To assess relative efficiency and identify efficient pollen source among maize and Imperata cylindrica for haploid induction, 21 maize and two Imperata cylindrica genotypes were hybridized as pollen parent with each of the four hexaploid, two tetraploid wheats and two genotypes of triticale following wheat × maize and wheat × Imperata cylindrica system of haploid induction. Observations for haploid induction parameters showed Imperata cylindrica as significantly superior pollen source than maize. Mean PFF, EFF, HRF and HFF obtained with Imperata were 55.05%, 24.07%, 18.58% and 4.96%, respectively, whereas the frequencies recorded with maize were 53.80%, 6.72%, 39.36% and 1.71%, respectively. Triticale remained nonresponsive to embryo formation with both the pollen species. The line × tester analysis showed significant effects of both male and female genotypes on all the haploid induction parameters. Analysis of GCA revealed differences among pollen sources in their potential to induce haploids. In maize, genotypes HPMC-57, HPMC-58, HPMC-25 for EFF and HPMC-58 for HFF emerged out to be best general combiners, while in the case of Imperata, GCA values were high for Ic-ye genotype. The present study put forth Imperata as an efficient pollen source over maize for haploid induction in hexaploid and tetraploid wheats.

中文翻译：

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采用染色体消除介导的双单倍体育种方法对六倍体和四倍体小麦和黑小麦中不同喜马拉雅玉米（Zea mays）和白茅（Iperata cylindrica）基因库的单倍体诱导效率

为了评估相对效率并确定玉米和白茅草单倍体诱导的有效花粉来源，将 21 种玉米和两种白茅草基因型作为花粉亲本与小麦×玉米和小麦×玉米之后的四种六倍体、两种四倍体小麦和两种小黑麦基因型中的每一种杂交。小麦×白茅单倍体诱导系统。单倍体诱导参数的观察表明白茅是比玉米明显优越的花粉来源。白茅草获得的平均 PFF、EFF、HRF 和 HFF 分别为 55.05%、24.07%、18.58% 和 4.96%，而用玉米记录的频率分别为 53.80%、6.72%、39.36% 和 1.71%。黑小麦对两种花粉种类的胚胎形成均无反应。线×测试仪分析显示男性和女性基因型对所有单倍体诱导参数都有显着影响。GCA 的分析揭示了花粉来源在诱导单倍体的潜力方面存在差异。在玉米中，EFF 的 HPMC-57、HPMC-58、HPMC-25 和 HFF 的 HPMC-58 基因型是最好的通用组合器，而在白茅的情况下，Ic-ye 基因型的 GCA 值很高。本研究提出白茅根是一种有效的花粉来源，用于在六倍体和四倍体小麦中诱导单倍体。Ic-ye 基因型的 GCA 值很高。本研究提出白茅根是一种有效的花粉来源，用于在六倍体和四倍体小麦中诱导单倍体。Ic-ye 基因型的 GCA 值很高。本研究提出白茅根是一种有效的花粉来源，用于在六倍体和四倍体小麦中诱导单倍体。