Growth and photosynthetic capacity of the peanut cultivar BR 1 under saline conditions

被引：21

作者：

Graciano, Erika S. A. ^{[1
]}

Nogueira, Rejane J. M. C. ^{[2
]}

Lima, Danubia R. M. ^{[1
]}

Pacheco, Cinthya M. ^{[3
]}

Santos, Roseane C. ^{[4
]}

机构：

[1] Univ Fed Rural Pernambuco, Programa Posgrad Ciencia Solo, BR-52171900 Recife, PE, Brazil

[2] Univ Fed Rural Pernambuco, Dept Biol, BR-52171900 Recife, PE, Brazil

[3] Univ Fed Pernambuco, Programa Posgrad Genet, BR-50670901 Recife, PE, Brazil

[4] Embrapa Algodao, BR-58107720 Campina Grande, PB, Brazil

来源：

REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL | 2011年 / 15卷 / 08期

关键词：

Arachis hypogaea; saline stress; growing; photosynthesis; GENOTYPES;

D O I：

10.1590/S1415-43662011000800005

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The objective of this study was to evaluate the growth and photosynthetic capacity of BR 1 peanut cultivar submitted to salinity. The experiment was conducted in greenhouse, using a randomized design, with four levels of salinity, expressed in electrical conductivity of solution (1.0, 3.5, 6.0 and 8.5 dS m(-1)), with six replications. BR 1 showed physiological mechanisms capable of ensuring their growth in environments prone to salinity. The growth of root system and stability of photosynthetic pigments were the variables related to tolerance to salinity. However, the cultivar is sensitive to salinity when the electrical conductivity is 8.5 dS m(-1), affecting the stomatal conductance and photosynthetic assimilation of CO2. BR1 showed resistance to saline environments.

引用

页码：794 / 800

页数：7

共 24 条

[1]

Araujo A. C., 2008, CIENC AGROTEC, V32, P1467

[2]

Azevedo Neto A. D., 2000, REV BRASILEIRA ENGEN, V4, P159

[3] Physiological and biochemical responses of peanut genotypes to water deficit [J].

Azevedo Neto, Andre D. ;

Nogueira, Rejane J. M. C. ;

Melo Filho, Pericles A. ;

Santos, Roseane C. .

JOURNAL OF PLANT INTERACTIONS, 2010, 5 (01) :1-10

[4]

Benincasa M.M.P., 2003, Analise de crescimento de plantas: nocoes basicas

[5]

Correia Karina G., 2005, Rev. bras. eng. agríc. ambient., V9, P81, DOI 10.1590/1807-1929/agriambi.v9nsupp81-85

[6]

Correia KG, 2009, REV CIENC AGRON, V40, P514

[7]

Correia KG, 2004, REV BIOL CIENCIA TER, V4

[8] Physiological responses to salt stress in young umbu plants [J].

da Silva, Elizarnar Ciriaco ;

Nogueira, Rejane Jurerna Mansur Custodio ;

de Araujo, Francisco Pinheiro ;

de Melo, Natoniel Franklin ;

Neto, Andre Dias de Azevedo .

ENVIRONMENTAL AND EXPERIMENTAL BOTANY, 2008, 63 (1-3) :147-157

[9] Photosynthetic capacity of peanut genotypes under natural and controlled environment [J].

Erismann, Norma de Magalhaes ;

Machado, Eduardo Caruso ;

de Godoy, Ignacio Jose .

PESQUISA AGROPECUARIA BRASILEIRA, 2006, 41 (07) :1099-1108

[10]

Garcia G. O., 2010, ENGENHARIA AGR, V18, P330

← 1 2 3 →