胡麻种子形态结构与萌发特性的研究

Study on Configuration Fabric and Germination Conditions of Flax Seed

为提高胡麻的田间出、保苗率,明确最佳的种子萌发条件,对胡麻种子的形态结构、吸水等萌芽特性进行了研究。结果表明:胡麻种子的吸水分为快速吸水(7 h,吸水量占最大吸水量的93.2%)、缓慢吸水(7～20 h)和饱和(20 h以后)3个阶段;胡麻种子发芽的适宜温度为15～30℃,最适温度为20℃,且光照有利于种子发芽;20℃和25℃条件下,利于胡麻胚根的生长,而35℃条件下,利于胡麻子叶生长以及物质积累;在纸上胡麻种子的发芽明显优于试验条件下的其他试验床;以活性炭为材料,丸化胡麻种子,有利于种子发芽和幼苗生长,叶色值(SPAD)也有所增加,但发芽指数呈下降趋势。

In order to study the water absorption characteristics and germination conditions of flax seed of the Zhang-ya 2, the test is single factor test, morphology, water were studied. The results showed that：The water absorption absorption characteristics, and bud characteristics of the flax seed is consisted of rapid absorption （ 7 h, absorbent accounted for 93.2% of the maximum water absorption）, slow water absorption （7 - 20 h） and saturation （20 h） three stages. Flax seed germinated at 15 -30 ℃, the optimum temperature of gemination was 20 ℃, and light was good for seed germination. 20℃ and 25 ℃ conducive to flax radicle growth, and 35℃ conducive to flax seed leaf growth and material accumulation. Seed germination was significantly better than the other test bed. pelleted material of activated carbon and bentonite was conducive to the germination of flax seeds. Pelleting material was good for flax seed germination, especially activated carbon, but unfavorable to the improvement of seed germination index, and pelleted material will help flax seed growth, and leaf color value （SPAD） increase.