苦瓜种子皮厚壳硬，在常规催芽下发芽慢且不整齐。温水浸种、高湿环境中催芽，出芽快且整齐度高，方法如下：把筛选晾晒的种子放在60℃左右热水中浸15分钟，并不停搅拌，水温降到30℃时再浸泡12－15小时，用手搓洗种子后捞出稍晾，与热炉灰（过筛炉灰与开水比例为1：0．7，手捏 Bitter melon seed shell thick shell hard, under normal germination slow and irregular germination. Warm water soaking, germination in high humidity environment, rapid budding and high uniformity, the method is as follows: the screening of dried seeds in about 60 ℃ hot water immersion for 15 minutes and kept stirring, the water temperature dropped to 30 ℃ then soaked 12 -15 hours, rub the seeds scrub after hand slightly dry, and hot ash (smelting furnace ash and water ratio of 1: 0.7, pinch