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文冠果长期处于野生状态生长,经过自然杂交,造成类型混杂,单株间种子产量相差悬殊.目前生产上用的苗木多是由种子繁殖的,栽植后有的植株不能结果,这样的植株占20%左右,群众称之为“骡子树”.这类树只开雄花,没有雌花,或只开没有雌、雄蕊的重瓣花,因此不能结果.文冠果是一种结实早的树种.如果在苗圃地一年生苗木留床,第二年有的就能结果.如果用一年生苗木造林、定植后第三年即可结果.据我们观察,文冠果具有壮枝、壮芽、长果枝结果多的特性.我省西部地区在荒山上大面积栽植的文冠果幼林,由于栽植后不加管理,树势很弱,不能形成壮枝、壮芽和长枝,所以产生只开花不结果的现象.
In the long-term growth of wild cornscens, after natural hybridization, resulting in mixed types, the yield difference between single-species seedlings are currently used in the production of seedlings are multiplied by the seeds, after planting some plants can not result in such plants About 20%, the masses call it “mule tree.” Such trees only open male flowers, no female flowers, or only open without female, stamens double flower, and therefore can not result. If nursery annual seedlings stay bed, some will be able to bear fruit the second year.If the annual seedlings afforestation, planting the third year after the results.According to our observation, the text of the crown with strong branches, strong sprouts, fruit branch results Many characteristics of the western region of our province in the barren hills planting a large area of young trees, due to unmanaged planting, the tree is very weak, can not form strong branches, strong sprouts and long branches, resulting in only flowering no results phenomenon.