Over bearing trees of last year showed the smaller number of the rosulate leaves and lower Percentage of fruit set than that of lower yielding trees.
上年的高产树，翌年花序初生叶叶片数量少，叶面积小，座果率低。
It is necessary to build bases of oleoresin production, select high gum-yielding trees for planting, spread advanced tapping technology and introduce intensive management.
要改变这一状况，必须建立松脂生产基地，选育高产脂力良种，推广先进采脂技术，实行集约化经营。
Trees and shrubs yielding a fragrant oil.
产出芳香的油脂的乔木和灌木科。
Heart in Fanghua, even if this meant living in the north wind whistled, trees are dying of winter frost cold winter, the heart is also filled with lively, vibrant, yielding in March;
心驻芳华，纵是身处北风呼啸、万木凋零的数九寒冬，心中洋溢的也是生机盎然、朝气蓬勃的阳春三月；
Heart in Fanghua, even if this meant living in the north wind whistled, trees are dying of winter frost cold winter, the heart is also filled with lively, vibrant, yielding in March;
心驻芳华，纵是身处北风呼啸、万木凋零的数九寒冬，心中洋溢的也是生机盎然、朝气蓬勃的阳春三月；
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