沙罗单竹开花现象及种子形态描述  

The Flowering Phenomenon of Schizostachyum funghomii McClure and the Seeds Morphological Description

作　　者：李立杰[1] 黄大勇[1] 徐振国[1] 

机构地区：[1]广西壮族自治区林业科学研究院,南宁530001

出　　处：《种子》2013年第12期10-11,15,共3页Seed

基　　金："十二.五"国家科技支撑计划课题(编号:2012 BAD 23 B 05);广西林科院基本科研业务费专项"广西主要丛生竹种子萌发特性研究"(编号:林科201210号)

摘　　要：对沙罗单竹开花现象及其种子形态进行描述,主要结论如下:沙罗单竹为多年生一次性开花结实、枯死竹种;4月初为盛花期,持续时间8 d左右;花枝无叶,为穗状花序;小穗红紫色,长卵形,颖片一般具有3枚,内稃长于外稃;种子为颖果,长15.46～24.42 mm,宽2.03～4.51 mm,狭卵形或卵状椭圆形;种子净度为72%,平均发芽率为79.6%,第8～9天出现发芽高峰。The flowering phenomenon of Schizostachyum funghomii McClure and the seeds morphological description were described. The results showed that：Schizostachyum funghomii McClure belongs to flowering branch type, and they were perennial plants, once flowering and fruiting, they will die. The full-bloom stage was beginning of april,8 days in duration. The flower branch was leafless and spike. Spikelet was reddish purple, ovate-oblong,3 glumes, palea was longer than lemma. The seeds was caryopsis, the seeds was narrowly ovate or ovate elliptic ,which length and width were 15.46 -24.42 mm and 2.03 -4.51 mm. The seed purity was 72% and the average germination percentage was 79.6%. There was a peak of germination vigor on the 8 - 9 rd day.

关 键 词：沙罗单竹 开花现象 种子形态 

分 类 号：S795[农业科学—林木遗传育种]