核桃生殖器官的矿质营养动态

核桃生殖器官中矿质营养浓度随不同发育阶段而变化。雄花芽早春的活动伴随着很快的水合反应，随着其发育速度的加快，矿质营养含量随之增加。到了成熟阶段，随成熟度增加，干、鲜重均出现减少的趋势。雄花芽中，矿质元素的重复利用率以N、P、Mn、Cu、Zn较高。在雌花芽中，所有矿质元素在受精后，均不断增加，干重增长率高于矿质营养增长率。

The Status of Mineral Nutrients by Walnut Tree Reproductive Organs

The mineral nutrents of walnut tree reproductive organs has varieties during the different seasonal. Catkins emergence was accompanied by a very fast hydrations,the dry and fresh weight were increase during the catkins development period.After it's matured, they were all reduced . Nutrients remobilition level from the catkins, higher for N,P,Mn,Cu,Zn. The female flowers dry and fresh weight were increase during the development period, all nutrients in female flowers increased, after fertilization, the dry weight accumulation rate was higher than the nutrients accumulation rates.