How long can plant seeds live?

The shortest life-span seed in the world is a kind of plant seed called shuttle worker living in the desert It can only live for a few hours, but it has strong vitality As long as you get a little water, it will take root and sprout within two or three hours, which is the adaptability to the arid environment of the desert As for the long-lived seeds, there are many Have you heard of thousand year old lotus? In 1952, Chinese scientists dug up some ancient lotus seeds in paozi village, the eastern suburb of Xinjin, Dalian City, Liaoning Province After scientific measurement, their life span is actually between 330 and 1250 years, which is the longest life-span seed in China Scientists and technologists remove 1-2 mm from both ends of the ancient lotus seed and soak it in water After 3 days at 25 ℃ constant temperature, they produce green shoots with a germination rate of 96% After careful care, the next summer also produced a light red lotus Ancient lotus seed has a hard shell Its shell is composed of hard palisade cells, and its cell wall is completely composed of cellulose to prevent water and air from seeping in or out At the same time, there is a small gas chamber in the lotus seed, which stores about 0.2 cubic millimeter of oxygen, carbon dioxide and nitrogen, which is necessary to maintain its minimum vitality Ancient lotus seeds also contain very little water Under such a dry, low temperature and airtight storage condition, they maintain extremely weak vitality, metabolism almost stops, and lead a dormant life In fact, the life span of many plant seeds is much longer than that of human beings Now, there are more than 60 kinds of plant seeds with a known life span of more than 100 years, most of which are legumes For example, the seed life of Cassia bicolor can reach 1999, and that of Mimosa globosa can reach 221 years In 1967, more than 20 seeds of Arctic hyacinth were found in lemming burrows in the central area of Macon? A, North America These seeds were deeply buried in the permafrost Their lifespan is determined to be at least 10000 years In the seeding experiment, 6 seeds sprouted and grew into plants The seeds of the Arctic hyacinth bean can be called the longevity star of the seeds Up to now, no seeds with longer life span have been found.