Will bamboo blossom after all?

Yes, bamboo is evergreen, tall and beautiful, colorful and changeable. Bamboo has beautiful and slender branches and leaves; Qin, silk, bamboo, and gold branches are inlaid with green lines; Torreya grandis, mottled branches, graceful; Bitter bamboo with mottled leaves with mottled patterns; Purple bamboo, yellow bamboo and red bamboo have purple, yellow and purple branches respectively; Flower-shaped bamboo with yellow lines on green bamboo poles; Buddha's belly bamboo, with short and thick branches, protrudes outward, like a big belly of Lohan. In addition, there are Long Lin Bamboo, Jasper Bamboo, Chicken Claw Bamboo and so on, which are also rare varieties of bamboo. Bamboo absorbs a lot of water. Planting some bamboo in front of and behind the house can beautify the environment and make it cool in summer. The ancients said, "Eating without meat is better than living without bamboo." It can be seen that bamboo is closely related to people's lives. Although bamboo is a common plant, not many people see it blossom. So, does bamboo blossom? Bloom. Because bamboo is a flowering plant, it naturally blooms and bears fruit (Figure 1 1). Probably because most kinds of bamboo don't blossom and bear fruit every year like flowering plants, some people mistakenly think that bamboo doesn't bloom. Due to different bamboo species, the length of flowering cycle is also different, which is also influenced by heredity. Some bamboos take more than ten years or decades to blossom, such as Dendrocalamus latiflorus and Bambusa bambusa, which take about 30 years to blossom, Dendrocalamus affinis and Japanese bamboos take 32 years to blossom, and some bamboo species take more than 80 years to blossom. Some even take a hundred years to blossom, such as Zhu Gui, which takes 120 years to blossom. Of course, there are a few exceptions, such as Phyllostachys pubescens, which bloom once a year or so; On the other hand, Tang Zhu and Xiaoshunzhu bloom irregularly. It is precisely because bamboo is rare to bloom, after flowering, the green leaves wither, branches wither and die in batches, so some superstitious people mistakenly think that bamboo flowering is an "ominous sign", which makes people feel mysterious and has various questions about this natural phenomenon. Why do bamboo die in pieces after flowering? This is a question that people have been puzzled for a long time, and scientists also hold different views on it. Some scientists believe that bamboo will inevitably get old when it reaches a certain age. In order to reproduce, it will blossom and bear fruit before the end of life. Their explanations are as follows: roots, stems and leaves of plants are called vegetative organs, and their growth is called vegetative growth; Flowers, fruits and seeds of plants are called reproductive organs, and their growth is called reproductive growth. The flowering habits of plants can be divided into two categories: one is once flowering plants, such as rice, wheat, bamboo and so on; The other is plants that bloom many times, such as apples and pears. Once-flowering plants only bloom once in their lives, which is characterized by vegetative growth in the early stage of growth. When vegetative growth reaches a certain stage, reproductive growth gradually turns to superiority, and finally blooms and bears fruit. Because flowering and fruiting consume a lot of organic nutrients, which come from roots, stems and leaves, after flowering and fruiting, most of the nutrients stored in the vegetative organs are consumed, and they can no longer live and die gradually. This is true of plants that once bloomed, such as wheat and rice, and bamboo is no exception. When bamboo blooms, the nutrients stored in bamboo whips and bamboo poles are exhausted, and most species, such as Phyllostachys pubescens and pear bamboo, are used up. After flowering, all the above-ground and underground parts died. However, a few bamboo species, such as Phyllostachys pubescens, Phyllostachys cinnamomi, Phyllostachys pubescens, etc., die after flowering, but the buds in the underground part can still rejuvenate and renew; There are also some bamboo species, such as water bamboo, flower bamboo and so on. After flowering, the leaves of plants remain green and the underground parts will not die. However, flowers should be picked as soon as possible to reduce nutrient consumption and ensure the normal growth of bamboo forests. In fact, bamboo flowering has long been recorded in ancient books in China. Shan Hai Jing wrote: "Bamboo changes its roots every sixty years, but the roots will bloom, the flowers will bear fruit, the fruit will die and the fruit will revive." There is a similar record in the Book of Jin: "In the second year of Emperor Jinhui's Yuankang, grass and bamboo all bear seeds such as wheat, and in the spring of the next year, bamboo in Brazil blooms." In modern times, there are also many records about bamboo flowering at home and abroad. Interestingly, sometimes bamboo blooms across mountains, provinces and continents. For example, in 1907, bamboos bloomed, while in the Royal Botanical Garden in Wan Li, bamboos bloomed at the same time. For example, the bamboo forests in Jiaxing, Zhejiang, China bloomed at 1933, and all the bamboo forests around Matou Town, Lu 'an, Anhui Province bloomed at the same time. Large areas of bamboo forests will cause great losses. 1984 In the summer, Fargesia acuminata bloomed in Wolong Nature Reserve, Sichuan, China, and a large bamboo forest died after flowering, resulting in the death of the rare animal giant panda due to lack of food. Bamboo flowering is a physiological phenomenon, which generally occurs in bamboo gardens with long-term drought, soil hardening, overgrown weeds and old whips. This is because bamboo is seriously short of water and nutrition, photosynthesis is weakened, nitrogen metabolism is reduced, and sugar concentration is correspondingly increased, resulting in a high sugar-nitrogen ratio, which creates conditions for the formation and flowering of flower buds. It can be seen that bamboo flowering is caused by poor growth environment. Therefore, according to the characteristics of bamboo species, corresponding management measures can be taken to control bamboo flowering. For example, measures such as loosening soil, fertilizing, covering soil, watering, digging bamboo piles, and controlling pests and diseases can be taken to create a suitable growth environment for bamboo, so as to avoid flowering.

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