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ritau
2020年09月01日
ritau
Yam is the common name for some plant species in the genus Dioscorea (family Dioscoreaceae) that form edible tubers. Yams are perennial herbaceous vines cultivated for the consumption of their starchy tubers in many temperate and tropical regions, especially in Africa, South America and the Caribbean, Asia, and Oceania. The tubers themselves, also called "yams", come in a variety of forms owing to numerous cultivars and related species. The name "yam" appears to derive from Portuguese inhame or Canarian (Spain) ñame, which derived from West African languages during trade. Although in both languages, this name is commonly referred to the plant taro (Colocasia esculenta) from the genus Colocasia, as opposed to Dioscorea. The main derivations borrow from verbs meaning "to eat". True yams have various common names across multiple world regions. A monocot related to lilies and grasses, yams are vigorous herbaceous vines providing an edible tuber. They are native to Africa, Asia, and the Americas. Some yams are also invasive plants, often considered a "noxious weed", outside cultivated areas. Some 870 species of yams are known, and 95% of these crops are grown in Africa. Yam plants can grow up to 15 m (49 ft) in length and 7.6 to 15.2 cm (3 to 6 in) high. The tuber may grow into the soil up to 1.5 m (4 ft 11 in) deep. The plant disperses by seed. [图片]The edible tuber has a rough skin that is difficult to peel but readily softened by heating. The skins vary in color from dark brown to light pink. The majority of the vegetable is composed of a much softer substance known as the "meat". This substance ranges in color from white or yellow to purple or pink in mature yams. A monocot related to lilies and grasses, yams are vigorous herbaceous vines providing an edible tuber.They are native to Africa, Asia, and the Americas. Some yams are also invasive plants, often considered a "noxious weed", outside cultivated areas. Some 870 species of yams are known, and 95% of these crops are grown in Africa. Yam plants can grow up to 15 m (49 ft) in length and 7.6 to 15.2 cm (3 to 6 in) high.The tuber may grow into the soil up to 1.5 m (4 ft 11 in) deep.The plant disperses by seed. The edible tuber has a rough skin that is difficult to peel but readily softened by heating. The skins vary in color from dark brown to light pink. The majority of the vegetable is composed of a much softer substance known as the "meat". This substance ranges in color from white or yellow to purple or pink in mature yams. Raw yam has only moderate nutrient density, with appreciable content (10% or more of the Daily Value, DV) limited to potassium, vitamin B6, manganese, thiamin, dietary fiber, and vitamin C (table). But raw yam has the highest potassium levels amongst the 10 major staple foods of the world (see nutritional chart). Yam supplies 118 calories per 100 grams. Yam generally has a lower glycemic index, about 54% of glucose per 150 gram serving, compared to potato products. [图片]The protein content and quality of roots and tubers is lower than other food staples, with the content of yam and potato being around 2% on a fresh-weight basis. Yams, with cassava, provide a much greater proportion of the protein intake in Africa, ranging from 5.9% in East and South Africa to about 15.9% in humid West Africa. As a relatively low-protein food, yam is not a good source of essential amino acids. Experts emphasize the need to supplement a yam-dominant diet with more protein-rich foods to support healthy growth in children. Yam is an important dietary element for Nigerian and West African people. It contributes more than 200 calories per person per day for more than 150 million people in West Africa, and is an important source of income. Yam is an attractive crop in poor farms with limited resources. It is rich in starch, and can be prepared in many ways. It is available all year round, unlike other, unreliable, seasonal crops. These characteristics make yam a preferred food and a culturally important food security crop in some sub-Saharan African countries.
