Polyamines in Helianthus annuus L. during Germination under Salt Stress

1997 ◽  
Vol 16 (4) ◽  
pp. 205-211 ◽  
Author(s):  
M. P. Benavides ◽  
G. Aizencang ◽  
M. L. Tomaro
Keyword(s):  
Salt Stress ◽  
Helianthus Annuus ◽  
Helianthus Annuus L

scholarly journals Determination of Growth Stage-Specific Crop Coefficients (Kc) of Sunflowers (Helianthus annuus L.) under Salt Stress

Water ◽  
2017 ◽  
Vol 9 (3) ◽  
pp. 215 ◽  
Author(s):  
Minghai Hong ◽  
Wenzhi Zeng ◽  
Tao Ma ◽  
Guoqing Lei ◽  
Yuanyuan Zha ◽  
...  
Keyword(s):  
Salt Stress ◽  
Helianthus Annuus ◽  
Growth Stage ◽  
Helianthus Annuus L ◽  
Crop Coefficients

scholarly journals IRRIGAÇÃO COM ÁGUA SALINA NA CULTURA DO GIRASSOL (Helianthus Annuus L.) EM SOLO COM BIOFERTILIZANTE BOVINO

Irriga ◽  
2015 ◽  
Vol 20 (4) ◽  
pp. 680-693 ◽  
Author(s):  
Krishna Ribeiro Gomes ◽  
Geocleber Gomes de Sousa ◽  
Francisco Aldiel Lima ◽  
Thales Vinicius de Araújo Viana ◽  
Benito Moreira de Azevedo ◽  
...  
Keyword(s):  
Salt Stress ◽  
Helianthus Annuus ◽  
Leaf Area ◽  
Dry Matter ◽  
Stem Diameter ◽  
Initial Growth ◽  
Helianthus Annuus L ◽  
La Mancha ◽  
Number Of Leaves ◽  
E Mail

IRRIGAÇÃO COM ÁGUA SALINA NA CULTURA DO GIRASSOL (Helianthus Annuus L.) EM SOLO COM BIOFERTILIZANTE BOVINO  KRISHNA RIBEIRO GOMES1; GEOCLEBER GOMES DE SOUSA2; FRANCISCO ALDIEL LIMA3; THALES VINICIUS DE ARAÚJO VIANA4; BENITO MOREIRA DE AZEVEDO4 E GIOVANA LOPES DA SILVA6 1 Engenheira Agrônoma, Doutoranda, Escuela Técnica Superior de Ingenieros Agrónomos y de Montes, Universidad de Castilla-La Mancha, Ctra. de las Peñas, km 3,2, [email protected] Engenheiro Agrônomo, Doutor em Engenharia Agrícola, Professor Adjunto I, Instituto de Desenvolvimento Rural, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Redenção, CE, e-mail:[email protected] Engenheiro Agrônomo, Doutorando, Escuela Técnica Superior de Ingenieros Agrónomos y de Montes, Universidad de Castilla-La Mancha, e-mail: [email protected] Engenheiro Agrônomo, Prof. Titular, Departamento de Engenharia Agrícola, Centro de Ciências Agrárias, Universidade Federal do Ceará, e-mail: [email protected]; [email protected] Engenheira Agrônoma, Profa. do curso de Engenharia Ambiental e Sanitária, FANOR, Campus das Dunas, Fortaleza, CE, e-mial: [email protected]  1 RESUMO Este trabalho foi realizado com o objetivo de avaliar o crescimento inicial e as trocas gasosas da cultura do girassol (Helianthus annuus L.) irrigada com diferentes níveis de salinidade em solo com e sem biofertilizante bovino. O experimento foi conduzido na área experimental da Estação Agrometeorológica, UFC, Fortaleza-CE, no período de setembro a novembro de 2012. Os tratamentos foram distribuídos em delineamento inteiramente aleatorizado, em esquema fatorial 5 x 2, com cinco repetições, referente aos valores de cinco condutividades elétricas da água de irrigação: 0,8; 1,5; 3,0; 4,5 e 6,0 dS m-1, em solo sem e com biofertilizante bovino, aplicado de uma única vez, ao nível de 10% do volume do substrato, três dias antes da semeadura. Foram avaliadas as seguintes variáveis: número de folhas, altura de plantas, diâmetro do caule, área foliar, fotossíntese, condutância estomática, temperatura da folha, concentração interna de CO2, transpiração das plantas, matéria seca da parte aérea, da raiz e total. O estresse salino afetou o diâmetro do caule, a área foliar e o número de folhas de plantas do girassol, sendo em menor intensidade no solo com o biofertilizante bovino. O biofertilizante bovino diminuiu os efeitos negativos das concentrações crescentes de sais na água de irrigação na matéria seca da parte aérea, matéria seca da raiz e matéria seca total de plantas de girassol.  Palavras-chave: estresse salino, índices fisiológicos, insumo orgânico  GOMES, K. R., SOUSA, G. G., LIMA, F. A., VIANA, T. V. A., AZEVEDO, B. M., SILVA, G. L.SALINE IRRIGATION OF  SUNFLOWER  (Helianthus Annuus L.) IN SOIL WITH BOVINE BIOFERTILIZER   2 ABSTRACT This study aimed to evaluate  initial growth and gas exchanges of sunflower plants (Helianthus annuus L.) irrigated with different salt concentrations in soil treated with and without bovine biofertilizer.  The experiment was conducted at the experimental area in the  Agrometeorological station, UFC, Fortaleza-CE, from September to November 2012. Treatments were arranged   in a completely  randomized 5 x 2 factorial design, with five replicates referring to  five electrical conductivity values of  irrigated water.:  0.8;1.5;3.0;4.5 and 6.0 dS m-1, in soil with and without bovine biofertilizer. The latter was applied only once, at 10% substrate volume, three days before sowing.  The following parameters were evaluated: number of leaves, plant height, stem diameter , leaf area, photosynthesis, stomatal conductance, leaf temperature, internal CO2 concentration, plant transpiration, shoot,  root and total dry matter. Salt stress affected stem diameter, leaf area and number of leaves of sunflower plants, and in a  lesser degree,  in the  soil with bovine biofertilizer. Bovine biofertilizer also reduced the negative effects of increasing salt concentrations in the irrigation water observed in shoot, root and total dry matter of sunflower plants.   Keywords: salt stress, physiological indices, organic fertilizer. 

