本免费一级高清婬日本片欧美；植株胸徑大于等于1.0 cm株數(shù)的百分比以冰脆李最高達(dá)到91.9%，其次是榆樹和青檀久久视频这里只有久久视频，分別是49.5%和48.8%丰满又黄又爽少妇毛片；(2)8個(gè)樹種落葉的全N、全P和全K的總含量變動(dòng)為1.36%~2.52%四虎成人入口在线观看网站视频，其中全N色色婷婷色婷色色、全P含量以滇楸最高，全K含量以冰脆李最大免费黄色网业在线看；(3)從各樹種落葉前后各元素含量及其轉(zhuǎn)移情況看www.99riav.com，冰脆李、青檀表現(xiàn)出對(duì)大部分營(yíng)養(yǎng)元素具有較高的循環(huán)利用養(yǎng)分或保持養(yǎng)分的能力中文字幕老熟女一区二区，而香椿及刺槐相對(duì)較弱艹逼黄片。

GUS staining shows that GUS gene was expressed in stems, leaves, calyxes, stamens and siliques in transgenic Arabidopsis plants, with higher expression in green tissue such as stems, leaves, siliques, while invisible in roots, petals, and seeds. The data indicate that MPBQ MT gene promoter was likely to be expressed preferentially in green tissues such as stems, leaves, and young siliques.

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