老张谈一下松露玉----根系几乎没有用的一种植物。

老张谈一下松露玉----根系几乎没有用的一种植物。:松露玉(B.liliputiana)是南美球系中最有特色的品种之一,虽然有过一些多种的划分

老张谈一下松露玉----根系几乎没有用的一种植物。
松露玉(B.
liliputiana)是南美球系中最有特色的品种之一,虽然有过一些多种的划分,但是目前基本统一认定为一属(Blossfeldia)一种。上面是我自己养的一盆
松露玉不仅仅是南美球系中最有特色的品种之一,并且可能称得上是最奇特的仙人掌科植物了。为什么呢?除了松露玉保持着一项吉尼斯世界纪录的个头最小的仙人掌植物外,更重要的是它有一种特殊的生理功能,这还要从陆生植物对水分条件的适应性说起。
根据陆生植物对水分条件的不同,分成变水植物和恒水植物两大类。那么变水植物是什么呢?
变水植物没有良好的保护组织,体内水分完全受外界环境的影响,当环境干燥时,这些植物体内的水分迅速蒸发丧失,全株风干处于休眠状态。这些能高度忍耐脱水能力的植物,一旦获得水分(如雨、露、水汽等),可以迅速恢复积极的生命活动。变水植物主要包括一些低等植物,如地衣、苔藓等,但是在维管束植物中,这种耐旱的变水植物很少见,而松露玉恰恰是高等植物中罕见的个例。
松露玉-特殊的生理特点
它是绿色植物中,体表气孔密度最低的,低到几乎没有的程度;它可以承受严重枯萎,在失水多达80%以上的情况下,通过水的浸泡实现恢复外观;它的根,基本上没有吸收能力,主要体表直接进行气、水、营养物等物质交换。松露玉的花其实没什么欣赏价值,特别是单花,因为实在太小了,当然如果群生群开,倒也算壮观。松露玉属于自花授粉的品种,说实话,如果不能自花授粉,还真不知道该怎么给这么小的花授粉,恐怕小蜜蜂也无从下嘴吧(我估计只有挖花仙女等极个别手法相当精致的人才办得到,嘿嘿)。正因为可以自花结果,所以只要肯开花,果子是不愁没有的。当然花小,果子也小,种子那就更细小了,远比花笼、菊水等种子小多了,所以一个小果子里藏着几百粒小种子(没法数,只能估)。
松露玉-繁殖
松露玉的繁殖主要通过两种方式(嫁接另当别论,因为似乎没有仙人球不能嫁接的),一个当然是播种,另一个是分株,能否通过子球扦插,没有试过,也没有见过相关介绍。
松露玉的播种,那是相当考验耐心的,主要是松露玉本身就是最小的仙人球,成球个体一般也在1CM左右,加上生长速度比较慢,特别是幼苗期,所以很容易让人失去信心。另外,种子发芽率不好把握,播种方法和一般仙人球都一样,没有特别处理,但是有关资料说是松露玉短暂冷藏有利于发芽。
在种植上,由于松露玉自身奇怪的生理特征,事实上非常容易种植,日常养护上,主要是加强喷雾,保持一定空气湿度,可以闷养。但是要种的很理想,却也不易。
这里所谓的很理想,主要是指让松露玉保持怎么样的一种形态而言。因为虽然松露玉能在几乎完全干燥的条件下生存,但是松露玉并不喜欢强光以及过度的干燥。所以问题就来了,如何把握光照强度的问题?因为如果光照不够,湿度过大,虽然生长速度会加快,但是球体会长的过分翠绿,处于一种徒长状态,反之,如果光照过强,湿度不够,生长速度变慢,球体容易发黄(想想地衣的生长就知道了,地衣也是耐旱植物,从这个角度看,和仙肉植物也算是一类的)

