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一、樟子松根据我区几年来采集樟子松球果的经验,一般是从9月下旬到11月末和翌年从3月初旬到4月末为最适宜的采种时期。种子成熟的特征是:球果从绿色到褐绿色,最后呈现暗紫绿色(这时球果因失水分而抽折)。采集方法,在我区大体分为两种,均属立木采集法。(1)树下采集法:即站立在地面上,使用采种钩或采种抓,把树上的球果钩落到地面上,然后拾起装在盛种筐或麻袋里。这种方法简单易行,但效率不够高。 (2)上树采集法:我区几年来采集樟子松种子多半是用这种方法,但事前必须做好准备工作。即采种人员到
First, Pinus sylvestris according to my area of collection years Pinus sylvestris experience, usually from late September to late November and the following year from early March to the end of April for the most appropriate period of seed. Seed maturity is characterized by: cones from green to brown green, finally showing dark purple green (when the lobes due to moisture loss and pumping). Collection methods, generally divided into two areas in my area, are legislation wood collection method. (1) Under the tree collection method: that is standing on the ground, the use of planting hooks or seed grasping, the tree hooks dropped to the ground, and then picked up in the basket or sacks. This method is simple, but not efficient enough. (2) on the tree acquisition method: My area collected over the years most of the seeds of Scotch Pine is to use this method, but must be prepared in advance. That is, to collect personnel to