The mechanism of promoting flower, controlling water exposure and potassium dihydrogen phosphate and multiple seedlings in orchids

Water control exposure to potassium dihydrogen phosphate seedlings, I have encountered this situation before. Last year, when Jianlan was in bloom, water control, sun exposure and application of potassium dihydrogen phosphate quickly produced six buds, but the result was not what I expected. Only two of the six buds were flower buds and the other four were leaf buds.

At that time, I posted to get the answer, and the moderators and Lanyou gave me a warm answer. However, I have been thinking, why are the leaf buds in the majority? On October 2, 2004, I divided the Jianlan and Jiyuan of the accompany garden into pots. After re-potting the orchid, I carried out a similar experiment. Soon, it surprised me again-there were seven buds on October 27. So I was fascinated by this pot of Jianlan, and a few days later I found another bud. However, if it continues to grow, it will be a single result again-eight are all leaf buds.

I still didn't understand at this time, but soon I didn't care too much. Because I began to buy Song Mei, I was more interested in Chunlan. In particular, the big wealth of the three seedlings bought at the end of September will realize the first and third of the new seedlings by November 12. A total of three. Until March this year, I mailed a book, "flowering Control of ornamental plants"-my dream is to let Chunlan blossom in my city. First of all, I read through the catalogue, glanced through the theoretical part, and went directly to find a guiding method, but I was greatly disappointed. Although most of the book introduces the flowering control of various ornamental plants, it does not talk about the flowering control of orchids alone. I can't help it, so I have to start with the theory. Florescence control is divided into two parts:

The first is the basic theory of florescence control, in which there is a carbon-nitrogen ratio theory, which says that the factor that promotes flowering is not the absolute content of carbon and nitrogen, but the proportion of its total content. When the ratio of carbon to nitrogen is high, the plant can bloom smoothly. The other is about flower bud differentiation. It is mentioned that water supply can obviously affect the differentiation of flower organs, and most ornamental plants can differentiate flower buds more rapidly only after a period of water deficit. Reproduce as soon as possible. It is also mentioned that when too much phosphate fertilizer is applied, it can promote flower bud differentiation in many plants, and potassium plays a very important role in carbohydrate formation. When applied more, the ratio of carbon to nitrogen can be increased. Nitrogen fertilizer significantly promoted vegetative growth.

Speaking of which, it still seems that it has nothing to do with the emergence of seedlings. But I'm about to have my own idea.

I think: when orchids are not in bloom, if they are forcibly treated by means of promoting flowers, the results will also surprise us! Get the leaf bud!

I wonder why this can be explained in this way: orchids are different from other plants in that orchids can be passed on in two ways, one of which is flowering. One is to germinate pseudobulbs and carry on the family line.

We should not regard the germination of new bulbs of orchids as a typical vegetative growth, but should also be regarded as a kind of reproductive growth. Because this way has completely formed a new life form. Unlike ordinary plants, they grow one more fork, but not another set of roots at the same time.

This may also explain why people twist between Reed heads can also force new buds-orchids are threatened with life and immediately react to stress, but they sprout leaves without sprouting flowers.

Potassium is plentiful and sunny, which is bound to accumulate a lot of carbohydrates. At this time, it is under the condition of severe water shortage. The result is to enter another kind of reproductive growth-emergence.

I would like to add that the effect of lack of water without high temperature is the best. Because if it is high temperature and lack of water, the orchid will go into dormancy instead of sprouting.

My great wealth is this kind of warm exposure instead of high temperature exposure. The temperature is 25 degrees, the sun is sufficient and lack of water, but there is no special potassium supplement (bought back is the new seedling Reed head is already very strong, and I use the self-made MS medium, there is no lack of potassium. In addition, I think that when this method is used to provide high potassium conditions, potassium dihydrogen phosphate should not be used, but potassium nitrate should be used to provide potassium and nitrogen. Without providing phosphorus. Excessive spraying of potassium dihydrogen phosphate, although there are many seedlings, but the old seedlings aging quickly. Because excessive phosphorus plants enhance respiration and consume more carbohydrates, which hinders the synthesis and accumulation of carbohydrates. This is the opposite of the effect of potassium-which is why the mother seedlings age rapidly. Going back to the first two examples I mentioned, the first one occurred in August, when it was in the main flowering period of Jianlan. According to this treatment, it is impossible to have flower buds, but also get leaf buds at the same time.

This in October is even more telling. When you turn the pot and slow down the seedlings in October, when you deal with it in this way, the flowering period of the orchid has already passed. The result of this treatment is a large number of buds-leaf buds. Coincidentally, an orchid friend used this method to get a large number of leaf buds in the non-flowering period of Cymbidium.