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globalchange > 过去全球变化的重建

DOI:	10.1371/journal.pone.0146079
论文题名:	The Role of Light in the Emergence of Weeds: Using Camelina microcarpa as an Example
作者:	Aritz Royo-Esnal; Russell W. Gesch; Frank Forcella; Joel Torra; Jordi Recasens; Jevgenija Necajeva
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2015
发表日期:	2015-12-30
卷:	10, 期:12
语种:	英语
英文关键词:	Evolutionary emergence ; Seedlings ; Daylight ; Seeds ; Weeds ; Seasons ; Autumn ; Spring
英文摘要:	When modelling the emergence of weeds, two main factors are considered that condition this process: temperature and soil moisture. Optimum temperature is necessary for metabolic processes that generate energy for growth, while turgor pressure is necessary for root and shoot elongation which eventually leads to seedling emergence from the soil. Most emergence models do not usually consider light as a residual factor, but it could have an important role as it can alter directly or indirectly the dormancy and germination of seeds. In this paper, inclusion of light as an additional factor to photoperiod and radiation in emergence models is explored and compared with the classical hydrothermal time (HTT) model using Camelina microcarpa as an example. HTT based on hourly estimates is also compared with that based on daily estimates. Results suggest that, although HTT based models are accurate enough for local applications, the precision of these models is improved when HTT is estimated hourly and solar radiation is included as a factor.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0146079&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/20401
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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File Name/ File Size	Content Type	Version	Access	License
journal.pone.0146079.PDF（788KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Dpt. D’Hortofruticultura, Botànica i Jardineria, Agrotecnio, Universitat de Lleida. Alcalde Rovira Roure 191, 25198, Lleida, Spain;USDA-ARS-North Central Soil Conservation Research Laboratory, 803 Iowa Avenue, Morris, Minnestoa, 56267, United States of America;USDA-ARS-North Central Soil Conservation Research Laboratory, 803 Iowa Avenue, Morris, Minnestoa, 56267, United States of America;Dpt. D’Hortofruticultura, Botànica i Jardineria, Agrotecnio, Universitat de Lleida. Alcalde Rovira Roure 191, 25198, Lleida, Spain;Dpt. D’Hortofruticultura, Botànica i Jardineria, Agrotecnio, Universitat de Lleida. Alcalde Rovira Roure 191, 25198, Lleida, Spain;Dpt. Plant Physiology, University of Latvia. Kronvalda bulv. 4, 1586, Riga, Latvia

Recommended Citation:

Aritz Royo-Esnal,Russell W. Gesch,Frank Forcella,et al. The Role of Light in the Emergence of Weeds: Using Camelina microcarpa as an Example[J]. PLOS ONE,2015-01-01,10(12)

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