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按照生長階段修剪主枝側(cè)枝、首先,管理人員應(yīng)當(dāng)按照紫薇植株的不同生長階段針對其主枝和側(cè)枝進行修剪。受到病蟲害、生長側(cè)重、生長方向、水熱環(huán)境等客觀因素的影響,古董花瓶云南貴州紫薇造型修建一些紫薇植株可能會在不同生長階段當(dāng)中出現(xiàn)枯枝、病枝等現(xiàn)象,這些枝葉不僅會與健康枝條爭奪營養(yǎng),還嚴重影響了植株的藝術(shù)美感與觀賞價值,因此亟待園林管理人員對其進行剪除和修整。技術(shù)人員可在紫薇幼樹定植以后,針對其枝條發(fā)育情況進行全面分析和選定,古董花瓶云南貴州紫薇造型修建并選擇生長條件較好、發(fā)育狀態(tài)較佳的枝條作為主枝進行培育,之后按照園林景觀設(shè)計需求培育三至四條側(cè)枝,針對出現(xiàn)病害或凋亡的枝葉進行剪除,使植株內(nèi)部營養(yǎng)分配更加均衡,生長勢頭更加良好。
種子萌發(fā)實驗設(shè)計、經(jīng)研究發(fā)現(xiàn)、種子剛成熟采收時,種子的生活力和萌發(fā)率都很低;當(dāng)種子干燥儲存 2 個月后,生活力和萌發(fā)率都較高,隨著存儲時間的增加,北京和河北紫薇老樁編織生活力比較穩(wěn)定,差異不大(內(nèi)部資料,未發(fā)表)。實驗選取保存 2 個月的成熟飽滿種子放于小燒杯,用清水浸泡 24 h,然后用不同濃度梯度的 GA3、TDZ、IAA、6-BA 和 NAA(表 1)浸種 2 h,之后用無菌水沖洗 3 次。清水浸種 24 h 作對照(CK),每個處理 50 粒種子,北京和河北紫薇老樁編織每處理重復(fù) 3 次。將處理好的種子置于墊有 2 層濾紙的培養(yǎng)皿中,排列整齊,在人工氣候箱(07 : 00~19 : 00,30 ℃,光照強度 75 μmol/(m2·s),濕度 90%;19 : 00~07 : 00,25 ℃,光照強度 0,濕度 90%)。
修整紫薇樹形,提升觀賞價值毛萼紫薇(Lagerstroemia balansae)為千屈菜科(Lythraceae)紫薇屬(Lagerstroemia)植物,分布于老撾、越南和泰國等地,四川和貴州紫薇造型基地中國僅分布于海南西南部低海拔山地雨林中[1-2]。毛萼紫薇樹姿優(yōu)美,花色艷麗多彩,亦是園林景觀的好樹種。在園林生產(chǎn)中,種子繁殖是擴大毛萼紫薇幼苗主要的生產(chǎn)方式。然而,調(diào)查發(fā)現(xiàn),毛萼紫薇結(jié)籽率雖然很高,萌發(fā)率和成苗率卻很低,極大地限制了其園林應(yīng)用。因此,四川和貴州紫薇造型基地提高毛萼紫薇種子的萌發(fā)率,對充分利用種子進行實生擴繁顯得十分重要。
Large sales, wholesale prices for all market bases, different sizes and specifications, tree height, price, crown width, color, diameter, old pile shaped bonsai of crape myrtle, big red, pink, purple, tree crown width of 3 meters, crape myrtle tree height of 2-5 meters, shipped to: Fujian antique vase shape, Zhejiang peacock, Guizhou vase size shape, Hainan yurt, Guangxi animal shape, Hubei gate and yurt shape weaving, Jiangxi, Hunan Hubei chair weaving, Shaanxi stool shaped crape myrtle tree, Jiangsu crape myrtle old pile wholesale, Yunnan and other provinces, prices are easy to negotiate, and usually these valuable items are delivered to your doorstep.
Prune the main and side branches according to the growth stage. Firstly, management personnel should trim the main and side branches of the crape myrtle plant according to its different growth stages. Affected by objective factors such as pests and diseases, growth emphasis, growth direction, and hydrothermal environment, some crape myrtle plants constructed in the shape of antique vases in Yunnan and Guizhou may exhibit withered branches, diseased branches, and other phenomena during different growth stages. These branches and leaves not only compete with healthy branches for nutrition, but also seriously affect the artistic beauty and ornamental value of the plants. Therefore, it is urgent for garden management personnel to prune and trim them. Technicians can conduct a comprehensive analysis and selection of the development status of the branches of the crape myrtle saplings after planting. Antique vases are constructed in the shape of crape myrtle in Yunnan and Guizhou, and the branches with the best growth conditions and development status are selected as the main branches for cultivation. Afterwards, three to four side branches are cultivated according to the requirements of the garden landscape design, and diseased or apoptotic branches and leaves are pruned to achieve a more balanced distribution of nutrients within the plant, The growth momentum is even better.
The experimental design of seed germination, research has found that the vitality and germination rate of seeds are very low when they are just ripe and harvested; After 2 months of dry storage, the viability and germination rate of the seeds were both high. With the increase of storage time, the viability of the old pile weaving of Ziwei in Beijing and Hebei was relatively stable, and the difference was not significant (internal data, unpublished). Mature and plump seeds stored for 2 months were selected for the experiment and placed in a small beaker. They were soaked in clean water for 24 hours, followed by soaking with different concentration gradients of GA3, TDZ, IAA, 6-BA, and NAA (Table 1) for 2 hours. Afterwards, they were rinsed three times with sterile water. Soak the seeds in clear water for 24 hours as a control (CK), with 50 seeds in each treatment. Repeat the weaving of Beijing and Hebei Ziwei old piles 3 times in each treatment. Place the processed seeds in a culture dish with 2 layers of filter paper, arrange them neatly, and place them in an artificial climate box (07:00~19:00, 30 ℃, light intensity 75 μ Mol/(m2 · s), humidity 90%; 19: 00~07:00, 25 ℃, light intensity 0, humidity 90%).
Trim the shape of the crape myrtle tree and enhance its ornamental value. Lagerstroemia balanasae is a plant of the Lythaceae family and the Lagerstroemia genus, distributed in Laos, Vietnam, and Thailand. The Sichuan and Guizhou crape myrtle modeling bases are only distributed in the low altitude mountainous rainforests of southwestern Hainan in China [1-2]. The hairy calyx crape myrtle tree has a beautiful appearance and colorful flowers, making it a good tree species for garden landscapes. In garden production, seed propagation is the main production method for expanding the seedlings of Lagerstroemia japonica. However, the investigation found that although the seed setting rate of Lagerstroemia tomentosa is high, the germination rate and seedling rate are very low, greatly limiting its garden application. Therefore, improving the germination rate of Ziwei seeds in Sichuan and Guizhou is crucial for fully utilizing the seeds for seedling expansion and propagation.