Potential Inbreeding in a Small Population of a Mass Flowering Species, <i>Xanthorrhoe

来源 :美国植物学期刊(英文) | 被引量 : 0次 | 上传用户:wuwuwujduuez
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Xanthorrhoea johnsonii is a long lived slow growing perennial understorey species, that produces a large quantity of passively dispersed seed every 3 - 5 years. Reproductive maturity is not reached until 20 - 30 years of age. The temporal asynchrony of th
其他文献
<正> 2001年国庆黄金周,上海市公路客运出现了比春运和五一黄金周更为火爆的景象,涨幅惊人。10月1日至7日,全市发送公路旅客55.6万人次,比2000年同比增长91.5%,外地到沪的公路
目的研究腹腔镜胃癌根治术对凝血功能的影响。方法将本院收治的28例接受腹腔镜胃癌根治术的胃癌患者作为研究组,另选取同期接受常规开腹胃癌根治术的32例患者作为对照组,对比2
The objective of this work was to evaluate the progress of the areolate mildew of cotton under different soil cover and spacing conditions. The experiment was c
The present study describes a direct shoot regeneration-based micropropagation procedure for Vanilla planifolia. Two types of explant (i.e. shoot apex and stem
This paper provides a description of the articulated species of the Tribe Janieae (Corallinales, Rhodophyta) in the Pacific coast of Baja California and Gulf of
完了!完了!离最后一班公交车只有二十分钟了,可是我还没有找到老师要求买的《英语词典》。我急急忙忙地走进一家书店。记得上个星期也是在这里买的珍藏版的《疯狂阅读》。老板
(1)黏度性:在ABS系统中,制动液的通路更长、更曲折,致使制动液在流动过程中受到的阻力较大。另外、在ABS系统中,运动零件更多、更精密,这些运动零件对润滑的要求也更高。因此,ABS系统
The Food and Agriculture Organization has highlighted pineapple as one of the most important tropical fruits. Since classical pineapple breeding is difficult, b
Currently development of new marker types has shifted from anonymous DNA fragments to gene-based markers. Simple Sequence Repeats (SSRs) are useful DNA markers
目的探讨肺复张(RM)策略抢救急性呼吸窘迫综合征(ARDS)患者的最佳PEEP设置。方法将37例ARDS患者采用压力控制法肺复张后随机分为治疗组(n=19)和对照组(n=18),分别以P-V曲线呼气支拐点