牡丹的染色体倍数较低且数目较少，是进行多倍体育种的好材料，对其进行多倍体育种是改进其观赏品质、提高其经济价值的有效途径之一。
Peony are good material for polyploid breeding with lower chromosome multiple and less number. polyploid breeding can improve Peony's watches quality and economic value.
例如，一种生物单倍体染色体数目是7，整倍数将是7、14、21、28等数目，并且每条不同的染色体有相等的数目。
For example, if the haploid number is 7, the euploid number would be 7, 14, 21, 28, etc, and there would be equal Numbers of each different chromosome.
1987年和1988年以染色体倍数不同的-15个小麦种为材料，研究不同染色体组成对诱导愈伤组织和分化绿苗的效应。
This study dealt with the effects of chromosome complement on callus induction and differentiation in 15 Triticum species of different Ploidy in 1987-1988.
染色体倍数性鉴定应在6月初至6月中旬进行。
The chromosome multiple should be appraised in early to middle June.
偶线期时，以同源染色体活跃的、特定的配对(联会)为特征，形成了单倍数的二价染色体。
Synapsis (pairing) the association of homologous chromosomes during the prophase stage of meiosis that leads to the production of a haploid number of bivalents.
偶线期时，以同源染色体活跃的、特定的配对(联会)为特征，形成了单倍数的二价染色体。
Synapsis (pairing) the association of homologous chromosomes during the prophase stage of meiosis that leads to the production of a haploid number of bivalents.
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