Differential adaptation of two varieties of common bean to abiotic stress

Lizana, X. Carolina; Wentworth, Mark; Martínez, Juan-Pablo; Villegas, Daniel; Meneses, Rodrigo; Murchie, Erik H.; Pastenes, Claudio; Lercari, Bartolomeo; Vernieri, P.; Horton, Peter; Pinto, Manuel

doi:10.1093/jxb/erj062

Cited by 133 publications

(103 citation statements)

References 22 publications

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“…Segundo Flexas et al (2006) e Lizana et al (2006), quando o estresse hídrico é imposto gradualmente, durante semanas, a planta pode aclimatar-se a este fator limitante, ao envolver genes de expressão e modificações fisiológicas e morfológicas, o que leva à compensação homeostática para os primeiros efeitos negativos do estresse hídrico. relataram que alterações metabólicas na planta ocorrem antes das alterações do estado hídrico.…”

Section: Resultsunclassified

Respostas fisiológicas de cultivares de soja à adubação potássica sob diferentes regimes hídricos

Catuchi

Guidorizzi

Guidorizi

et al. 2012

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar a interferência da adubação potássica em parâmetros fisiológicos de duas cultivares de soja, sob diferentes regimes hídricos. O experimento foi realizado em condições de casa de vegetação, em Presidente Prudente, SP. Utilizou-se o delineamento experimental inteiramente casualizado, em arranjo fatorial 2x2x3, com as cultivares BR-16 (tolerante ao estresse hídrico) e Embrapa 48 (suscetível), regimes hídricos com reposição diária de água de 100% (controle) e de 40% da capacidade de campo, e três níveis de suplementação com K (0, 90 e 180 mg dm -3). Duas semanas após a imposição da restrição hídrica, foram avaliados: conteúdo relativo de água, potencial fotossintético e rendimento de biomassa. As plantas que se desenvolveram sob restrição hídrica tiveram sua capacidade fotossintética reavaliada após 12 horas de reidratação. Em condições de restrição hídrica, a adubação potássica não interferiu significativamente nos parâmetros fisiológicos e de crescimento avaliados. A suplementação com potássio promoveu melhor eficiência dos parâmetros fisiológicos, no regime sem deficiência hídrica, nas duas cultivares, e as principais variáveis influenciadas pelo nutriente foram: condutância estomática, taxa máxima de carboxilação da Rubisco e assimilação máxima de CO 2 . A suplementação com K melhora a recuperação fotossintética das plantas após a reidratação, especialmente na cultivar Embrapa 48.Termos para indexação: Glycine max, biomassa, deficit hídrico, fotossíntese, nutrição. Physiological responses of soybean cultivars to potassium fertilization under different water regimesAbstract -The objective of this work was to evaluate the interference of potassium fertilization on the physiological parameters of soybean cultivars under different water regimes. The experiment was carried out in greenhouse at Presidente Prudente, SP, Brazil. The experimental design was a completely randomized block in a 2x2x3 factorial arrangement, with the soybean cultivars BR-16 (tolerante ...) and Embrapa 48 (suscept...), water regimes with daily replacements of 100% (control) and 40% of the field capacity, and three levels of K supplementation (0, 90, and 180 mg dm -3). Relative water content, photosynthetic potential, and biomass yield were evaluated two weeks after the initiation of water restriction. Plants grown under water restriction had their photosynthetic potential reevaluated after 12 h of rehydration. Under water restriction conditions, potassium fertilization did not significantly affect the assessed growth and physiological parameters. Supplementation with potassium promoted a better efficiency of the physiological parameters, in water deficit control, in both cultivars, and the main variables influenced by the nutrient were: stomatal conductance, maximum rate of Rubisco carboxylation, and maximum CO 2 assimilation. Potassium supplementation improves photosynthetic recovery of plants after rehydration, especially in the Embrapa 48 cultivar.Index terms: Glycine max, biomass, water deficit...

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Section: Resultsunclassified

Respostas fisiológicas de cultivares de soja à adubação potássica sob diferentes regimes hídricos

Catuchi

Guidorizzi

Guidorizi

et al. 2012

Pesq. agropec. bras.

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“…The accumulation of proline in many plants represents a general response to drought stress as was reported also for Citrus trees (Syvertsen and Smith, 1983). A tolerant genotype of the common bean (Phaseolus vulgaris L.) showed a great deal of plasticity at the biochemical and cellular levels when exposed to drought stress, in terms of stomatal conductance, photosynthetic rate, abscisic acid synthesis, and resistance to photoinhibition (Lizana et al, 2006). (Table 3) were associated with the climatic conditions of each year.…”

Section: Leaf Water Potential -Photosynthetic Ratementioning

confidence: 99%

Response of a clingstone peach cultivar to regulated deficit irrigation

Sotiropoulos

Kalfountzos

Aleksiou

et al. 2010

Sci. agric. (Piracicaba, Braz.)