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Miss Chen
2020年09月01日
Miss Chen
多肉黑法师属于景天科莲花掌属植物，它的叶片是紫黑色的，带有一种神秘感，具有很高的观赏价值，很多花友都想养殖多肉黑法师，但是不知道多肉黑法师怎么施肥，其实给多肉黑法师施肥很简单，春秋两季可20天氮肥，冬季可以一个月施一次磷、钾肥，其他时间可以不用施肥，这样才能养殖出美丽的黑法师。 [图片]一、多肉黑法师的施肥方法 1、薄肥勤施 多肉黑法师每次施肥时需要薄肥勤施，控制好施肥量，如果施肥过多会造成多肉黑法师徒长，如果施肥量少会导致生长不良，而且每次施肥后，都需要及时的给黑法师浇水，帮助它吸收养分。 2、施肥时间 每到春秋两季时，是多肉黑法师生长最旺盛的季节，可以每隔20天施肥一次。夏季天气炎热干燥，黑法师会处于休眠状态，可以不用施肥。冬季也需要施肥，可以每隔一个月施肥一次，在养殖黑法师时需要注意，在黑法师开花时，需要追一次肥，这样才能促使它开出来的花更加美丽。 3、选择肥料 对于多肉黑法师怎么施肥这个问题，需要选择好适合的肥料，每一种植物对养分的需求是不一样的，如果没选择好肥料，会出现徒长现象，黑法师在平时养殖时，可以施多肉专用肥，也可以施氮肥，在它开花期间，可以追加一次磷、钾肥，这样的肥料才能使黑法师生长的更好。 4、自制肥料 多肉黑法师也可以使用自制肥料，它需要的肥料制做起来很简单，只需要适量的、鸡鸭毛、猪毛、头发、牲畜蹄角用适量的水浸泡半个月就可以了，也可以用水果皮、烂菜叶来作为追加的有机肥，可以促使黑法师花开的更鲜艳更美丽。 二、多肉黑法师施肥的注意事项 1、幼苗施肥 在多肉黑法师的幼苗期，一定要注意大量施肥，因为这个时候的黑法师是很需要养分来养殖的，如果没有充足的养分，会使幼苗营养不良，影响黑法师生长，甚至可能造成死亡，所以需要及时的施肥，可以每隔半个月施一次氮肥，等待多肉黑法师的形态定下来就可以正常养殖了。 2、阳光需求 多肉黑法师是需要阳光才能生长的更好，才能使它开出来的花更加美丽，但在养殖黑法师的时候需要注意，每次施完了肥后，不能立刻放在太阳下照耀，很可能导致黑法师死亡，每次施肥后三天，再将它搬移到阳光处养护，这样可以促使它更好生长。 [图片]三、多肉黑法师的养殖注意事项 1、土壤要求 如果想养殖好多肉黑法师，不仅需要注意施肥方法，还要选择合适的土壤养殖，多肉黑法师需要土质疏松、排水性好的土壤，可以选择用腐叶土、泥炭、珍珠岩按照5：3：2的比例混合，这样的的混合土适合养殖黑法师，而且能够提高观赏价值。 2，适当浇水 多肉黑法师喜欢生长在潮气的环境下，不过每次不需要浇太多的水，保证土壤的湿润度就可以了，春秋两季可以每隔14～17天浇一次水，夏季也不能浇，因为多肉黑法师会处于休眠状态，可以每隔一周浇一次水，冬季可以根据土壤干湿度浇少，不能使土壤过于干枯，一定要注意及时浇水。 3、冬季保暖 多肉黑法师对环境温度也要注意，它适合生长在20～28℃，不能低于5℃，不然容易冻根，使多肉黑法师停止生长，对它造成很不好的影响，所以一定要注意冬季保暖，可以将它搬移的室内，将温度控制在5℃以上，帮助多肉黑法师安全过冬。 结语：通过上文的介绍，相信大家已经知道多肉黑法师的施肥方法，只需要了解4个步骤就可以施好肥，在平时养殖时给它适合的土壤，浇水方面注意，就可以养殖出美丽的多肉黑法师。
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Miss Chen
2020年09月01日
Miss Chen
吉娃莲怎么繁殖，播种/扦插/叶插三种繁殖方法 吉娃莲还有一个可爱的名字叫吉娃娃，但因容易与狗混淆，所以不常用。吉娃莲，植株小型，很多花友都喜欢桌面养殖，但吉娃莲怎么繁殖却很少人知道，不管的播种、扦插还是叶插都是十分容易操作的。 [图片]一、吉娃莲的繁殖方法 1、播种繁殖 吉娃莲播种繁殖一般都是从花卉市场上购买当年长成的的成熟种子，然后在杀菌液中浸泡一两个小时，自然晾干就可以播种了，适当浇一点点水，以免腐烂种子，一般温度控制在16～19度就可以发芽了。 2、扦插繁殖 一般选择在春末剪取成熟的饱满的叶子，剪时要注意剪平，减少植株受伤面积，等到伤口自然风干后，插入事先准备好的沙床中，放在半阴处，避免阳光直射，大概三周后就可以生根了。 3、叶插繁殖 叶插繁殖是吉娃莲最常见的繁殖方式，操作方便简单。那么这种方式吉娃莲怎么繁殖成功呢?只需在生长成熟健康的吉娃莲上，取下生长状况良好的叶片，平放在装有适当配土的盆中，把花盆放到温暖的环境下，但不要在阳光直射的地方就可以了，不久便会生根发芽。这种方法虽然操作简单，但是生长较为缓慢，形成独立的植株周期较长。 二、吉娃莲的养殖技巧 1、浇水 吉娃莲不需要太多的水分，但春秋季生长旺盛，需要保证一定的水分，土壤干透就可以浇一次，大概两周左右浇一次水，冬季期间只需要浇一两次水就好了，浇水时注意避免叶心积水，否则很容易被晒伤导致腐烂。夏季吉娃莲生长缓慢，适当选择早上或者晚上浇水，不需要浇透。 2、光照 吉娃莲喜欢阳光充足的环境，但是忌强光暴晒。夏季建议放在光线明亮、通风良好的地方养护。等夏季结束后，可以逐渐增加光照。 3、温度 吉娃莲不耐高温，夏天养殖较困难，温度超过30度，生长就会受到抑制。因此夏季要避暑，加强通风，节制浇水，浇水要选择晚上，当叶片出现透明有化水征兆的情况下，就要停止浇水了。冬季在低于5度时，就要控水或者断水。 [图片]4、土壤 一般选用透气性好的土壤就可以了，泥炭和珍珠岩的混合土或者沙质土壤就可以。最后再掺一点含钙质材料的骨粉，增加土壤的营养成分，但不可过多，引起营养过剩，导致吉娃莲无法吸收。 5、施肥 吉娃莲属于多肉植物，生长期缓慢，所以施肥不用太多，而且土壤本身就含有营养。在生长期施一点点薄肥即可，休眠期就要停止施肥了。 结语：以上就是吉娃莲的繁殖与养殖技巧，掌握这些，你的吉娃莲一定是生长得最好，叶片最饱满的。
