二倍体气孔密度大于三倍体，普通型大于短枝型。
短枝矮化基因或灌丛状基因能有利于品种高度密植的设计吗？
Can the brachytic dwarf gene or the bushy genes be used to advantage in cultivars designed for high density plantings?
易变的叶，那些在通常互生的第二年分枝上，那些在短枝紧靠和通常簇生上；
Leaves variable, those on previous year's branches usually alternate, those on short branches approximate and often fascicled ;
把短枝和长枝交叉叠放，两端交叉处绑扎在一起，做成一个金字塔形的笼子。把笼子平衡罩在诱饵上面。
Create a pyramid of sticks by placing progressively shorter sticks across longer sticks and lashing them together at the ends. Balance the cage over the bait.
干旱条件下，超红短枝的光合速率、蒸腾速率、气孔导度、对水分的利用效率和羧化效率一直高于对照。
Under drought, photosynthetic rate, transpiration rate, stomata conduct, water use efficiency and carboxylic efficiency of the 'Super red Spur' was higher than control's.
我们认为成花短枝及其叶片中这几种氨基酸和木质部液中氨基酸含量的变化与梅花花芽生理分化的关系值得进一步探讨。
The relationships between the amino acids in spurs or leaves with special content variation pattern and the physiological differentiation of flower buds remain to be investigated.
结果如下：1芽按活动时间分为春芽和夏芽；两类芽均可形成长枝（攀援枝）或短枝，但在活动持续时间和抽生攀援的长度方面存在明显差异；
The results are as follows:(1)Both spring bud and summer bud may form the climbing or short branch, but there are great differences in the activity duration of bud and the branch length formed.
这是一枝长的，而这是一枝短的。
结果表明，梨属矮化砧木做中间砧，多数组合表现出树体干径细，高度低，发育枝短，但冠径较大。
The results showed that with pear genus dwarf stocks, the most combinations' trunk diameter is thinner, tree height is lower, growth shoots length is shorter, but crown diameter is bigger.
幼枝密被灰白色短柔毛和伸展的长刚毛。
Young branch is mixed closely by hoar short fluff the long bristle of extend.
幼枝密被灰白色短柔毛和伸展的长刚毛。
Young branch is mixed closely by hoar short fluff the long bristle of extend.
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