1. Ascher PD (1974) The self-incompatibility reaction in detached styles of Lilium longiflorum Thunb. injected before pollination with 6-methylpurine or puromycin. Incompatibility News 4: 57–60
2. Ascher PD (1975) Special stylar property required for compatible pollen-tube growth in Lilium longiflorum Thunb. Bot Gaz 136: 317–321
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5. Ascher PD, Drewlow LW (1971b) Effect of stigmatic exudate injected into the stylar canal on compatible and incompatible pollen tube growth in Lilium longiflorum Thunb. In: Heslop-Harrison J (ed) Pollen: Development and physiology. Butterworths, London, pp 267–272