|Table of Contents|

Effect of Increasing Precipitation on Life History of Annual Brassicaceae Specie Descurainia sophia in Cold Desert(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2016年17
Page:
76-81
Research Field:
Publishing date:

Info

Title:
Effect of Increasing Precipitation on Life History of Annual Brassicaceae Specie Descurainia sophia in Cold Desert
Author(s):
TANG LinghongWANG YongqiuLUO NanaWU Yanfeng
(College of Grassland and Environment Sciences,Xinjiang Agricultural University,Urumqi,Xinjiang 830052)
Keywords:
increasing precipitationJunggar Desertemphemeral plantsDescurainia sophialife history
PACS:
-
DOI:
10.11937/bfyy.201617019
Abstract:
Taking annual ephemeral plant Descurainia sophia in the Junggar Desert as experimental material,the influences of watering on life history plasticity of annual plants were studied by simulating precipitation,in order to explore the response of annuals to changes in water.The results showed that plants could entry into the flowering date and fruiting date earlier under the treatment of precipitation,then extended the duration of flowering and fruiting;fruit rate,plant height,number of branches and leaves also increased significantly by watering(P<0.05).Also,biomass of spring-germinating and autumn-germinating plants(0.612 1 g and 1.210 5 g) were bigger than those (0.458 3 g and 1.002 5 g) of control(P<0.05).Under the background of increasing precipitation,emphemeral plants improved the adaptation to desert environment,and it had an important significance to the protection of desert ecosystem,rational utilization of resources and sustainable development of region.

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Last Update: 2016-10-13