摘要： 以浓毛型辣椒9024为试材,研究其茸毛性状的分布规律;同时,比较了辣椒9024与茄科其他6种作物的光合性能指标。结果表明,在辣椒9024发育的不同时期,各时期的第1片真叶叶片正面、背面、叶柄及茎段的茸毛密度差异明显,以一叶一心期的茸毛密度最大;在七叶期,不同真叶、叶柄及相邻茎段的茸毛随着真叶离生长点越近,密度越大;在不同的光强下,辣椒9024的净光合速率低于茄子,但显著高于其余4种辣椒,其最大值为21.2μmol/(m²·s),表明其既耐弱光,又具有较高的光合效率,在育种方面具有很大的潜力。

关键词: 辣椒, 茸毛, 净光合速率

Abstract: By using pepper 9024 of thick trichome as material,distribution pattern of trichome character at seedling stage and photosynthesis indexes were studied. The results showed that,during its different growth period at seedling stage,trichome density of its first leaf,leafstalk and stem segment had obvious difference,with the greatest density at one and a half leaves stage and at seven and a half leaves stage,the nearer of the leaf to the growing tip,the greater density of trichome. When comparing photosynthesis indexes,though lesser than two kinds of eggplant,net photosynthetic rate of pepper 9024 was larger than those 4 kinds of pepper on significant level,and its greatest rate was 21. 2 μmol /(m²·s), indicating its big potential of breeding for poor light adaptability and high photosynthetic efficiency.

Key words: Pepper, Trichome, Net photosynthetic rate

中图分类号: 

• S641.3