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植物生长调节剂,是一些生理效应与天然植物激素相似的人工合成有机物,可有效地控制植物生长发育。近几年,笔者在春兰栽培中使用了植物生长调节剂,效果很不错。一、生长素对兰花生长的影响天然的植物生长索为β-吲哚乙酸等,在植物的根、茎等尖端产生。能促进某些RNA的合成,从而调节蛋白质的合成,进而调整植物的生长及分化。人工合成的生长素有萘乙酸和2·4—D等。 1.萘乙酸促进春兰分蘖和根的生长当温度为18～22℃时,春兰假鳞茎上的隐芽萌动。此时,取一定量的萘乙酸,配制成100ppm(注1)水溶液,用细嘴喷壶浇灌兰花,每周一次(视盆土干湿情况而定)。4～5周后与对比春兰相比,分蘖(新苗)粗壮,生长较快,而且长出了新根。而对照春兰分蘖生长较慢,且没有新根长出(一般情况下需分蘖叶展开后,
Plant growth regulators, which are synthetic organisms that have physiological effects similar to those of natural plant hormones, can effectively control plant growth and development. In recent years, I use the plant growth regulator in Chunlan cultivation, the effect is very good. First, the growth hormone on the growth of orchids Natural plant growth hormone cable for β-indole acetic acid, etc., in the plant’s roots, stems and other sophisticated produce. Can promote the synthesis of certain RNA, thereby regulating protein synthesis, thereby regulating plant growth and differentiation. Synthetic auxins are naphthalene acetic acid and 2.4-D and so on. 1. NAA promotes the growth of Chunlan tillers and roots When the temperature is 18 ~ 22 ℃, the pseudo-buds on Chunlan pseudobubbles germinate. At this point, take a certain amount of naphthalene acetic acid, formulated as 100ppm (Note 1) aqueous solution, watering the orchid with a small nozzle, once a week (depending on the wet and dry conditions of the basin). After 4 to 5 weeks compared with the contrast Chunlan, tiller (new seedlings) stout, grow faster, and grow new roots. The control Chunlan tiller growth slower, and no new roots grow (under normal circumstances need to be divided after tillering leaves,