物理生长 meaning in English

physical growth

Field germination , nodulation status and physical growth parameters of seedlings ( shoot and root length , vigor index , collar diameter , leaf number , fresh and dry weight of shoot and root and total dry biomass increment ) were recorded after three and six months of seed sowing
播种的3和6月后，记录幼苗大田发芽、分枝状况和其他物理生长参数（枝条或根长、活力指数、茎直径、叶片数、分枝或根鲜重和干重、总的生物量干重增长）等。