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兰花难种,这是我们经常听到的反映。确实兰花具有特殊的生活习性,兰科很多属以及鹿蹄草科,龙胆科一些属种的植物个体,在其生长过程中,都具有与真菌营养性共生的特点。在兰花栽培实践中,能创造较好的兰花与真菌共生的适宜条件,兰花就会生长得花繁叶茂。兰花种子十分细小,一个蒴果常有几万至几十万粒种子,兰花种子内几乎没有贮藏营养物质,没有胚乳和子叶,在天然条件下,只有少量种子,遇到菌根菌侵入种子内,把养分供给胚
Difficult species of orchids, this is what we often hear the reflection. Indeed orchids have a special habit of life, many of the genus Orchidaceae, as well as the genus Deerfoot, Gentianaceae some species of plant individuals, in its growth process, have the characteristics of the nutritional symbiotic fungi. In orchid cultivation practice, can create better conditions for the symbiosis of orchids and fungi, orchids will grow luxuriant. Orchid seeds are very small, a capsule often tens of thousands to hundreds of thousands of seeds, orchid seeds almost no storage of nutrients, there is no endosperm and cotyledons, under natural conditions, only a small amount of seeds, encountered mycorrhizal bacteria invade the seeds, Feed nutrients to embryos