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ritau
2020年08月30日
ritau
1. Plant produce that you and your family enjoy. To save the most money gardening, select vegetables that you like to eat and would normally buy at the grocery store. Do not plant vegetables that you would not purchase on a regular basis. 2. Choose vegetables that can be preserved, stored or frozen. By selecting vegetables that can be easily canned or frozen, you stretch your garden investment and may consume produce from your garden throughout the year. - Plant cool-weather vegetables like onions, potatoes, carrots, sweet potatoes and winter squash that can be easily stored. - Plant tomatoes, cucumbers, beans, corn, peas and beets that can be canned or frozen. 3. Grow vegetables that provide a high return on investment. Plant vegetables that are expensive to buy in the store, or that you consume in large quantities. Consider options like tomatoes, green beans, onions, peppers, squash, potatoes, peas, lettuce, beets, spinach, carrots, broccoli, cucumbers and Swiss chard. 4. Plant herbs for a high return on investment. In most areas, you can purchase a packet of seeds or a small herb pot for about $1.50, which will produce leaves for an entire growing season. In contrast, fresh herbs at the grocery story typically cost about $3 for a single-use packet. [图片]5. Select herbs that you use for culinary or household purposes. - Plant herbs that you frequently use in the kitchen, such as basil, rosemary, oregano or parsley. You can use the fresh herbs throughout the growing season, and you can dry the herbs for future use. - Plant herbs that you use for household purposes. Herbs like lavender or lemon verbena can be used as air fresheners, added to soaps or infused in oils. 6. Plant seeds for a higher return on investment. A packet of seeds is less expensive than a plant, and the yield is much greater. A seed packet can produce dozens of plants for less than a single established plant or a cell pack of seedlings. 