植物幼体有胚芽和胚根。

The baby plant has a baby shoot and a baby root.

水分胁迫明显抑制了胚芽鞘和主胚根的生长。

Water stress obviously restrain growth of coleoptile and main radical.

初步认为主胚根长度和根数与胚芽鞘长度一样也可以作为抗旱鉴定指标来利用。

Also the root length and number were thought to be able to act as the standard of the drought resistance.

以玉米胚根为试材，初步研究了光、GA 3、蔗糖对根中花色素苷积累的影响。

Effects of light, GA3 and sucrose on anthocyanin accumulation in maize roots were investigated.

室内和田间试验表明：麦秸的水浸提物对玉米的胚芽和胚根的生长有显著影响作用。

Trials were conducted in laboratory and field in Beijing region indicated allelopathy of wheat straw on maize.