Photosynthesis and growth response of maize (Zea mays L.) hybrids exposed to cadmium stress

2016 ◽  
Vol 24 (6) ◽  
pp. 5521-5529 ◽  
Author(s):  
Tasneem Akhtar ◽  
Muhammad Zia-ur-Rehman ◽  
Asif Naeem ◽  
Rab Nawaz ◽  
Shafaqat Ali ◽  
...  
Keyword(s):  
Zea Mays ◽  
Growth Response ◽  
Zea Mays L ◽  
Cadmium Stress

scholarly journals Early corn seedling growth response to phenolic acids

1997 ◽  
Vol 77 (3) ◽  
pp. 391-393 ◽  
Author(s):  
K. J. Janovicek ◽  
T. J. Vyn ◽  
R. P. Voroney ◽  
O. B. Allen
Keyword(s):  
Zea Mays ◽  
Growth Inhibition ◽  
Phenolic Acids ◽  
Phenolic Acid ◽  
Growth Response ◽  
Zea Mays L ◽  
Radicle Growth ◽  
Corn Seedling ◽  
Hydroxybenzoic Acids ◽  
Ferulic Acids

Phenolic (vanillic, p-coumaric, ferulic and p-hydroxybenzoic) acids inhibited corn seedling radicle elongation in bioassay studies, especially at solution concentrations exceeding 1.0 × 10−4M. Radicle growth inhibition among hybrids was different when p-coumaric or ferulic acids were assayed, suggesting that corn sensitivity to phenolic acid phytotoxicity may be hybrid dependent. Key words: Allelopathy, phenolic acids, radicle growth inhibition, corn, Zea mays L., hybrid response

scholarly journals Biochemical and hormonal changes associated with root growth restriction under cadmium stress during maize (Zea mays L.) pre-emergence

2021 ◽  
Author(s):  
Carolina L. Matayoshi ◽  
Liliana B. Pena ◽  
Vicent Arbona ◽  
Aurelio Gómez-Cadenas ◽  
Susana M. Gallego
Keyword(s):  
Zea Mays ◽  
Root Growth ◽  
Zea Mays L ◽  
Cadmium Stress ◽  
Growth Restriction ◽  
Hormonal Changes

scholarly journals Evaluation of dissipation mechanisms for pyrene by maize (Zea Mays L.) in cadmium co-contaminated soil

2013 ◽  
Vol 11 (4) ◽  
pp. 487-496
Keyword(s):  
Zea Mays ◽  
Contaminated Soil ◽  
Growth Response ◽  
Zea Mays L ◽  
Plant Root ◽  
Complex Problem ◽  
Soil P ◽  
Metal Pollutants ◽  
Rhizosphere Microorganisms ◽  
Unplanted Soil

Sites co-contaminated with organic and metal pollutants are common and considered to be a more complex problem, as the two components often have a synergistic effect on cytotoxicity. This study investigated the dissipation mechnisms for pyrene in cadmium co-contaminated soil in which maize (ZEA MAYS L.) was grown in a greenhouse experiment. Results showed the growth response of maize may be affected by the co-contamination due to the interaction between the heavy metal and organic pollutants. Pyrene in both planted and unplanted soil diminished significantly at the end of 60-day culture, accounting for 21-31% of the initial extractable concentration in unplanted soil and 12-27% in planted soil, which indicated that the dissipation of pyrene was enhanced by the presence of vegetation. Although the presence of cadmium stimulated the accumulation of pyrene in roots and shoots of maize, contributions of plant off-take of pyrene to the total remediation enhancement in the presence of vegetation was less than 0.3%. A significant positive correlation was observed between soil enzyme activities (dehydrogenase, polyphenol oxidase) and the removal ratio of pyrene. Plant root exudates appear to promote the number of rhizosphere microorganisms and enzyme activity, thereby improving biodegradation of pyrene.

MAGNETISM AND PLANT GROWTH: III. EFFECT ON GERMINATION AND EARLY GROWTH OF CORN AND BEANS

1965 ◽  
Vol 45 (6) ◽  
pp. 549-555 ◽  
Author(s):  
U. J. Pittman
Keyword(s):  
Magnetic Field ◽  
Zea Mays ◽  
Phaseolus Vulgaris ◽  
Plant Growth ◽  
Seedling Growth ◽  
Growth Response ◽  
Zea Mays L ◽  
Early Growth ◽  
Phaseolus Vulgaris L

Speed of germination and seedling growth of corn Zea mays L. and beans Phaseolus vulgaris L. were affected by pregermination exposure of the dry seed to an introduced magnetic field. Seed orientation and duration of pregermination exposure as well as temperature and seed orientation during germination affected total visible seedling growth. An endogenous, non-circadian growth response is indicated.

scholarly journals Physiological responses of maize to elemental sulphur and cadmium stress

2011 ◽  
Vol 52 (No. 11) ◽  
pp. 523-529 ◽  
Author(s):  
Y. Cui ◽  
Q. Wang
Keyword(s):  
Zea Mays ◽  
Physiological Response ◽  
Zea Mays L ◽  
Physiological Responses ◽  
Cadmium Stress ◽  
Crop Growth ◽  
Elemental Sulphur ◽  
Shoot Biomass

The physiological response to application of elemental sulphur (S) and cadmium (Cd) of maize (Zea mays L.) grown for 60 days in pot soil was studied. The S was added into the soil with 2 rates (0 and 50 mmol/kg) and Cd was added in solution in 4 rates (0, 20, 50, 100 mg/kg). All the S and Cd were added before planting. Shoot biomass decreased with the application of Cd to the soil whether S was applied or not. The application of S and Cd to soil led to an increasing accumulation of Cd in the shoots of maize. The concentration of chlorophyll was reduced significantly in Cd-treated plants with or without supplementary S. The content of malondialdehyde (MDA) was increased significantly in treatments with S and Cd, compared to the control. The activity of peroxidases (POD) was increased but catalase (CAT) was decreased in plants treated with Cd, again with or without S, in comparison with control. POD and CAT activities decreased in all the Cd treated plants with S, as compared to the plants without S. The results suggest that Cd reduces the crop growth, concentration of chlorophyll and activity of CAT, but increases the content of MDA and activity of POD. S supplies decrease the content of MDA, activities of POD and CAT, as compared to zero S supplies at the same rate of Cd application.

Growth response of Zea mays L. in pyrene–copper co-contaminated soil and the fate of pollutants

2008 ◽  
Vol 150 (3) ◽  
pp. 515-521 ◽  
Author(s):  
Qi Lin ◽  
Kai-Li Shen ◽  
Hong-Mei Zhao ◽  
Weng-Hong Li
Keyword(s):  
Zea Mays ◽  
Contaminated Soil ◽  
Growth Response ◽  
Zea Mays L
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