7. Exchange seeds with friends. Because seed packets typically provide more seeds than you need for a single growing season, exchange seeds with gardening friends. By exchanging seeds, you get more varieties of produce and lower your seed costs. 8. Plant produce in stages. Rather than planting an entire crop of seeds at once, plant them in stages over the course of several weeks. This enables you to harvest in stages, and therefore consume the produce over time, rather than all at once. Succession planting allows a constant harvest in your garden, reducing the chance of produce waste. 9. Collect rainwater for irrigation. Purchase a commercially manufactured rain barrel, or modify an existing barrel to collect rain. The collected water can be used to water your garden, reducing your household water bill. [图片]10. Create compost from yard, garden and kitchen waste. Starting a compost pile is an easy way to make free fertilizer. The compost will improve the soil and eliminate the need to purchase commercial fertilizers for your garden. - Collect grass clippings, fallen leaves and kitchen waste like egg shells, coffee grounds, banana peels and leftover vegetables in a corner of your yard. - Rotate the compost using a pitchfork periodically. - Apply the compost to your garden as a free fertilizer.
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Miss Chen
2020年08月30日
Miss Chen
静夜，景天科拟石莲花属的多肉植物。静夜属于一种比较迷你的石莲花，个头非常小，易群生，日照充分的时候，叶尖会变红，非常可爱。一般情况下静夜还是比较容易开花的，对于花友来说静夜什么时候开花才是更需要关心的，今天我们就俩谈谈关于静夜的花期。 [图片]静夜的花期 一般来说静夜的花期在每年的2-4月份（不排除个别静夜花期逆天），开黄色的小花（如下图），也许有花友的静夜已经开花了，寻思着如何才能采收到静夜的种子，简单的说只要异株授粉，然后种荚成熟后就可以收获。 最后要告诉花友的是：景天科能自交的多肉植物非常少，也就是说同株收不到种子，包括有血缘关系的亲本也不可以，这就需要你手头至少有两株静夜且没有血缘关系的静夜同时开花，才能取到静夜的种子，不然就只能杂交。 [图片]静夜的繁殖方法 静夜是一种很容易萌发侧芽的植物，繁殖可在生长季节或结合翻盆，将老株旁边生长的小株取下，有根的直接上盆，无根的晾几天，栽后也能成活。 此外，还可在生长季节选取健壮充实而完整的叶片，晾3天~5天后，斜插或平放在土壤中，让共基部与土壤紧密结合，喷水后放在半阴处养护，保持土壤半干，不久基部就会生根，并长出幼芽。
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2020年08月30日
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高砂之翁为景天科石莲花属多肉植物，高砂之翁茎部粗壮，叶片莲座型密集排列，圆形，叶缘大波浪状皱摺。翠绿至红褐，新叶色浅、老叶色深。开橘色钟形花朵。那么高砂之翁是如何养殖的呢？养殖中又有什么好的方法呢？养殖高砂之翁又需要注意哪些事项的呢？请您带着疑问和我一起往下阅读吧！ [图片]高砂之翁的养殖方法(基本知识)： 最佳繁殖时间：高砂之翁采用枝插法与叶插法，全年都可以进行。 最佳生长土壤：高砂之翁配土以透气为主，土表铺设干净的颗粒河沙。 生长湿度要求：高砂之翁的生长湿度要保持一定湿度，不能过于干燥。 最佳生长温度：高砂之翁适宜温度：15-25 ℃。 最佳生长光照：高砂之翁喜阳光充足的环境，夏季可以接受全日照，高砂之翁只有接受充足日照叶色才会艳丽，株型才会更紧实美观。