Rule of Shooting and Height growth of Dendrocalamus latiflorus

The rule of shooting and height-growth of Dendrocalamus latiflorus was studied in Huaan,Fujian Province during the period from May through October,1995. The results are showed as follows:(1)The process of shooting and height-growth of D.latiflorus can be quantitatively divided into three stages,i.e.initial,abundant and ending stage. The number of shoots at the abundant stage of shooting accounts for 57.48% of the total,and a single shoot at this stage weighs 1.26 kg averagely.The height-growth increment at the abundant stage of height-growth accounts for 81.12% of the total,and the height-growth increment at this stage during one day is 20.44 cm averagely.(2) The process of height-growth of D.latiflorus can be simulated effectively with the models of Logistic and Richards,and the correlation coefficient is high.(3) The leading meteorological factors affecting the height-growth of D.latiflorus are sunshine time,the previous day’s mean temperate and precipitation,and the lowest temperate of current day.Among them,the last one is negatively correlated with the height-growth,the rest of them are positively correlated with it.(4)There are 2 growth peaks within 24 hours in the height-growth of D. latiflorus,i.e.during 6:00～8:00 and 18:00～22:00. The low point is during 14:00～16:00. It grows evenly at night.