不同地区银杏古树开花生物学特性研究1—— 开花物候期和花穗特征分析
不同地区银杏古树开花生物学特性研究1—— 开花物候期和花穗特征分析
王国霞 杨玉珍 曹福亮 张晓燕Studies on the Biological Character of Flowering of Ancient Male Ginkgo Biloba Trees in Different Areas——1,Analysis of Flowering Phenology and the feature of flower spikes
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摘要
本文对我国主要银杏产区的33棵百年以上的银杏古树开花生物学特性进行了研究。研究结果表明：2006年银杏古树雄株开花时间从3月底到4月中旬，花期3-7天不等，从南到北相继开花；33个银杏古树雄株2-4年生具花短枝上花穗数从3.1~6.02个不等，平均为4.53个；花穗长在16.55~32mm之间，平均为25.25mm；花穗宽5.2~8.19mm，平均为6.83mm；单个银杏花穗上的花药个数在36.68~73.26之间，平均为50.31个。方差分析结果表明，上述指标不同雄株间差异均极显著。
Abstract
The biological character of flowering were studied in 33 ancient male ginkgo trees which came from main distribution areas of Ginkgo Boliba L in China. The results showed that the flowering period of male ginkgo trees ranged from late March to middle April and flowering lasted for 3～7 days from south to north in 2006; the number of flower spikes on short shoot of 33 ancient male ginkgo trees ranged from 3.1 to 6.02 per shoot and the average number was 4.53 per shoot; the length of flower spikes ranged from 16.55mm to 32mm and the average number was 25.25mm; the width of flower spikes ranged from 5.2mm to 8.19mm and the average number was 6.83mm; the anther number of flower spikes ranged from 36.68 to73.26, and the average number was 50.31. Variance analysis indicated that 4 indexes among 33 ancient male ginkgo trees had significant difference.
关键词
花穗{{custom_keyword}} /
Key words
Flower spikes{{custom_keyword}} /
王国霞 杨玉珍 曹福亮 张晓燕.不同地区银杏古树开花生物学特性研究1—— 开花物候期和花穗特征分析. 中国农学通报. 2013, 29(22): 1-5 https://doi.org/10.11924/j.issn.1000-6850.2013-0797
Studies on the Biological Character of Flowering of Ancient Male Ginkgo Biloba Trees in Different Areas——1,Analysis of Flowering Phenology and the feature of flower spikes. Chinese Agricultural Science Bulletin. 2013, 29(22): 1-5 https://doi.org/10.11924/j.issn.1000-6850.2013-0797
参考文献
王国霞 杨玉珍 曹福亮 张晓燕 .不同地区银杏古树开花生物学特性研究1—— 开花物候期和花穗特征分析.中国农学通报 ,2013,29(第22期8月): 1-5
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