日照太少则叶色浅，叶片排列松散。夏季炎热时要注意通风、遮荫，避免强阳光直射。 养殖高砂之翁的注意事项： 施撒肥料： 高砂之翁在夏季可以不用施肥。 浇水要点： 整个夏季的休眠期少水或不给水，保持盆土稍干燥，到了9月中旬温度下来了，就开始恢复浇水，露天栽植的高砂之翁夏天还是可以正常生长的，休眠不太明显。，夏季多雨季节要注意不要被雨淋，否则会烂掉。 盆土更换： 高砂之翁是大型植株，随着生长的状态须每1-2年换盆一次，盆径可以比株径大1-2寸，这样可促进植株成长。 繁殖要点： 高砂之翁繁殖采用枝插法与叶插法，全年都可以进行。 病虫防治： 高砂之翁没有明显的病虫害。 养殖高砂之翁的心得： 花友风筝的案例 风筝虽然是露天养，一旦温度高于35度，就会移到明亮的散射光下慢慢断水，整个夏季的休眠期少水或不给水，到了9月中旬温度下来了，就开始恢复浇水，适应了露天环境的高砂之翁夏天还是可以正常生长的，休眠不太明显。冬季如果温度能够保持0度以上，都是可以给水的，0度以下就要断水，否则就容易冻伤。 冬季虽然寒冷，可也不是一个冬季都不给一点水，也会在适当的时候微微给点水在植株的根部，切勿喷雾或给大水，叶心水分停留太久，容易引起腐烂。春季温度上升后就可以慢慢恢复正常给水。 高砂之翁还是非常好养的一个品种，四季中除了夏季要注意适当遮阳，其他季节都可以全日照。土壤风筝用的是泥炭混合了颗粒的煤渣河沙等，土表铺设干净的颗粒河沙，配土以透气为主。
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Miss Chen
2020年08月29日
Miss Chen
茜之塔多肉看起来就像是一座座宝塔一样，奇特而美丽，具有极高的观赏价值。想要养好就需要掌握茜之塔的养殖方法和注意事项，特别是光照和浇水，掌控不好就容易生长不良和腐烂。当然土壤、温度以及肥料也是养好茜之塔的重点。 [图片]一、茜之塔的养殖方法 1、光照适宜 茜之塔喜光，在生长期间要给茜之塔足够的光照，如果光照不足，会导致茜之塔株形松散不够紧凑，宝塔的形状也会变得不好看，严重影响观赏价值。夏季的强光要适当的遮蔽，避免出现灼伤植株的状况。 2、适量浇水 茜之塔的加水方式和大多数多肉相同，要遵循“干透浇透”的原则，在春秋季节一周浇一次水，保持盆土湿润，等到土壤变干之后再浇水。而夏季的高温不要浇水太多，两周浇一次水即可。冬季的时候一个月浇一次水都行，避免冻伤。 3、土壤合适 在种植茜之塔的时候，要选择疏松的沙质土，要有良好的排水透气性。可以去花店购买专用的营养土，也可以自己用园土、粗沙或者蛭石等混合做培养介质。 4、把控温度 茜之塔忌高温闷热，在夏季高温的时候，茜之塔会进入短暂的休眠期，导致生长速度减慢。此时要将茜之塔移到阴凉通风的地方养护度夏。冬天的时候，茜之塔同样会进入休眠状态，可以耐5℃的低温，应该将其放在室内温暖向阳的地方过冬。 5、合理施肥 茜之塔本身是不怎么需要肥料的，想要它生长的更好，可以每隔半个月施加一次肥料，肥料以低氮、高磷钾的复合肥为主。施肥不可过多，容易导致烧根。施肥时也不要将肥液浇到叶片上，会造成灼伤的。 [图片]二、养茜之塔需注意的事项 1、合理换盆 在茜之塔的养殖方法和注意事项中，换盆是必不可少的。盆土的空间和营养都是有限度的，所以最好每隔1～2年就需要给茜之塔进行一次换盆，更换大一些的花盆，以及更加肥沃疏松的土壤，促进植株的生长更有利于爆盆。 2、病虫防治 茜之塔常见的病虫害是叶斑病和蚧壳虫。叶斑病会危害植株的叶片，叶片上会出现病斑然后逐渐扩大感染整个植株，可以喷洒代森锰锌药剂进行防治。而蚧壳虫会吸食茜之塔的汁液，导致植株生长不良，需要及时的人工灭杀，也可喷洒氧化乐果溶液进行防治。 3、适当繁殖 茜之塔的繁殖方法一般为分株、扦插以及播种，家养茜之塔最常见的方法就是扦插了，但这种成活率是比较低的，所以比较推荐分株繁殖。 4、叶片出色 如果养护的方法不到位，那茜之塔的小宝塔可能就只是绿色的，想要它的叶片呈现好看的颜色，就需要合理的进行光照，光照越是充足，叶片的颜色就会越发的好看，也会越有光泽。 结语：看完上面的内容，相信大家应该知道茜之塔的养护技巧了，平时多细心的照料，肯定能够轻松爆盆疯长的。
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Miss Chen
2020年08月29日
Miss Chen
小玉是多肉植物里，植株比较矮小的一种，推荐给没有养殖技术和懒人养殖，因为小玉很好养，具体小玉怎么养，给它透气的土壤、适当浇水，夏季保持通风、遮荫，其他季节直接放在阳光下照射，冬季温度低于5℃，将其移至室内养殖即可。 [图片]一、小玉的养殖方法 1、土壤 小玉是多肉的一种，养殖的土壤跟其他多肉一样，都需要透气、疏松和排水。可用腐殖或腐叶土加粗砂或珍珠岩制成。这样的基质可以保证根部呼吸、延伸、不积水。 2、光照和温度 小玉喜欢光照，尤其是春、秋和冬季的阳光。光照充足，小玉叶片的颜色会呈现紫红色，光照不足，将会是绿色;夏季高温，小玉停止生长，这时，将其放在遮阴的凉快的位置静养。 3、浇水 小玉生长期需水量大， 要经常浇水，保持盆土湿润。夏季，停止生长，较少浇水，同时注意排水通风，防止根部积水腐烂和病虫害的发生。冬季，温度低于5℃，小玉就要开始冬眠了，要停止浇水。 二、小玉的繁殖方法 1、扦插 学习了小玉怎么养，养好的小玉，就像一块绿宝石，下一步就是繁殖了。小玉可以扦插繁殖，操作很简单，直接剪下细小的分枝，将其放在阴凉的地方阴干3～4天，绕后插入事先准备的土壤中，浇透水，放在阴凉的地方，等待生根即可。 2、叶插 小玉养得好，叶片会很多，平时的落叶可以拿来繁殖爆盆，也可直接去植株上的叶片。将其背面朝下，放在湿润的土壤上，叶片尽量和土壤贴紧，保持土壤湿润，等待生根出苗。 [图片]三、小玉养殖的注意事项 小玉的生长速度很快，很容易爆盆，或是长满整盆，到时候会出现一个头重脚轻的问题，稍微不注意，就会把小玉的根带出来，因此，一般在根部周围放在石头，用石头压住浅根。 结语：小玉植株挨小，生长迅速，摆在家里很漂亮，喜欢的花友可以参考以上介绍的方法，自己在家养殖繁殖。
