狭义遗传率

生育期、播种－开花的狭义遗传率均较高，分别为66.1%和49.1%，且与环境互作效应较小，而果枝始节和播种－现蕾的遗传率最低，分别为19.8%和18.8%，且与环境互作达到极显著水平，现蕾－开花、开花－吐絮和株高这3个性状的遗传率及其与环境

chronic narrow angle glaucoma

narrow spectrum antibiotic

narrow heribatility

narrow

narrow beam

Narrow-band Analog Mobile Phone Service

narrow v-belt

a narrow margin of profit