Self-compatible and-incompatible Reactions in Asiatic Hybrid Lilium X 'Enchantment': Influence of Pistil Age on Seed Set
Self-compatible and-incompatible Reactions in Asiatic Hybrid Lilium X 'Enchantment': Influence of Pistil Age on Seed Set
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亚洲杂交百合 X Enchantment 的自交亲和和不亲和反应：雌蕊年龄对结实的影响
DOI：
10.2503/jjshs.65.835
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发表时间：
1997
影响因子：
--
通讯作者：
K. Matsuo
中科院分区：
文献类型：
--
作者：
Y. Niimi;T. Li;K. Matsuo
异花授粉（L. hybrid 'Enchantment' x L. maculatum Thunb.）是在开花之前还是之后。雌蕊的可授性从开花前6d（第-6天）开始观察到开花后6d（第+6天）。在第0天进行的杂交中，成熟种子的数量为每蒴果185粒，而在第+2天的杂交中，每蒴果产生236粒种子。第0天自花授粉的花没有产生种子，并且雌蕊中的花粉管长度/花柱长度的比率为0.85。与第+3天自交的花相比，观察到许多异常的花粉管，其球根状顶端肿胀或变形，生殖核分裂延迟。第-3、-2、-1、+1、+2、+4和+6天的自花授粉花发育为蒴果。来自第+6天花的蒴果产生46粒成熟种子，而其他蒴果仅产生13至27粒种子。这些结果表明L. X 'Enchantment'是一个较弱的自交不亲和品种。当种子产生的花自花授粉或异花授粉在不同时期种植，发芽时间和最终发芽率的差异进行了观察。在第0天制备的异花授粉的成熟种子中，75%发芽;在第+2天制备的自花授粉的种子中，72%发芽，而在第+6天制备的自花授粉的种子中，仅44%发芽。
Cross-pollination (L. hybrid 'Enchantment' x L. maculatum Thunb.) was made before or after anthesis. The receptivity of pistils was observed from 6 days before anthesis (day-6) to 6 days after flowering (day +6). On crossing made on day 0, the number of mature seeds was 185 per capsule, whereas those on day + 2 yielded 236 seeds per capsule. Flowers self-pollinated on day 0 yielded no seeds, and the ratio of pollen-tube length / style-length in the pistil was 0.85. Numerous abnormal pollen tubes with swollen or deformed bulbous tips with delayed generative nuclear division were observed compared with flowers selfed on day +3. Self-pollinated flowers on day-3, -2, -1, +1, +2, +4, and +6 developed capsules. Capsules from day +6 flowers produced 46 mature seeds, whereas the others yielded only 13 to 27 seeds per capsule. These findings show that L. X 'Enchantment' is a relatively weak self-incompatible cultivar. When seeds resulting from flowers self-or cross-pollinated at different stages were planted, differences in germination time and final germination percentage were observed. Of the cross-pollinated mature seeds made on day 0, 75% germinated; of the self-pollinated seeds made on day + 2, 72% germinated, whereas those made on day + 6, only 44% germinated.