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ritau
2020年08月27日
ritau
Dahlia is a genus of bushy, tuberous, herbaceous perennial plants native to Mexico and Central America. A member of the Asteraceae (formerly Compositae) family of dicotyledonous plants, its garden relatives thus include the sunflower, daisy, chrysanthemum, and zinnia. There are 42 species of dahlia, with hybrids commonly grown as garden plants. Flower forms are variable, with one head per stem; these can be as small as 5 cm (2 in) diameter or up to 30 cm (1 ft) ("dinner plate"). This great variety results from dahlias being octoploids—that is, they have eight sets of homologous chromosomes, whereas most plants have only two. In addition, dahlias also contain many transposons—genetic pieces that move from place to place upon an allele—which contributes to their manifesting such great diversity. The stems are leafy, ranging in height from as low as 30 cm (12 in) to more than 1.8–2.4 m (6–8 ft). The majority of species do not produce scented flowers. Like most plants that do not attract pollinating insects through scent, they are brightly colored, displaying most hues, with the exception of blue. The dahlia was declared the national flower of Mexico in 1963.The tubers were grown as a food crop by the Aztecs, but this use largely died out after the Spanish Conquest. Attempts to introduce the tubers as a food crop in Europe were unsuccessful. Dahlias are perennial plants with tuberous roots, though they are grown as annuals in some regions with cold winters. While some have herbaceous stems, others have stems which lignify in the absence of secondary tissue and resprout following winter dormancy, allowing further seasons of growth. As a member of the Asteraceae, the dahlia has a flower head that is actually a composite (hence the older name Compositae) with both central disc florets and surrounding ray florets. Each floret is a flower in its own right, but is often incorrectly