油松种子园球果产量近期预测方法的研究  

Study on predicition method of cone crop in seed orchard of Pinus tabulaeformis

作　　者：谢斌[1,2] 郭俊荣 杨培华[1,2] 王亚峰 史世元[1,2] 

机构地区：[1]陕西省林业科学院 [2]陕西省林木种苗站

出　　处：《西北植物学报》1999年第2期344-348,共5页Acta Botanica Boreali-Occidentalia Sinica

基　　金：陕西省科学技术委员会"八五"科技攻关项目基金

摘　　要：用可见半面树冠法和信息段法，对陇县八渡油松种子园球果近期产量进行了预测，建立了预测模型，并验证其预测结果精度高，可靠性强。An investigation at Badu seed orchard of Pinus tabulaeformis has been made to study two cone crop prediction methods:counting number of visible cones in crown from an observation point and counting number of cones in certain information section of crown.Prediction methods were developed for each method.The result verified the model could be used precisely and easily.Only number of cones in certain information section of crown is suit pine seed orchard.

关 键 词：油松 球果产量 可见半面树冠 信息段 预测预报 

分 类 号：S791.254[农业科学—林木遗传育种]