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植物的根,可说是最不受人重视的。这是因为绝大多数植物的根,都不象茎、叶、花、果这类器官可为人提供大量食用和观尝价值的植物产品。加上根在地下,其生长状态和环境因子复杂,也增加了研究的困难。所以,人们对根的实际功能了解很少,直到不久以前都还认为其功能只是吸收水分和养分,以及支持植物株体。新的试验,已揭示出许多过去意想不到的方面。本世纪初,人们在植物新生枝梢顶端组织发现生长激素,证明它对插条生根有强烈影响。二十年前证实这类物质主要来源于根。目前对激素这类物质的作用虽然还有许多方面不甚清楚,但已肯定由于这种激素的
The roots of plants can be said that the most unnoticed. This is because the vast majority of plant roots, unlike stems, leaves, flowers, fruit, such organs can provide people with a lot of food and taste the value of plant products. Coupled with roots in the ground, its growth status and environmental factors are complex, but also increase the difficulty of the study. Therefore, people have little understanding of the actual function of the root, and it was not until long ago that their function was merely to absorb water and nutrients, as well as to support plant species. The new experiment has revealed many unexpected aspects of the past. At the beginning of this century, people found the growth hormone in the tip of plant fresh shoots and proved that it had a strong influence on the rooting of cuttings. Twenty years ago confirmed that these substances mainly come from the roots. Although there are still many aspects of the current role of hormones such substances are not clear, but it has been affirmed that due to the hormone