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Caracterización fenotípica por resistencia a sequía terminal de germoplasma de frijol común = Phenotypic characterization of common bean germplasm for resistance to terminal drought

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Title Caracterización fenotípica por resistencia a sequía terminal de germoplasma de frijol común = Phenotypic characterization of common bean germplasm for resistance to terminal drought
 
Creator Chaves-Barrantes, Néstor Felipe
Polanía Perdomo, José A.
Muñoz Perea, Carlos Germán
Rao, Idupulapati M.
Beebe, Stephen E.
 
Subject phaseolus vulgaris
biomass
biomasa
harvest index
índice de cosecha
climate change
cambio climático
drought stress
estrés de sequia
 
Description Terminal drought is a worldwide constraint to common bean production and its negative effects will be increased by climate change. The objective of this research was to characterize phenotypically advanced lines and commercial cultivars of common bean for their resistance to terminal drought stress. Field trials were conducted during 2012 and 2013 at Centro Internacional de Agricultura Tropical (CIAT), Palmira, Colombia. A 4x4 partially balanced lattice design with four replicates was used and, evaluated under irrigation and terminal drought. To achieve the terminal drought condition, irrigation was suspended at 22-23 days after planting. Terminal drought reduced mean grain yield by 68%. Lines SEN 56, BFS 29, NCB 226 and SER 16 showed high grain yield in both irrigated (3617-3836 kg/ ha) and terminal drought (1232-1447 kg/ha) conditions, while RCB 593 and G 40001 showed high grain yield in drought (>1270 kg/ha) and similar to checks in irrigated condition. The most resistant lines showed lower drought susceptibility index (0,88 - 1,00), earlier maturity (56 - 60 dds), superior geometric mean (1931 - 2311 kg/ha), and higher number of grains/m2, (673 - 1250). Drought resistant lines produced at least 15% and 50% more grain yield than EAP 9510-77, commercial check for Central America, in irrigated and drought condition, respectively. In addition, they were also superior to other commercial checks such as DOR 390 and Bribri.
 
Date 2018-01
2018-01-10T18:36:27Z
2018-01-10T18:36:27Z
 
Type Journal Article
 
Identifier Chaves-Barrantes, Néstor Felipe; Polanía, José A.; Muñoz-Perea, Carlos Germán; Rao, Idupulapati M.; Beebe, Stephen E.. 2018. Caracterización fenotípica por resistencia a sequía terminal de germoplasma de frijol común = Phenotypic characterization of common bean germplasm for resistance to terminal drought. Agronomia Mesoamericana . 29(1): 1-17.
2215-3608
https://hdl.handle.net/10568/89976
https://revistas.ucr.ac.cr/index.php/agromeso/article/view/27618
https://doi.org/10.15517/ma.v29i1.27618
 
Language en
 
Rights Open Access
 
Format 29(1): 1-17
 
Publisher Universidad de Costa Rica - Editorial
 
Source Agronomia Mesoamericana