Drought Tolerance Characteristics of Brazilian Soybean Cultivars— Evaluation and characterization of drought tolerance of various Brazilian soybean cultivars in the field —
Drought is one of the major constraints for soybean production in Brazil. Seed yield of ten Brazilian soybean cultivarssheltered from rain (drought stress) for one month after the first flowering was examined over two growing seasons in the field in Londrina, Brazil. The drought tolerance on the bas...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2004-01-01
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| Series: | Plant Production Science |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1626/pps.7.129 |
| _version_ | 1818519613483253760 |
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| author | Tetsuji Oya Alexandre Lima Nepomuceno Norman Neumaier José Renato Bouças Farias Satoshi Tobita Osamu Ito |
| author_facet | Tetsuji Oya Alexandre Lima Nepomuceno Norman Neumaier José Renato Bouças Farias Satoshi Tobita Osamu Ito |
| author_sort | Tetsuji Oya |
| collection | DOAJ |
| description | Drought is one of the major constraints for soybean production in Brazil. Seed yield of ten Brazilian soybean cultivarssheltered from rain (drought stress) for one month after the first flowering was examined over two growing seasons in the field in Londrina, Brazil. The drought tolerance on the basis of seed yield varied with the cultivar, and the yield ranking among cultivars was nearly the same across two years. In cultivars with higher drought tolerance, crop growth rate (CGR)during the drought stress period was higher than in other cultivars. They also maintained a larger leaf area during the stress period. Although reproductive development was retarded by the drought stress, it tended to be retarded less in drought-tolerant cultivars. The information obtained in this research may be useful for breeding drought-tolerant cultivars or selecting diverse germplasms of soybean cultivars. |
| first_indexed | 2024-12-11T01:26:30Z |
| format | Article |
| id | doaj.art-9201b210c1b0444cb4a8dd5540e11f24 |
| institution | Directory Open Access Journal |
| issn | 1343-943X 1349-1008 |
| language | English |
| last_indexed | 2024-12-11T01:26:30Z |
| publishDate | 2004-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Plant Production Science |
| spelling | doaj.art-9201b210c1b0444cb4a8dd5540e11f242022-12-22T01:25:30ZengTaylor & Francis GroupPlant Production Science1343-943X1349-10082004-01-017212913710.1626/pps.7.12911644615Drought Tolerance Characteristics of Brazilian Soybean Cultivars— Evaluation and characterization of drought tolerance of various Brazilian soybean cultivars in the field —Tetsuji Oya0Alexandre Lima Nepomuceno1Norman Neumaier2José Renato Bouças Farias3Satoshi Tobita4Osamu Ito5Japan International Research Center for Agricultural SciencesNational Soybean Research Center of Brazilian Agricultural Research CorporationNational Soybean Research Center of Brazilian Agricultural Research CorporationNational Soybean Research Center of Brazilian Agricultural Research CorporationJapan International Research Center for Agricultural SciencesJapan International Research Center for Agricultural SciencesDrought is one of the major constraints for soybean production in Brazil. Seed yield of ten Brazilian soybean cultivarssheltered from rain (drought stress) for one month after the first flowering was examined over two growing seasons in the field in Londrina, Brazil. The drought tolerance on the basis of seed yield varied with the cultivar, and the yield ranking among cultivars was nearly the same across two years. In cultivars with higher drought tolerance, crop growth rate (CGR)during the drought stress period was higher than in other cultivars. They also maintained a larger leaf area during the stress period. Although reproductive development was retarded by the drought stress, it tended to be retarded less in drought-tolerant cultivars. The information obtained in this research may be useful for breeding drought-tolerant cultivars or selecting diverse germplasms of soybean cultivars.http://dx.doi.org/10.1626/pps.7.129BrazilCrop growth rateCultivar differenceDrought toleranceHarvest indexRain shelterSeed yieldSoybean |
| spellingShingle | Tetsuji Oya Alexandre Lima Nepomuceno Norman Neumaier José Renato Bouças Farias Satoshi Tobita Osamu Ito Drought Tolerance Characteristics of Brazilian Soybean Cultivars— Evaluation and characterization of drought tolerance of various Brazilian soybean cultivars in the field — Plant Production Science Brazil Crop growth rate Cultivar difference Drought tolerance Harvest index Rain shelter Seed yield Soybean |
| title | Drought Tolerance Characteristics of Brazilian Soybean Cultivars— Evaluation and characterization of drought tolerance of various Brazilian soybean cultivars in the field — |
| title_full | Drought Tolerance Characteristics of Brazilian Soybean Cultivars— Evaluation and characterization of drought tolerance of various Brazilian soybean cultivars in the field — |
| title_fullStr | Drought Tolerance Characteristics of Brazilian Soybean Cultivars— Evaluation and characterization of drought tolerance of various Brazilian soybean cultivars in the field — |
| title_full_unstemmed | Drought Tolerance Characteristics of Brazilian Soybean Cultivars— Evaluation and characterization of drought tolerance of various Brazilian soybean cultivars in the field — |
| title_short | Drought Tolerance Characteristics of Brazilian Soybean Cultivars— Evaluation and characterization of drought tolerance of various Brazilian soybean cultivars in the field — |
| title_sort | drought tolerance characteristics of brazilian soybean cultivars evaluation and characterization of drought tolerance of various brazilian soybean cultivars in the field |
| topic | Brazil Crop growth rate Cultivar difference Drought tolerance Harvest index Rain shelter Seed yield Soybean |
| url | http://dx.doi.org/10.1626/pps.7.129 |
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