南方农业学报Issue(2)：216-222,7.DOI:10.3969/jissn.2095-1191.2015.2.216
4种柱花草种子萌发形态的观察与分析
Observation on germinating seed morphogensis of four kinds of stylo
摘要
Abstract
Objective]Seed morphological characteristics and the changes in seed germination process of four kinds of stylo were observed and analyzed to provide references for further study on seed characteristics , developmental mech-anism , embryo germination and stylo cross breeding . [Method]Four kinds of stylo , including S. guianensis SW . cv . Reyan No.2, S. hamata(L.)Taub.cv. Verano, S. scabra Vog cv. Seca and S. hippocampoides Fine stem stylo were used to investigate embryo changes, germ and radicle length in the germination. [Result]The results showed that pod shape and coat color of seeds of four stylo varieties were different , but the processes of seed germination were basically the same, which could be divided into 5 morphological types. Different varieties varied in cotyledon color, germ growth time and plumule length. The cotyledon of Reyan No.2, Verano, Seca and S. hippocampoides Fine stem stylo expanded when buds grew to 5.7, 4.0, 4.0 and 3.2 centimeters, respectively. Germ of Verano stylo ran out on fifth day of seed germination, while the other three kinds of stylo on the fourth day. Except Seca stylo, the other three types had lateral roots. The bud length of Seca and Reyan No.2 stylo was longer than Verano Stylo , and Fine stem stylo was the short-est . [Conclusion]Seed pod , seed coat color and cotyledon color during the germination , germ growth time and plumule length are different among the four varieties of stylo. These differences can be used as research indicators for seed characteristics, seed development mechanism and embryo germination.关键词
柱花草/种子萌发/形态变化Key words
stylo/seed germination/morphology change分类
农业科技引用本文复制引用
张瑜,严琳玲,虞道耿,杨虎彪,白昌军..4种柱花草种子萌发形态的观察与分析[J].南方农业学报,2015,(2):216-222,7.基金项目
农业部农作物种质资源保护项目（2015NWB047）；中国农业科学院热带作物品种资源研究所基本科研业务费专项项目 （）
