Depth of soil compaction predominantly affects rice yield reduction by reproductive-stage drought at varietal screening sites in Bangladesh, India, and Nepal

Aims Drought is the major constraint to rainfed rice productivity in South Asia, but few reports provide detailed characterization of the soil properties related to drought stress severity in the region. The aim of the study was to provide a compilation of drought breeding network sites and their re...

Full description

Saved in:
Bibliographic Details
Published in:Plant and soil 2017-08, Vol.417 (1/2), p.377-392
Main Authors: Singh, Suresh Prasad, Jain, Abhinav, Anantha, M. S., Tripathi, Santosh, Sharma, Subarna, Kumar, Santosh, Prasad, Archana, Sharma, Bhawana, Karmakar, Biswajit, Bhattarai, Rudra, Das, Sankar Prasad, Singh, Shravan K., Shenoy, Vinay, Babu, R. Chandra, Robin, S., Swain, Padmini, Dwivedi, J. L., Yadaw, Ram Baran, Mandal, Nimai P., Ram, T., Mishra, Krishna Kumar, Verulkar, S. B., Aditya, Tamal, Prasad, Krishna, Perraju, Puvvada, Mahato, Ram Krishna, Sharma, Sheetal, Raman, K. Anitha, Kumar, Arvind, Henry, Amelia
Format: Article
Language:English
Subjects:
Bangladesh
Biomedical and Life Sciences
Breeding
Comparative analysis
Drought
Droughts
Ecology
Farming
Geographical distribution
Hardpan soils
Life Sciences
Nepal
Observations
Penetration resistance
Physical properties
Physiological aspects
Plant breeding
Plant Physiology
Plant Sciences
Plant-soil relationships
Puddling
Reduction
Regular
Regular Article
Research centers
Rice
Screening
Soil compaction
Soil properties
Soil resistance
Soil Science & Conservation
Soil stabilization
Soil stresses
Soils
Stations
Stress concentration
Water availability
Yield
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Aims Drought is the major constraint to rainfed rice productivity in South Asia, but few reports provide detailed characterization of the soil properties related to drought stress severity in the region. The aim of the study was to provide a compilation of drought breeding network sites and their respective levels of drought stress, and to relate soil parameters with yield reduction by drought. Methods This study characterized levels of drought stress and soil nutrient and physical properties at 18 geographically distributed research station sites involved in rice varietal screening in Bangladesh, India, and Nepal, as well as at farmers' fields located near the research stations. Results Based on soil resistance to penetration profiles, a hardpan was surprisingly absent at about half of the sites characterized. Significant relationships of depth of compaction and yield reduction by drought indicated the effects of soil puddling on susceptibility to cracking, rather than water retention by hardpans, on plant water availability in this region. The main difference between research stations and nearby farmers' fields was in terms of soil compaction. Conclusions These results present an initiative for understanding the range of severities of reproductive-stage drought stress in drought-prone rainfed lowland rice-growing areas in South Asia.
ISSN:0032-079X
1573-5036
DOI:10.1007/s11104-017-3265-2