described as a petal, particularly by horticulturists. The modern name Asteraceae refers to the appearance of a star with surrounding rays. [图片]*History Spaniards reported finding the plants growing in Mexico in 1525, but the earliest known description is by Francisco Hernández, physician to Philip II, who was ordered to visit Mexico in 1570 to study the "natural products of that country". They were used as a source of food by the indigenous peoples, and were both gathered in the wild and cultivated. The Aztecs used them to treat epilepsy,and employed the long hollow stem of the (Dahlia imperalis) for water pipes. The indigenous peoples variously identified the plants as "Chichipatl" (Toltecs) and "Acocotle" or "Cocoxochitl" (Aztecs). From Hernandez's perception of Aztec, to Spanish, through various other translations, the word is "water cane", "water pipe", "water pipe flower", "hollow stem flower" and "cane flower". All these refer to the hollowness of the plants' stem. Hernandez described two varieties of dahlias (the pinwheel-like Dahlia pinnata and the huge Dahlia imperialis) as well as other medicinal plants of New Spain. Francisco Dominguez, a Hidalgo gentleman who accompanied Hernandez on part of his seven-year study, made a series of drawings to supplement the four volume report. Three of his drawings showed plants with flowers: two resembled the modern bedding dahlia, and one resembled the species Dahlia merki; all displayed a high degree of doubleness.In 1578 the manuscript, entitled Nova Plantarum, Animalium et Mineralium Mexicanorum Historia, was sent back to the Escorial in Madrid; they were not translated into Latin by Francisco Ximenes until 1615. In 1640, Francisco Cesi, President of the Academia Linei of Rome, bought the Ximenes translation, and after annotating it, published it in 1649-1651 in two volumes as Rerum Medicarum Novae Hispaniae Thesaurus Seu Nova Plantarium, Animalium et Mineraliuím Mexicanorum Historia. The original manuscripts were destroyed in a fire in the mid-1600s. "Stars of the Devil" In 1872 J.T. van der Berg of Utrecht in the Netherlands, received a shipment of seeds and plants from a friend in Mexico. The entire shipment was badly rotted and appeared to be ruined, but van der Berg examined it carefully and found