『LIMIA(4)』According to the site,
・ Cut flowers last 1 to 10 days in spring and autumn, 4 to 5 days in summer, and 10 to 2 weeks in winter.
・ Cut flowers are more delicate than wild flowers, so you need to make sure that they can absorb water well.
・ When cutting cut flower stems, it is important to cut them in water. There are two reasons. The first is to cut underwater to prevent air from entering through the cut and to smooth the movement of water in the conduit. If air enters the conduit, it can form bubbles that impede the movement of water. The second is to prevent the cut end from drying out. When the cut is dry, the flower's ability to absorb water weakens.
-The stem of a plant has a tissue called a conduit, which plays a role of absorbing water. If you cut the stem with blunt scissors, this vessel will collapse and you will not be able to absorb water well.
・ To make flowers last longer, it is important to cut the stems of cut flowers in water every day. Stems that are submerged in water will become damaged over time. Drain the water daily so that the flowers can absorb the water.。
After doing some research, the『"Experiment of Hyogo Prefectural Agricultural Research Center(5)"』was helpful.
In this paper, we tested the effects of concentration and treatment time of a substance called silver thiosulfate on carnation flower retention.In this experiments,
1. By giving silver thiosulfate to the flowers, the flower life was extended more than twice as long as when nothing was done.
2. It was written that "the flower life was extended up to a certain amount, but when the amount exceeded a certain amount, a disorder appeared." In this research, the concentration of the substance to be given was also tested, so I think that it can be tested there as well.
We conducted a survey on sites such as "Mynavi Agriculture(6)"in order to bring the "flower potion" and "flower potion" made from the research results of the previous year closer to completion.
I would like to summarize what I learned there.
First, I will summarize the points about the installation environment.
・ First, cut the stem diagonally with sharp scissors.
・ Keep the liquid in the vase up to a few centimeters below the flower.
・ Do not let the wind from the air conditioner hit directly.
Keep this in mind and decorate your flowers beautifully.
・ If there are flowers or leaves in the vase, remove them.
・ Replace the liquid in the vase as often as possible.
・ If the bottom part of the stem is discolored, cut it with sharp scissors.
By performing these points, the flowers will have a longer life, so if you can, try it. In the previous year, we experimented with the sugar used in flower potions, so this year we decided to investigate sterilization.
After doing some research, 『"Experiment of Shindo et al. (7) of Gifu Prefectural Ena High School"』was helpful. In that experiment, we focused on (1) the cut end of the flower stem, (2) the solution to put the flower, (3) the concentration of the solution, and (4) the ambient temperature. Regarding the content of (1), we conducted experiments from the following eight types of perswas helpful. pectives. The eight types were parallel, inverted M, pointed (weak), pointed (strong), diagonally cut (weak), diagonally cut (strong), and peeled. As a result, "the surface area and shape of the cut did not make a big difference in absorption rate or appearance." Regarding the content of (2), we conducted experiments with the following seven types of solutions. The seven types were tap water, rice juice, sugar water, saline solution, detergent water, green tea, and liquid fertilizer. As a result, he said, "It was sugar water that had the best flower condition. Regarding the content of ③, we conducted experiments with the following six types of sugar water concentrations. The six types The concentrations were 1%, 3%, 5%, 10%, 15% and 30%. As a result, "the 15% concentration was the best for the flower condition." Regarding the content of (4), we conducted experiments at the following four types of temperatures. The four types were 5 ° C, 10 ° C, 20 ° C, and normal temperature. As a result, "I found that the lower the temperature, the better the flowers are." In this study, sugar water was the best, and in our study we concluded that granulated sugar was the best sugar water. However, this study also touches on concentrations, and I think there is room for research on these as well.
From the moment the flower is cut, the roots cannot be replenished with nutrients. It's the same as we can't eat, and the flowers gradually lose their energy. During the summer months, the water in the vase heats up and becomes lukewarm. Therefore, it becomes easier for bacteria to grow. In addition, photosynthetic sugar supplementation is not sufficient with indoor light. In addition, the lifespan of cut flowers is greatly affected by "clogging" of the conducting tissue due to the growth of mold and bacteria.
"In addition, according to the quotation (1) for other flowers, for example, gerbera, which is prone to soil adhesion, has a fragile stem and is contaminated with bacteria. Yellowing of leaves may occur in monocotyledonous cut flowers such as alstroemeria and chrysanthemum. Carnations and sweet pea generate a large amount of aging hormone (aging phenomenon caused by ethylene gas). (8) ”
Therefore, most life-prolonging products have antibacterial agents added. There are many distinctive products that combine sugar and add other ingredients. As a remedy for this, cut flowers and cut leaves are given about 3 to 5% glucose and sucrose, and life-prolonging effects have been expected.
"Also, soak vinegar or alcohol in the cut end of the flower for 30 seconds to 1 minute and then immediately soak it in water, or add 5 to 6 drops of chlorine bleach to 1 liter of water to suppress the growth of bacteria. Another option is to add 5-10 grams of sugar to 1 liter of water with bleach. (9) ”
There are other ways to prolong the life of the landing effect of surfactants. In the first place, flowers use a lot of energy for flowering. In particular, it is effective for flowers that bloom one after another, such as snapdragon. Therefore, this sugar supplement is very effective for making flowers bloom.