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Seed morphological characteristics, storage behavior, and germination pattern of Combretum indicum (L.) DeFilipps
Genetic Resources and Crop Evolution ( IF 1.6 ) Pub Date : 2021-07-06 , DOI: 10.1007/s10722-021-01239-9
Renerio P. Gentallan Jr. 1 , Michael Cedric B. Bartolome 1 , Reneliza D. Cejalvo 1 , Emmanuel Bonifacio S. Timog 1, 2 , Nestor C. Altoveros 1 , Teresita H. Borromeo 1 , Leah E. Endonela 1
Affiliation  

Combretum indicum (L.) DeFilipps seeds have anthelmintic properties and are recognized to be medicinal; however, the array of their morphological characters, behavior in storage, and germination pattern are not yet established. This is the first detailed report elucidating the seed characteristics of C. indicum which may influence postharvest handling, longevity in storage, and conservation strategy among others. Seeds of 10 C. indicum accessions from the Philippine Biorepository Network were morphologically characterized in situ and ex situ. Previously stored seeds were subjected to desiccation and cold treatments to identify behavior in storage. Germination tests were conducted to identify the viability of the seeds in the various treatments, and seedling development was recorded and framed according to the extended Biologische Bundesanstalt, Bundessortenamt und CHemische Industrie (BBCH) scale. C. indicum seed shape ranged from elliptic to ovate with stellate, five-winged, angular cross-section. It has 16.30 ± 3.06 mm length and 6.62 ± 0.75 mm diameter. Its morphological characters were found to characteristically vary between accessions indicating infraspecific diversity. Its seeds are orthodox as they could tolerate drying to about 1.65% moisture content and subsequent storage in − 18 °C for 60 days. Days to seed germination ranged from 5 to 44 days after sowing. It has a hemi-cryptocotylar hypogeal germination pattern which starts with the characteristic emergence of the radicle at the stylar-end (BBCH 05) and distinctly culminates in the unfolding of a pair of leaves arranged in an opposite to sub-opposite manner (BBCH 11).



中文翻译:

Combretum indicum (L.) DeFilipps 种子形态特征、贮藏行为和萌发模式

Combretum indicum (L.) DeFilipps 种子具有驱虫特性并且被认为是药用的;然而,它们的形态特征、贮藏行为和发芽模式的阵列尚未确定。这是第一份详细说明C. indicum种子特性的详细报告,这些特性可能影响收获后处理、储存寿命和保护策略等。10 C. indicum种子来自菲律宾生物储存库网络的种质在原位和非原位进行了形态学表征。先前储存的种子经过干燥和冷处理以鉴定储存行为。进行发芽测试以鉴定种子在各种处理中的生存力,并根据扩展的 Biologische Bundesanstalt、Bundessortenamt und CHemische Industrie (BBCH) 量表记录和确定幼苗发育。C. indicum种子形状从椭圆形到卵形不等,具有星状、五翅、有角的横截面。它的长度为 16.30 ± 3.06 mm,直径为 6.62 ± 0.75 mm。发现其形态特征在不同种质之间存在特征性变化,表明种下多样性。它的种子是正统的,因为它们可以忍受干燥至约 1.65% 的水分含量,然后在 - 18 °C 下储存 60 天。播种后种子发芽的天数为 5 至 44 天。它具有半隐子叶胚萌发模式,从花柱末端的胚根的特征性出现开始(BBCH 05),并在一对以相反或亚对向方式排列的叶子(BBCH 11)展开时明显达到高潮)。

更新日期:2021-07-06
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