紫光

lán guāng hé lán zǐ guāng de zhào shè néng shǐ chūn xiǎo mài zhí zhū qū yú ǎi zhuàng

蓝光和蓝紫光的照射能使春小麦植株趋于矮壮。

Blue and violet light can make spring wheat plants shorter and stronger.