黄纹竹出笋及幼竹高生长规律的研究

Study on the Shooting and Height Growth Of P.vivax f.huanvenzhn J.L.Lu

对扬州大禹风景竹园的黄纹竹(Phyllostachys vivaxcv.Huanwenzhu)出笋、退笋以及幼竹高生长规律进行了研究,结果表明:黄纹竹发笋期在3月下旬—6月下旬;退笋多出现在出笋末期(5月11日—6月30日);高生长的Logistic曲线模型为:H=517.593/(1+e6.505-0.231t),Doseresp生长曲线模型:H=0.367+517.03/(1+102.820-0.100t);生长盛期时,昼夜24 h平均生长量达22.38 cm,白天生长量是夜间生长量的1.29倍。

The bamboo shoots emergence,degeneration and young bamboo shoots height growth rhythm of P.vivax f.huanvenzhn J .L.Lu were studied in Dayu Bamboo Garden,Yangzhou,Jiangsu.The results indicated that the period of bamboo shoots was from late March to late June,in which degraded shoots often occurred on 11st,May—30th,June.The logistic curve model of height growth was：H=517.593/（1＋e^6.505-0.231t）.The Doseresp growth curve mdel was： H=0.367＋517.03/（1＋10^2.820-0.100t）;the height of growing during a day and night was about 22.38 cm,and the growing height during a day was 1.29 times of that during a night.