豇豆[L];[Walp.])植物在温室和田间表现出不同的硫介导干旱驯化

IF 2.3 4区 农林科学 Q1 AGRONOMY Archives of Agronomy and Soil Science Pub Date : 2023-09-10 DOI:10.1080/03650340.2023.2253162
Alana Cavalcante Silva, Flavia Marques de Brito, Amanda Soares Santos, Ramilos Rodrigues de Brito, Julian Junio de Jesus Lacerda, Francisco de Alcantara Neto, José Helio Costa, Stelamaris de Oliveira Paula-Marinho, Raphael Reis da Silva, Rafael de Souza Miranda
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引用次数: 0

摘要

水分限制是导致农业产量严重损失的植物的关键环境条件。我们的假设是,在半干旱条件下,硫(S)的补充减轻了干旱损害,提高了豇豆品种的生产性能。在温室和田间进行了两个平行试验,选取两个豇豆品种(西雀-西雀和诺瓦拉),在两种水分制度(对照和干旱)和三种S水平(S-40、S-80和S-120 kg ha -1)下进行。干旱对温室豇豆生长的制约作用大于田间豇豆。温室干旱胁迫下,两种豇豆品种的净光合作用、气孔导度和干质量均显著低于对照。温室内补充S-80和田间补充S-120对胁迫下novaera植株生长恢复的促进作用与S-40胁迫下相近,表现接近于井灌植株。补充s胁迫的Novaera植株的优异表现与水分保持机制的激活有关,可能是渗透调节,证明了水分含量、气孔导度和蒸腾的增加。这些生理调节使植物在干旱条件下保持较高的净光合作用和生长。综上所述,添加S能有效缓解Novaera品种的干旱危害,为在缺水环境下栽培豇豆提供了潜力。
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Cowpea (Vigna unguiculata [L.] Walp.) plants display contrasting sulfur-mediated drought acclimation in greenhouse and field
Water restriction is a critical environmental condition for plants capable of promoting severe losses in agricultural yield. Our hypothesis was that sulfur (S) supplementation alleviates drought damage for enhanced performance of cowpea cultivars under semiarid conditions. Two parallel experiments were conducted in greenhouse and field, using two cowpea cultivars (Xique-xique and Novaera) subjected to two water regimes (control and drought) and three S levels (S-40, S-80 and S-120 kg ha−1). Drought had a more restrictive impact on cowpea in greenhouse than in field. Drought-stressed plants in greenhouse showed drastic reductions in net photosynthesis, stomatal conductance and dry mass, for both cowpea cultivars as compared to controls. S-80 supplementation in greenhouse and S-120 in field promoted growth recovery of stressed-Novaera plants as related to S-40 stressed ones, exhibiting a performance closer to that of well-irrigated plants. Superior performance of S-supplemented stressed Novaera plants was associated with activation of mechanisms for water retention, likely osmotic adjustment, evidenced by increased water content, stomatal conductance and transpiration. These physiological adjustments allowed plants to maintain elevated net photosynthesis and growth under drought. In conclusion, S supplementation proves effective in mitigating drought damage in Novaera cultivar, offering potential for cultivating cowpea plants in water-scarce environments.
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来源期刊
CiteScore
5.50
自引率
4.20%
发文量
107
期刊介绍: rchives of Agronomy and Soil Science is a well-established journal that has been in publication for over fifty years. The Journal publishes papers over the entire range of agronomy and soil science. Manuscripts involved in developing and testing hypotheses to understand casual relationships in the following areas: plant nutrition fertilizers manure soil tillage soil biotechnology and ecophysiology amelioration irrigation and drainage plant production on arable and grass land agroclimatology landscape formation and environmental management in rural regions management of natural and created wetland ecosystems bio-geochemical processes soil-plant-microbe interactions and rhizosphere processes soil morphology, classification, monitoring, heterogeneity and scales reuse of waste waters and biosolids of agri-industrial origin in soil are especially encouraged. As well as original contributions, the Journal also publishes current reviews.
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