如何种好多肉植物 国外大仙谈体会。老张认为说的不错。

如何种好多肉植物  国外大仙谈体会。老张认为说的不错。
此人讲的还是不错的,主要从光,水,温度,肥料四个方面讲的。有兴趣的同学可以看下。
Succulents are booming in popularity for two simple reasons:
they are beautiful and nearly indestructible.
Technically, a succulent is any plant with thick, fleshy
(succulent) water storage organs. Succulents store water in their
leaves, their stems or their roots. These plants have adapted to
survive arid conditions throughout the world, from Africa to the
deserts of North America. Fortunately for us, this adaptive
mechanism has resulted in an incredible variety of interesting leaf
forms and plant shapes, including paddle leaves, tight rosettes,
and bushy or trailing columns of teardrop leaves.
As a group, succulents include some of the most well-known
plants, such as the aloe and agave, and many almost unknown plants.
Cacti are a unique subset of the succulent group. Succulents make
excellent display plants in dish gardens.
No matter what kind of succulent you're growing, the rules are
pretty similar between the different species. Here are the general
rules for growing top-quality succulents:
Light:
Succulents prefer bright light, such as found on a
south-facing window. Watch the leaves for indications that the
light level is correct. Some species will scorch if suddenly
exposed to direct sunlight. The leaves will turn brown or white as
the plant bleaches out and the soft tissues are destroyed.
Alternatively, an underlit succulent will begin to stretch, with an
elongated stem and widely spaced leaves. This condition is known as
etoliation. The solution is to provide better light and prune the
plant back to its original shape. Many kinds of succulents will
thrive outdoors in the summer.
Temperature:
Succulents are much more cold-tolerant than many people
assume. As in the desert, where there is often a marked contrast
between night and day, succulents thrive in colder nights, down to
even 40oF. Ideally, succulents prefer daytime temperatures between
70oF and about 85oF and nighttime temperatures between 50oF and
55oF.
Water:
Succulents should be watered generously in the summer. The
potting mix should be allowed to dry between waterings, but do not
underwater. During the winter, when the plants go dormant, cut
watering back to once every other month. Overwatering and ensuing
plant rot is the single most common cause of plant failure. Be
aware, though, that an overwatered succulent might at first plump
up and look very healthy. However, the cause of death may have
already set in underground, with rot spreading upward from the root
system. A succulent should never be allowed to sit in water. The
following are signs of under- or overwatering:
Overwatering. Overwatered plants are soft and discolored. The
leaves may be yellow or white and lose their color. A plant in this
condition may be beyond repair, but you can still remove it from
its pot and inspect the roots. If they are brown and rotted, cut
away dead roots and repot into drier potting media, or take a
cutting and propagate the parent plant.
Underwatering: Succulents prefer generous water during the
growing season (spring and summer). An underwatered plant will
first stop growing, then begin to shed leaves. Alternatively, the
plant may develop brown spots on the leaves.
Potting Soils:
Succulents should be potted in a fast-draining mixture that's
designed for cacti and succulents. If you don't have access to a
specialized mix, considering modifying a normal potting mix with an
inorganic agent like perlite to increase aeration and drainage.
These plants generally have shallow roots that form a dense mat
just under the soil surface.
Fertilizer:
During the summer growing season, fertilizer as you would with
other houseplants. Stop fertilizing entirely during the
winter.

熊童子的养殖老张浅谈

熊童子的养殖老张浅谈
熊童子属于银波锦属(Cotyledon)为多年生肉质草本植物,植株呈多分枝的矮小灌木状,肥厚多肉的叶片交互对生,叶卵形,顶部的叶缘具缺刻,温差大光照充足,叶缘会发红。熊童子目前有三种,一种原始种叶子嫩绿色,一种叶子带黄锦,一种叶子带白锦。总状花序,花为红色。
光照:熊童子应该在温暖干燥和阳光充足的环境里养护,足够的阳光照射。光照充足熊掌紧凑肥厚,若光线不足会枝条徒长,熊掌瘦小,失去了观赏性。除了夏天温度超过35度、适当遮阳外,其他都可以全光照。
浇水:生长季节保持土壤湿润,间隔浇水。冬季要严格控制浇水,保持盆土干燥,能耐零度的低温。家庭如果温度可以的话,还是可以适当浇水的。夏季温度超过35℃时,整个植株生长基本停滞,这个时候应减少浇水,并加强通风,防止因盆土过度潮湿引起根部腐烂。当然并不是一点水都不浇,可以在傍晚的时候浇点水,一个月一般浇两到三次就可以了。也可以在早上或者晚上经常喷点水,避免叶面有水珠为宜。
繁殖:熊童子主要分枝繁,剪侧枝扦插,把健康的老枝条扦插在微微湿润的沙土或者蛭石中就可以。阴凉通风15到20天基本会长根,扦插应该选择春季和秋季。生根后可以大水。也有仙友说可以叶片繁殖,本人可能没有太多耐心,还没有成功过

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时间:2017-04-07  热度:
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