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小麦花粉育种,是把小麦的花粉采下来,放在人工培养的条件下,使其长苗成株结籽并育成新品种。把植物的花粉进行离体培养,不经过受精作用而单性发育成植株,这种植株不是父(精细胞)、母(卵细胞)双方结合的产物,而只是来自父本一方,因此它的染色体数目只有正常植株的一半,所以叫单倍体。小麦花粉育种,目前主要作为杂交育种的一个环节。花粉培养的植株,因为染色体不成对,一般只开花不结实,通过人工或自然加倍,使它的染色体数目增加一倍,就变成了能结实的纯合二倍体,这种植株
Wheat pollen breeding, the wheat pollen is taken down, placed under artificial conditions, the seedlings into seedlings and bred into new varieties. Plant pollen in vitro culture, without fertilization and unipolar development of plants, the plant is not the parent (sperm), mother (egg) both the combination of products, but only from one side of the paternity, so its chromosome The number of plants is only half of the normal, so called haploid. Wheat pollen breeding, mainly as a part of crossbreeding. Pollen-grown plants, because chromosomes are unpaired, generally bloom only poorly, artificially or naturally doubly to double their number of chromosomes to become robust homozygous diploids,