Castelan-Estrada M, Vivin P, Gaudillère J P
Ecophysiology and Agronomy of Grapevine (ECAV), Department of Agronomy, INRA Bordeaux, Villenave d'Ornon, France.
Ann Bot. 2002 Apr;89(4):401-8. doi: 10.1093/aob/mcf059.
A procedure is described for obtaining allometric regression equations to estimate non-destructively and in a cost-effective manner the current year's above-ground vegetative and reproductive biomass of Vitis vinifera L. Merlot' throughout the growing season. Significant relationships were obtained over a 3-year period (1998-2000) between the dimensions of an individual shoot per vine (i.e. diameter and length) and dry weights of its primary stem, primary leaves and lateral growth. The dry mass of a grape was best estimated from measurements of the basal diameter of the bunch peduncle. Introducing cumulative degree-days as an additional explanatory variable in the equations allowed them to be used irrespective of year and growth stage. Multi-year regressions were used to quantify in detail the seasonal evolution of mature grapevine biomass under the climatic conditions of the Bordeaux area, France, and for differing levels of soil nitrogen.
本文描述了一种获取异速生长回归方程的方法，该方法能以无损且经济高效的方式估算整个生长季节中酿酒葡萄品种“梅洛”当年地上部分营养和生殖生物量。在1998 - 2000年的3年时间里，获得了每株葡萄单个新梢的尺寸（即直径和长度）与其主干、初生叶及侧生生长的干重之间的显著关系。葡萄的干质量最好通过测量果穗梗基部直径来估算。在方程中引入累积度日作为额外的解释变量，使得这些方程可以在不考虑年份和生长阶段的情况下使用。利用多年回归详细量化了法国波尔多地区气候条件下以及不同土壤氮水平下成熟葡萄树生物量的季节性变化。
