Diurnal temperature amplitude alters physiological and growth response of maize (Zea mays L.) during the vegetative stage

2016 ◽  
Vol 130 ◽  
pp. 113-121 ◽  
Author(s):  
V.S. John Sunoj ◽  
Kyle J. Shroyer ◽  
S.V. Krishna Jagadish ◽  
P.V. Vara Prasad
Keyword(s):  
Zea Mays ◽  
Growth Response ◽  
Zea Mays L ◽  
Vegetative Stage ◽  
Diurnal Temperature ◽  
Temperature Amplitude

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

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 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.

Evaluation of waterlogging tolerance with the degree of foliar senescence at early vegetative stage of maize (Zea mays L.)

2016 ◽  
Vol 19 (5) ◽  
pp. 393-399 ◽  
Author(s):  
Seonghyu Shin ◽  
Seong-Guk Kim ◽  
Gun-Ho Jung ◽  
Chung-Guk Kim ◽  
Beom-Young Son ◽  
...  
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Vegetative Stage ◽  
Waterlogging Tolerance ◽  
Foliar Senescence

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

scholarly journals MANAGEMENT OF Urochloa ruziziensis WITH GLYPHOSATE IN INTEGRATED SYSTEM WITH GLYPHOSATE-RESISTANT CORN

2019 ◽  
Vol 6 (4) ◽  
pp. 63-68
Author(s):  
Gilmarcos De Carvalho Corrêa ◽  
Cássio Augusto Pinto ◽  
Evandro Macedo De Freitas ◽  
Luís Carlos Cunha Jr. ◽  
Cristiane Maria Ascari Morgado
Keyword(s):  
Zea Mays ◽  
Experimental Design ◽  
Standard Treatment ◽  
Zea Mays L ◽  
Integrated System ◽  
Vegetative Stage ◽  
Experimental Area ◽  
Excessive Competition ◽  
Glyphosate Herbicide ◽  
Livestock System

This study aimed to evaluate the efficiency of the glyphosate doses in the suppression of Urochloa ruziziensis, to avoid the excessive competition of forage, intercropped with corn in an integrated crop-livestock system. The experiment was conducted in the experimental area of the Escola de Agronomia, of the Universidade Federal de Goiás with glyphosate-resistant corn (Zea mays L.) and Urochloa ruziziensis. The experimental design was randomized blocks with five treatments and four replications in a factorial scheme, with five herbicide doses x three evaluation periods. Treatments were control - non-sprayed, glyphosate herbicide at doses of 72, 144 and 288 g a.e. ha-1, and standard treatment of 8 g a.i. ha-1 of the nicosulfuron herbicide. The sowing was carried out in alternate rows of corn and forage with a spacing of 0.45 m between rows. The treatments were applied with corn at V6 vegetative stage and forage with 4-6 tillers, with evaluations at 7, 14, and 21 days after application. The dose of 72 g a.e. ha-1 of glyphosate, had no efficiency in forage suppression. The dose of 144 g a.e. ha-1 of glyphosate equaled the dose of 8 g a.i. ha-1 of nicosulfuron, which is the standard treatment in this intercropping system. Glyphosate at the dose of 288 g a.e. ha-1 caused the forage's death. 

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