不同倍性小型西瓜果实中番茄红素、瓜氨酸含量比较分析

采用分光光度法测定比较分析9组纯合二倍体及其人工诱变的同源四倍体小型西瓜的番茄红素、瓜氨酸含量。结果表明：与对应的二倍体小型西瓜相比，同源四倍体小型西瓜番茄红素、瓜氨酸含量均随着倍性的增加而增加，其中番茄红素增幅最高的为PI4，增幅达28.27%；瓜氨酸含量增幅最高的为PI8，增幅达19.12%。番茄红素含量依次为大红瓤＞红瓤＞粉红瓤＞黄瓤，与其瓤色有关。瓜氨酸含量依次为黄瓤＞大红瓤＝红瓤＞粉红瓤，大红瓤与红瓤之间差异不显著，其它各个材料之间均达显著水平。

Comparative Study on Lycopene and Citrulline Content in Different Ploidy Mini-watermelons Fruit

Lycopene and citrulline content of 9 materials of pure diploid mini-watermelons cultivars and homologous tetraploid mini-watermelons were determined by Spectrophotometry. The results showed that compared with the diploid, lycopene and citrulline content of homologous tetraploid mini-watermelons were increased along with the increase of ploidy. Among which, the highest lycopene content was PI4, increased 28.27%. And the highest citrulline content was PI8, increased by 19.12%. There was a correlation between lycopene content and flesh color, and bright red flesh>red flesh>pink flesh>yellow flesh. Citrulline content of mini-watermelons yellow flesh>bright red flesh and red flesh>pink flesh, between bright red flesh and red flesh was no significant difference, and among other materials had reached significant levels.