论文部分内容阅读
为了解金黄熊猫(Xanthostemon chrysanthus F.Muell.exBenth)在广州市生长结实表现及其果实与种子特征,本文以广州市天河区龙洞种植的6年生金黄熊猫植株为材料,选取10个单株对金黄熊猫植株生长结实表现、果实及种子特征进行了测定和统计。结果表明:金黄熊猫单株间生长表现差异较大,植株病虫害轻,结实量差异大,果实成熟度不一致,10个单株树高、冠幅、胸径、枝下高、果质量、果序数量范围分别为4~5.3m,2.99~14m2,5.7~9.2cm,0.9~2.1m,3.4~9.7kg,117~404个;同一个单株及单株间果序大小差异极大,单果序质量、单果序分枝数以及单果序蒴果数范围分别为17.99~166.87g,5~59个,16~161个;500个单果横径、纵径、质量、种子粒数、种子质量变异系数均在10%以上,范围分别为8.18~15.02mm,6.66~14.58 mm,0.51~2.93g,46~127粒,0.06~0.5g,单果萼片3~8裂,子房室数3~4(稀5)室;种子棕褐色,类三角形、肾形,千粒质量3.34±0.07g,种子长、宽变异系数在13%以上。
In order to understand the growth and fruiting of the golden panda (Xanthostemon chrysanthus F.Muell.exBenth) in Guangzhou and its fruit and seed characteristics, this paper took 6-year-old golden panda plants planted in Longdong, Tianhe District, Guangzhou as material, Panda plant growth and fruiting, fruit and seed characteristics were measured and statistics. The results showed that the growth performance of golden panda varied greatly among different plants. The plant pests varied greatly between light and strong, and the fruit maturity was not consistent. The height, crown width, DBH, branch height, fruit quality, fruit number The results showed that the order of single fruit and single fruit was very different, the single fruit weight , The number of single fruit order branches and the number of single fruit capsules ranged from 17.99 to 166.87g, from 5 to 59 and from 16 to 161, respectively. The variation coefficient of the diameter, length, quality, seed number and seed quality of 500 single fruit were 10%, respectively, ranging from 8.18 to 15.02 mm, 6.66 to 14.58 mm, 0.51 to 2.93 g, 46 to 127 grains, 0.06 to 0.5 g, 3 to 8 cracking in sepals and 3 to 4 in ovary. Room; seed tan, triangular, kidney-shaped, 1000 grain quality 3.34 ± 0.07g, seed length, width variation coefficient of more than 13%.