Changes in Morphological, Physiological and Chemical Characteristics of Sunflower (Helianthus annuus L.) Genotypes Induced by Salt Stress

2015 ◽  
Vol 4 (4) ◽  
pp. 377-388
Author(s):  
Parveen ◽  
Muhammad Anwar-ul-Haq ◽  
Sajjad Raza ◽  
Ghulam Abbasi ◽  
Ahmad Ali ◽  
...  
Keyword(s):  
Salt Stress ◽  
Helianthus Annuus ◽  
Chemical Characteristics ◽  
Helianthus Annuus L

scholarly journals Defensive Impact of Foliar Applied Potassium Nitrate on Growth Linked with Improved Physiological and Antioxidative Activities in Sunflower (Helianthus annuus L.) Hybrids Grown under Salinity Stress

Agronomy ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2076
Author(s):  
Anisa Aslam ◽  
Shahbaz Khan ◽  
Danish Ibrar ◽  
Sohail Irshad ◽  
Ali Bakhsh ◽  
...  
Keyword(s):  
Salt Stress ◽  
Helianthus Annuus ◽  
Salinity Stress ◽  
Antioxidant Activities ◽  
Potassium Nitrate ◽  
Co2 Assimilation ◽  
Growth And Yield ◽  
Chlorophyll Pigments ◽  
Helianthus Annuus L ◽  
The Impact

Salt stress is recognized to negatively influence the fundamental processes in plants regarding growth and yield. The sunflower (Helianthus annuus L.) is considered an important industrial crop because of the good quality of oil it produces that can be used for cooking purposes. The exogenous application of potassium (K) has been reported to enhance abiotic resistance and increase yield in crops. Here, we explored the impact of foliar-applied K at 500 ppm on the physiological and biochemical traits, antioxidant activities, and growth attributes of sunflower grown under salt stress (140 mM NaCl). The findings indicated that salinity stress adversely affected photosynthesis and various gas exchange characteristics. Foliar applied K markedly improved the stomatal conductance, transpiration rate, water use efficiency, CO2 assimilation rate, total soluble proteins, chlorophyll pigments, and upregulated antioxidant system, which are responsible for the healthy growth of sunflower hybrids grown under salinity stress. The shoot and root lengths, plant fresh and dry weights, and achene weight were significantly increased by K application. Overall, foliar applied K significantly improved all of the aforementioned attributes and can attenuate the deleterious influences of salinity stress in sunflower.

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