Morphology of Pollen Grains Obtained from Dried Specimens of Spiny and Spineless Sago Palms Grown at Distant Sites in Indonesia
スポンサーリンク
概要
- 論文の詳細を見る
The morphology of the pollen grains obtained from dried specimens of one spiny and one spineless folk varieties grown at distant sites, West Papua (Irian Jaya) and West Sumatra, in Indonesia was examined to investigate intra-specific differences in sago palm (<I>Metroxylon sagu</I> Rottb.) . The two folk varieties displayed both perfect (hermaphrodite) and male (staminate) flowers on a single palm. The two flower types did not differ in size in either folk varieties and the gynoecium was reduced to a pistillode in the male flower. Pollen grains were produced from hermaphrodite and staminate flowers in both folk varieties, and were examined by SEM. The pollen grains were equatorially disulcate, i.e. they exhibited two germination apertures on the short equatorial axis of the pollen grains. <I>In vitro</I>, the general shape of the pollen grains was ellipsoid. There were variations in the pollen grain shape from the hermaphrodite and staminate flowers in both folk varieties, presumably due to the level of contraction or expansion of the pollen grain wall (exine) . However, there were no distinct differences in the shape between the pollen grains produced from hermaphrodite or staminate flowers in either folk varieties. In the hermaphrodite and staminate flowers of both folk varieties, the tectum of the pollen grains was psilate (smooth), and often sparsely perforated. We did not record any significant differences in the exine characteristics or, in the pollen grain shape, in the two folk varieties examined.
- 日本熱帯農業学会の論文
日本熱帯農業学会 | 論文
- 貯蔵中のランブータン果実の細胞壁代謝に及ぼす低温障害の影響
- 海南島での永年作物への被陰樹
- 台湾におけるカイラン在来品種群のアイソザイム多型性
- 近赤外分光分析法によるサトウキビ品質評価
- 41. マンゴーの花芽分化に及ぼす2、3の処理の影響について