a small piece of root that seemed alive. He planted and carefully tended it; it grew into a plant that he identified as a dahlia. He made cuttings from the plant during the winter of 1872-1873. This was an entirely different type of flower, with a rich, red color and a high degree of doubling. In 1874 van der Berg catalogued it for sale, calling it Dahlia juarezii to honor Mexican President Benito Pablo Juarez, who had died the year before, and described it as "...equal to the beautiful color of the red poppy. Its form is very outstanding and different in every respect of all known dahlia flowers.". [图片]This plant has perhaps had a greater influence on the popularity of the modern dahlia than any other. Called "Les Etoiles du Diable" (Stars of the Devil) in France and "Cactus dahlia" elsewhere, the edges of its petals rolled backwards, rather than forward, and this new form revolutionized the dahlia world. It was thought to be a distinct mutation since no other plant that resembled it could be found in the wild. Today it is assumed that D. juarezii had, at one time, existed in Mexico and subsequently disappeared. Nurserymen in Europe crossbred this plant with dahlias discovered earlier; the results became the progenitors of all modern dahlia hybrids today.
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Miss Chen
2020年08月27日
Miss Chen
如今的多肉植物越来越受到人们的欢迎，新玉缀在众多的多肉植物中可以说是非常受欢迎的一种了，又叫做新玉串，肉肉的看起来十分可爱。很多人们误以为多肉植物是不需要浇水的，其实这是一个很大的误区，关于新玉缀怎么浇水很多人们都不了解，只要注意夏季多浇、冬季少浇就可以了。 [图片]一、新玉缀的浇水方法 【春季浇水】：新玉缀这种多肉植物在生长的过程中也是需要水分的，一般在春季的时候温度适宜，这个是每个月给其浇一次水即可，注意经常观察土壤的干湿程度。 【夏季浇水】：夏季温度天气炎热，温度过高，所以我们在养护新玉缀的过程中，也要注意多浇水，一般每隔半个月一次是最适宜的，夏季掌握到正确的浇水方式还可以给新玉缀降温。 【秋季浇水】：到了秋季的时候新玉缀怎么浇水呢，如果是初秋季节，这个时候还稍微有一些夏季的热度，我们依旧是半个月浇一次水，不过到了秋季末期就要开始减少浇水的次数以及浇水量了。 【冬季少浇水】：一般到了冬季时期，大部分的新玉缀都基本上处于休眠的时期，这个时候可以减少浇水，一个月一次即可，浇水量也要减少为原来的二分之一。 [图片]二、新玉缀浇水注意事项 1、清晨浇水 在家庭养殖新玉缀的时候，最好是在清晨太阳出现之前，给新玉缀进行浇水工作，千万不能在正午十分浇水，这样很容易导致太阳将其灼伤，导致新玉缀死亡。 2、不要浇到叶片 由于新玉缀的叶片十分脆弱，所以我们在给其浇水的时候，要浇在其土壤之上，千万注意不要浇到它的叶片上，否则新玉缀叶片上薄薄的白粉会因为浇水、轻轻触碰一下就会掉落。 3、夏季喷水 在夏季温度高天气炎热的情况下，我们可以在新玉缀其伸张环境的周边进行喷水工作，可以增加空气环境的潮湿度，让植物生长得更加翠绿旺盛。 4、如何判断是否浇透 我们在给新玉缀浇水的时候，要注意一次浇透，但是很多花友们不知道怎么判断是否浇透了水。其实方法也很简单，我们在浇水之后，可以在其花盆底部观察是否在滴水，如果有滴水那么则是浇透了。 结语：通过上文的介绍，相信大家都知道了新玉缀的浇水方法，以及新玉缀浇水注意事项，希望花友们都可以在家里养殖出美丽的新玉缀!
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