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| SANTOS,CLAUDIANA M. DOS; ENDRES,LAURÍCIO; FERREIRA,VILMA M.; SILVA,JOSÉ V.; ROLIM,EDUARDO V.; WANDERLEY FILHO,HUMBERTO C.L.. |
| ABSTRACT Castor bean is one of the crops with potential to provide raw material for production of oils for biodiesel. This species possess adaptive mechanisms for maintaining the water status when subjected to drought stress. A better understanding these mechanisms under field conditions can unravel the survival strategies used by this species. This study aimed to compare the physiological adaptations of Ricinus communis (L.) in two regions with different climates, the semi-arid and semi-humid subject to water stress. The plants showed greater vapor pressure deficit during the driest hours of the day, which contributed to higher values of the leaf temperature and leaf transpiration, however, the VPD(leaf-air) had the greatest effect on plants in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ricinus communis L.; Water deficit; Stomatal control; Photoinhibition.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000603015 |
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| Ye,Zihong; Cui,Haifeng; An,Xinxin; Yu,Xiaoping. |
| ABSTRACT: The tumescent stems of Zizania latifolia are consumed as vegetable in southern and eastern Asia. This study aimed to compare photosynthesis and chilling tolerance parameters between two well-known Zizania latifolia cultivars: Longjiao 2 and Zhejiao 911, which are chilling tolerant and sensitive, respectively. We found that severe cold stress induced photosynthesis inhibition (5°C) resulted from non-stomatal factors. However, net photosynthetic rate (Pn), stomatal conductance (Gs) and transpiration rate (Tr) of the cultivar Longjiao 2 were higher than that of Zhejiao 911 with more gradual variations. Six parameters of chlorophyll fluorescence including latent activity of PSII (Fv/F0), efficiency of primary photochemistry (Fv/Fm), photochemical... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Longjiao 2; Zhejiao 911; Cold stress; Photosystem; Photoinhibition.. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362016000100039 |
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