Arid
Water-saving irrigation strategies affect tuber water relations and nitrogen content of potatoes
Ahmadi, S. H.; Agharezaee, M.; Kamgar-Haghighi, A. A.; Sepaskhah, A. R.
通讯作者Ahmadi, S. H.
来源期刊INTERNATIONAL JOURNAL OF PLANT PRODUCTION
ISSN1735-6814
EISSN1735-8043
出版年2016
卷号10期号:3页码:275-288
英文摘要

The dynamic and static deficit (DDI, SDI), partial root drying (DPRD, SPRD) and full (FI) irrigation strategies were applied in Agria and Ramos potato cultivars in a semi-arid area. FI received 100% of the potential evapotranspiration (ET); SDI and SPRD received 75% of ET during the growth period; DDI and DPRD received 90% of ET in the first third, 75% of ET in the second third and 50% of ET in the last third of growth period. Results showed that fresh tuber yield and tuber nitrogen (N) content were negatively correlated meaning that by increasing the tuber N content, tuber yield decreased. PRD irrigation strategy had significantly the highest tuber N content than FI and DI. Dry matter water productivity (WPDM) was significantly different between the irrigation strategies. The DI strategies had significantly higher WPDM than FI and PRD ones. DDI and DPRD increased WPDM by 26 and 19% compared to SDI and SPRD, respectively. WPDM in Ramos (1.08 kg m(-3)) was higher than Agria (0.82 kg m(-3)). The newly introduced Dry Matter-Water Content Index (DMWCI) was higher in PRD and Agria than DI and Ramos, respectively. Conclusively, the DI treatments are the recommended water saving-irrigation strategies under these experimental conditions in terms of highest WPDM and greater dry matter allocation to tubers, though the PRD irrigation strategy had higher tuber N content. Ramos is the favored potato cultivar for processing industry based on its higher WPDM and tuber dry matter content than Agria.


英文关键词Static and dynamic deficit irrigation Static and dynamic partial root drying irrigation Tuber nitrogen Dry matter water productivity Dry matter-Water Content Index Potato
类型Article
语种英语
国家Iran
收录类别SCI-E
WOS记录号WOS:000383347700002
WOS关键词ZONE DRYING IRRIGATION ; FIELD-GROWN POTATOES ; USE EFFICIENCY ; DEFICIT IRRIGATION ; SOLANUM-TUBEROSUM ; FURROW IRRIGATION ; ROOT-GROWTH ; ALTERNATE ; YIELD ; PRODUCTIVITY
WOS类目Agronomy
WOS研究方向Agriculture
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/193773
作者单位Shiraz Univ, Irrigat Dept, Fac Agr, Shiraz, Iran
推荐引用方式
GB/T 7714
Ahmadi, S. H.,Agharezaee, M.,Kamgar-Haghighi, A. A.,et al. Water-saving irrigation strategies affect tuber water relations and nitrogen content of potatoes[J],2016,10(3):275-288.
APA Ahmadi, S. H.,Agharezaee, M.,Kamgar-Haghighi, A. A.,&Sepaskhah, A. R..(2016).Water-saving irrigation strategies affect tuber water relations and nitrogen content of potatoes.INTERNATIONAL JOURNAL OF PLANT PRODUCTION,10(3),275-288.
MLA Ahmadi, S. H.,et al."Water-saving irrigation strategies affect tuber water relations and nitrogen content of potatoes".INTERNATIONAL JOURNAL OF PLANT PRODUCTION 10.3(2016):275-288.
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