Factors affecting the opening of orchids

The so-called "opening" refers to the quality of the buds of the same variety after blooming. Good opening means that the flower color, petal shape, hold, tongue, shoulder and scape of the flower approach the best evaluation standard of each part of the orchid to the maximum extent, and obtain good sensory effect. Otherwise, it means poor opening.

There are many factors affecting the quality of orchids, such as plant material, fertilizer, light, moisture, cultivation site, grass strength and bud care, etc. In order to obtain good opening, it is necessary to study these factors. There are some references in the works of masters of orchid art in past dynasties, such as "Little History of Orchid Hui" about Huihua Wenyuan Mei: Three petals wide and thick, separated back, hard pocket holding heart, dragon swallow tongue, green shoulder flat, dry long, open basin mud should be dry, out of the long door and can be so flat. "Orchid Hui Tongxin Lu" in the discussion of the birth of plum cloud: Only the spring through the stamen is not divided into petals and tongues, often do not open, raise should be clear and strong, if big strong then three petals and one nose already. Because each variety has its own characteristics of opening, and the sensitivity to various interference factors is different, generally called "good bones" varieties of its opening products are more stable, such as Chunlan Wang Zi, Long Zi, Gai He, Hui Hua Lao Ran Zi, Jin Tian Su, etc., but most varieties of opening products are very large, so according to the author's many years of observation, talk about the external factors on orchid opening products.

1. influence of plant strength

Generally speaking, orchid plants strong, even the number of plants on the more able to reflect the characteristics of the variety, flowers can be fully supplemented with nutrients, so that the outer three petals wide, this is especially true for the lily. For example, last year, a six-pile extra-large grass Jiangnan new best, the width of the accessory petal head is up to 1.4cm, while the general plant is about 1cm. However, such as Xishen, Yemei, Wanzi, etc., the flowering of Zhongcao is instead three-petal round, of course, this is related to the water supply at flowering stage (below)

2. Effect of water on florescence

The orchid in flowering period depends on absorbing water to dilute the nutrients in the body to supply flowers for growth. If the plant has more nutrients accumulated and sufficient water supply, the three-petal head will enlarge at the same time, the petal foot will be extended, and the accessory petal will droop and drop the shoulder, which is unfavorable for the opening of plum, lotus and fairy, especially the lotus petal will have the defects of large shoulder drop and open skylight. Therefore, a little dry in the basin is good for opening products, lotus petals and petals are especially thin, but too dry is unfavorable for flower scape height, so it is difficult to be in a "degree" word, but for multi-petal flowers, sufficient water for wave petals will be able to fully display its characteristics.

3. Effect of fertilizer

Excessive fertilizer makes the plant body winter nutrients are quite rich, although the next year is beneficial to the grass, but it is difficult to open short and wide three petals, so the humus soil cultivation of plum, lotus, fairy and other "rules", flowers should generally stop fertilization after the bud, because humus still contains considerable fertilizer, fertilizer supply within a few months before flowering is inclined downward trend, just to meet the needs of late growth of orchid. Granular soil fertility is poor, so after bud still need fertilizer to meet the needs of plant growth, but the concentration and frequency should be gradually reduced, the problem is that this "degree" is also difficult to grasp, return to the sale of seedlings generally poor is also an example. It is beneficial to have enough fertilizer for multipetalous flowers.

4. Effects of light

The flower color plays an important role in the blooming. Light control is the main factor to determine the flower color, especially for colored flowers. The flower buds of purple, red and vermilion gold flowers fully accept light to deepen the flower color and become more beautiful. However, the flower petals with red ribs and dark green flowers can make the flower color clean and beautiful, and the red pigment decreases. Generally, the flower buds of green flowers are shaded and the flower color tends to be tender green. The vast majority of white flowers must be completely shaded in order to open white flowers, such as Xiaoxue does not shade its petals are aqua green, and veins are green.

5. the influence of temperature

The temperature in late winter and early spring has a great influence on the development and flowering of flower buds. If the temperature is high around the Spring Festival, the flower buds of some varieties will open ahead of time, commonly known as "opening in spring". This kind of flower is generally not good, because the temperature is unstable at this time, and the nutrient supply is not continuous. If artificial continuous warming and humidification (generally at 18-25℃) is adopted, the buds will obtain sufficient and continuous nutrition supply, which is beneficial to the height of the scape and the length and width of the petals. For example, in order to make the flowers participating in the 10th National Lanbo Fair in Hangzhou open in time, we rent a hotel room one week in advance to warm up, the effect is very good, the flower is tall and tender, two pots of He Shen plum petals are like spoons, the area of three petals is half larger than usual, and there is no red and green on the back, and its opening is unexpected. However, some easy to fall shoulders, anti-warped, open hold varieties should see good harvest, flowers can be moved out of the greenhouse at the beginning.

In short, these external factors and plant conditions on orchid open comprehensive cross, in order to obtain better open products, according to different varieties of characteristics, take different measures, use appropriate changes in these factors to achieve good open products.