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高中生物课本第２０２页人工诱导多倍体——无籽西瓜的培育的教学过程中，笔者发现学生经常会问下列问题： １．由二倍体西瓜到四倍体西瓜过程中，秋水仙素起什么作用？其如何处理。 ２．三倍体西瓜为什么无籽？ ３．无籽蕃茄是人工诱导多倍体得来的吗？ ４．由二倍体西瓜到三
In the teaching process of artificially inducing polyploid, seedless watermelon, the author finds that students frequently ask the following questions: What is the effect of colchicine from diploid watermelon to tetraploid watermelon? How it is handled. 2. Why is the triploid watermelon seedless? 3. Are seedless tomatoes derived from artificial induction of polyploidy? 4. From diploid watermelon to three