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首页> 外文期刊>Acta Horticulturae >Modelling growth of the primary shoot of rose.
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Modelling growth of the primary shoot of rose.

机译：模拟玫瑰初生苗的生长。

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摘要

In propagation of rose by leafy stem cuttings, the area of the original leaf is a visible quality determinant of cuttings because it influences rooting (number and dry weight of roots) and length and dry weight of the primary shoot. In this paper a simple photosynthesis-based model is presented to predict elongation of, the primary shoot of rose planting material derived from single node leafy stem cuttings. The model describes shoot elongation in response to changes in the original leaf area of cuttings during the first 11 weeks following severance. The model reasonably predicted primary shoot elongation but underestimated shoot length when leaf area was reduced by about 70% or when the complete leaf was removed at 7, 14 or 21 days after severance. The model accurately predicted carbohydrate accumulation during the first 3 weeks after severance. Simulations support the hypothesis that post-severance photosynthesis rather than the initial carbohydrate reserve level is the major determinant of primary shoot growth of single node leafy stem cuttings of rose.
机译：在通过多叶茎插枝繁殖玫瑰的过程中，原始叶的面积是插条的可见品质决定因素，因为它会影响生根（根的数量和干重）以及初生芽的长度和干重。在本文中，提出了一个基于光合作用的简单模型来预测由单节叶状枝条衍生的玫瑰种植材料的初生芽的伸长。该模型描述了在遣散后的头11周内，插条对插条原始叶面积变化的响应。当叶面积减少约70％或在切断后第7、14或21天去除整片叶子时，该模型可以合理地预测初生芽的伸长，但低估了芽的长度。该模型可以准确预测遣散后头3周的碳水化合物积累。模拟支持以下假设：遣散后的光合作用而不是初始的碳水化合物储备水平是玫瑰单节叶状茎插条的初生枝生长的主要决定因素。

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