金明竹在泰州地区发笋退笋规律研究  

The Shooting and Decay of Phyllostachys bambusoides f. castillonis in Taizhou Area

作　　者：曲良谱[1] QU Liang-pu(Jiangsu Agri-animal Husbandry Vocational College,Taizhou 225300 ,Jiangsu,China)

机构地区：[1]江苏农牧科技职业学院,江苏泰州225300

出　　处：《竹子学报》2017年第4期37-40,共4页Journal of Bamboo Research

基　　金：江苏农牧科技职业学院一般课题(编号:NSFYB1411)

摘　　要：采用定点观测法,对金明竹在泰州市海陵区江苏农牧科技职业学院校内实训基地进行发笋和成竹规律进行了实测研究,结果显示:金明竹在泰州的出笋期开始于5月15日,结束于6月11日,出笋盛期约在5月23日~6月1日,盛期出笋量占笋期总出笋量的68.03%,出笋总时间约28 d。笋体高生长遵循慢—快—慢规律,早期出的笋所需时间较长,其高生长时间持续时间较长,晚期出的笋所需时间相对较短。金明竹退笋与出笋时间及笋体高度有关,随出笋时间推迟退笋率呈增大趋势,平均退笋率为45.15%;其中退笋高度主要集中在40 cm以下,以30 cm以下占比最多,达到77.61%。The shooting and the height growth rhythm of Phyllostachys bambusoides var.castillonis were observed in the training base of Jiangsu Agri-animal Husbandry Vocational College,Hailing District, Taizhou City,Jiangsu Province. The results indicated that the bamboo shooting began on May 15 and ended on June 11,lasting for 28 d. The vigorous shooting phase was from May 23 to June 4,in which the shooting number accounted for 68. 03%of the total. The height growth of young bamboo shoots showed a tendency of slow-fast-slow,the early sprouted bamboo shoots take a longer time to grow up to the top of the canopy than the late ones. The decay of shoots were correlated to their height and shooting time,the decayed rates of the early sprouted bamboo shoots were lower than the late ones,and the average decaying rate was 45. 15%. The heights of the decayed shoots were mainly lower than 40 cm,of which,those below 30 cm accounted for 77. 61%.

关 键 词：金明竹 出笋 退笋 高生长规律 

分 类 号：S795[农业科学—林木遗传育种]