Germination of four species of the genus Mimosa (leguminosae) in a semi-arid zone of Central Mexico

来自 Elsevier

阅读量:

78

摘要:

Mimosa depauperata, M. lacerata, M. similis, and M. texana var. texana are dominant leguminous shrubs in the semi-arid region of Queretaro, in central Mexico. These species grow and reproduce under conditions of disturbance; they are occasionally browsed by goats and used for firewood. The effect of temperature on germination, the longevity of the seeds in the field, and the germination potential of seeds parasitized by insects of the family Bruchidae were tested. It was found that the seeds require scarification to germination. The optimum temperature for seed germination of M. similis, M. lacerata, and M. depauperata was between 20°C and 35°C and for M. texana var. texana between 30°C and 35°C. The species germinated just as well beneath the canopy as in open areas in the field. The seeds of each species are parasitized by bruchids of the genus Acanthocelides spp., and seed infestation necessarily had a detrimental effect. The seeds in the seed bank lose their longevity at a rate of 20–73% per year. As with other legumes, Mimosa seeds have a tough seed coat, which influences germination, longevity, and susceptibility to predation by bruchids. The results form this study contribute to an understanding of the phases of germination and the longevity of the seeds of Mimosa in the seed bank in arid and semi-arid communities.

展开

DOI:

10.1016/S0140-1963(02)00265-3

被引量:

101

年份:

2003

通过文献互助平台发起求助,成功后即可免费获取论文全文。

我们已与文献出版商建立了直接购买合作。

你可以通过身份认证进行实名认证,认证成功后本次下载的费用将由您所在的图书馆支付

您可以直接购买此文献,1~5分钟即可下载全文,部分资源由于网络原因可能需要更长时间,请您耐心等待哦~

身份认证 全文购买

相似文献

参考文献

引证文献

引用走势

2007
被引量:13

辅助模式

0

引用

文献可以批量引用啦~
欢迎点我试用!

引用