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文冠果属于异花授粉植物,多系自然杂交品种(类型),单株产量相差悬殊,遗传性状不稳定。如能育成文冠果纯合二倍体(即自交系),然后配成优良杂交组合,进而建立杂交种子园,择其杂种优势明显、后代表现型整齐一致的良种,直接用于育苗造林,这是使文冠果良种化,达到优质高产的一条新途径。为此,我们从1976年5月开始,进行了文冠果花粉单倍体育种试验。目前,已获得苗木200余株,有的已成功地移植到土壤中。现将三年来的工作简结如下:
Xanthoceras sorbifolia is a cross-pollination plant that has many natural hybrids (types). The yield per plant varies greatly and the genetic traits are not stable. For example, if the male diploid (ie, inbred lines) can be bred, then the hybrids will be dubbed as hybrids, then the hybrid seed orchard will be established, the heterosis is obvious, and the offspring will be used for seedling afforestation This is a new way to make Wen Guan fruit good variety and achieve high quality and high yield. To this end, we started from May 1976, conducted a pollen haploid breeding test. At present, more than 200 seedlings have been obtained, some of which have been successfully transplanted into the soil. The work of the past three years is summarized as follows: