紫荆种子的形态特征与物理休眠——普沃达迪植物园活采

D. Lestari, E. R. Firdiana
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引用次数: 1

摘要

紫荆花是一种木本攀援植物,目前已被列为濒危物种。金银花种子为正统种子,形态上被皮坚硬。因此,葡萄球菌的种子经常处于物理休眠状态,这种状态可以通过浸泡在一定的液体介质中来打破。本研究的目的是对白僵菌种子的形态特征进行研究,并确定播前处理方法以促进白僵菌种子的萌发。通过观察种子的定量和定性参数,进行了外部形态鉴定。利用数码显微镜对种子内部形态进行了表征。通过温水和冷水浸泡24小时进行物理休眠打破。形态学特征数据进行描述性分析,种子萌发数据进行定量分析,采用单因素方差分析和LSD检验(置信水平为95%)。果实呈豆荚状,每荚有2-6粒种子,种子长1.36厘米,宽1厘米,厚0.47厘米,重0.5克,长圆形至圆锥形,表面光滑光亮,颜色浅至深褐色。温水浸种能打破白僵菌种子的物理休眠,63%的种子能够发芽,与对照和冷水浸种有显著差异。葡萄球菌种子的发芽技术可从播前处理得知。本研究可为白桦种子的鉴定和萌发技术提供参考。
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Morphological Characterization and Physical Dormancy of Bauhinia winitii Seed: Living Collection of Purwodadi Botanic Garden
Bauhinia winitii Craib (Fabaceae, Caesalpinioideae) is a woody climber which is currently included in endangered species list. B. winitii seeds are orthodox seeds in which it has hard coat morphologically. Therefore, B. winitii seeds often undergo physical dormancy which can be broken through immersion in certain liquid media. This study aimed to characterize the morphology of B. winitii seeds and determine the pre-sowing treatment method to accelerate the seeds germination of B. winitii. External morphological characterization was carried out by observing the seeds quantitative and qualitative parameters. Characterization of seeds internal morphology was conducted using a digital microscope. Physical dormancy breaking was carried out by immersion in warm and cold water for 24 hours. Morphological characterization data were analyzed descriptively, while seed germination data were analyzed quantitatively by using one-way ANOVA followed by LSD test (with  confidence level of 95%). B. winitii has pod-shaped fruits with 2-6 seeds per pod, the seeds are 1.36 cm x 1 cm in size, 0.47 cm thick and weighed 0.5 g, oblong to conical in shape, smooth and shine surface, with light to dark brown in color. Seeds immersion treatment in warm water could break the physical dormancy of B. winitii seeds thus 63% of the seeds were able to germinate and it was significantly different compared to control and cold water immersion treatment. Technical to germinate B. winitii seed can be known from pre-sowing treatment. This study can be used as a reference for seed identification and germination technical of B. winitii seed.
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CiteScore
1.20
自引率
0.00%
发文量
13
审稿时长
16 weeks
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