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菠萝收获有季节性,罐头加工厂需要一年四季源源供应果实,故在西马来西亚必须采用化学药物诱导菠萝植株开花的措施。这种人工催花的方法是由大菠萝农约于1954年倡导的;当时使用的化学药物是萘乙酸(NAA)。随后还普遍使用过电石发生的乙炔,因其比萘乙酸价廉而且高效。Tan1969年报道,通常大菠萝农喜用乙炔,而小菠萝农却认为萘乙酸使用起来更方便且易贮藏。Wee 等1971年报道新近
Pineapple harvest seasonally, the canning plant needs source supply of fruit throughout the year, so in western Malaysia must adopt the chemical drugs to induce pineapple plant flowering measures. This method of artificial flower promotion was advocated by the Great Pineapple Peasant in 1954; the chemical used at that time was naphthaleneacetic acid (NAA). The widespread use of acetylene after calcium carbide was also more cost-effective and more efficient than naphthalene acetate. Tan reported in 1969 that large pineapple farmers generally prefer acetylene while small pineapple farmers consider naphthalene acetic acid to be more convenient and easier to store. Wee et al reported in 1971