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Regulated deficit irrigation (RDI) involves inducing water stress during specific fruit growth phases by irrigating at less than full evapotranspiration. The objectives of this research were to study the effects of RDI perfomed at stage II of fruit growth and postharvest, on productivity of clingstone peaches, fruit quality as well as photosynthetic rate and midday leaf water potential. The research was conducted in a commercial clingstone peach (Prunus persica L. Batch cv. A-37) orchard in Greece. Trees were irrigated by means of microsprinklers and their frequency was determined using local meteorological station data and the FAO 56 Pennman-Monteith method. Photosynthetic rate was measured by a portable infrared gas analyzer. Midday leaf water potential was measured by the pressure chamber technique. During the years 2005 and 2006, the treatment RDII with irrigation applied at growth stage II of the peach tree did not affect productivity, fresh and dry mass of fruits. RDII reduced preharvest fruit drop in comparison to the control. RDII as well as the combined treatment RDII plus RDIP with irrigation applied at postharvest, at both years reduced shoot length of the vigorous shoots inside the canopy. RDII in comparison to the control increased the soluble solids content of the fruits and the ratio soluble solids/acidity. However it did not affect fruit acidity and fruit firmness. RDII as well as RDII plus RDIP in 2006 increased 'double' fruits and fruits with open cavity in comparison to the control and RDIP. Water savings were considerable and associated with the climatic conditions of each year. Key words: fruit drop, leaf water potential, photosynthetic rate, water savings Resposta de um cultivar de pêssego com caroço aderente à irrigação por défice regulado RESUMO: A irrigação por défice regulado (RDI) envolve a indução de défice de água durante fases específicas do crescimento das frutas, irrigando a taxas menores que a evapotranspiração. Os objetivos desse estudo foram verificar os efeitos da RDI no estágio II do crescimento das frutas e no periodo pós-colheita, avaliando a produtividade de pêssegos, a qualidade dos frutos, bem como a taxa fotossintética e o potencial da água na folha. A pesquisa foi desenvolvida em um pomar comercial de pêssegos com caroço aderente (Prunus persica L. Batch cv. A-37) da Grécia. As árvores foram irrigadas por meio de microaspersores e sua frequência foi determinada por meio de dados meteorológicos obtidos em estação automática e o método FAO 56 Pennman-Monteith para determinação de evepotranspiração. A taxa de fotossíntese foi medida por analisador de gás na faixa do infravermelho. O potencial da água na folha foi medido ao meio-dia usando a técnica da câmara de pressão.

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“…In this step, shortage of water prevented the evolution of inflorescence and decreased the number of young pods and seeds (Singh, 2007;Lizana et al, 2006). High level of Nitrogen had no effect on number of pods.…”

Section: Discussionmentioning

confidence: 98%

Effects of Irrigation and Nitrogen on Yield and Water Productivity in Common Bean (Phaseolus Vulgaris L.) and Cowpea (Vigna Unguiculata L.) in North of Iran

Nouralinezhad¹

2018

Appl. Ecol. Env. Res.

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Nouralinezhad et al.: Effects of irrigation and nitrogen on yield and water productivity in common bean (Phaseolus vulgaris L.) and cowpea (Vigna unguiculata L.) Abstract. Water is known as a critical and rare source that humans and ecological systems depend on.With growing population and developing technologies in many countries, availability to this critical source has been decreased. This research was conducted in a split plot experiment in a randomized complete block design with 3 replications in Iran (the north of Iran, Astaneh-ye-Ashrafiyeh). The main treatments were irrigation with 40, 60, 80 and 100% water requirement using water balance and direct method and the second treatments were 0 and 30, 60 and 90 kg N ha -1, and two bean cultivars were tested (local Dehsari and Cowpea). Seed yield in 2016 and 2017, in the case of irrigation with100% water requirement and 60 kg N ha -1 was higher in common bean cultivar than in Cowpea and yields were 3486 and 3646 kg ha -1 , respectively. The highest water use productivity in seed yield in 2016 and 2017 was in common bean cultivar, and in the case of irrigation with 100% water requirement and 60 kg N ha -1 fertilizer added, levels were 0.70 and 0.69 kg m -3 , respectively.

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Differential adaptation of two varieties of common bean to abiotic stress

Cited by 133 publications

References 22 publications

Respostas fisiológicas de cultivares de soja à adubação potássica sob diferentes regimes hídricos

Respostas fisiológicas de cultivares de soja à adubação potássica sob diferentes regimes hídricos

Response of a clingstone peach cultivar to regulated deficit irrigation

Effects of Irrigation and Nitrogen on Yield and Water Productivity in Common Bean (Phaseolus Vulgaris L.) and Cowpea (Vigna Unguiculata L.) in North of Iran

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