An increase in nitrogen content of Setaria italica and Zea mays inoculated with Azospirillum

Israel Nur; Yaacov Okon; Yigal Henis

doi:10.1139/m80-080

An increase in nitrogen content of Setaria italica and Zea mays inoculated with Azospirillum

Canadian Journal of Microbiology ◽

10.1139/m80-080 ◽

1980 ◽

Vol 26 (4) ◽

pp. 482-485 ◽

Cited By ~ 22

Author(s):

Israel Nur ◽

Yaacov Okon ◽

Yigal Henis

Keyword(s):

Zea Mays ◽

Nitrogen Content ◽

Azospirillum Brasilense ◽

Cynodon Dactylon ◽

Field Capacity ◽

Dry Weight ◽

Soil Microflora ◽

Setaria Italica ◽

Natural Soil ◽

Kjeldahl Method

Bacteria belonging to the genus Azospirillum isolated from Cynodon dactylon roots in Israel were compared with Azospirillum brasilense from Brazil and California for their ability to fix nitrogen in association with grasses under greenhouse conditions. The plants were grown in a system which avoided cross inoculation from the inoculated soil to the control, while maintaining the natural soil microflora and humidity level in the soil close to field capacity. The organisms tested significantly increased the dry weight of Zea mays and Setaria italica leaves, the total nitrogen content of these leaves (as measured by the Kjeldahl method), and supported acetylene reduction in intact nonsterile systems as compared with the noninoculated controls. Ethylene production in intact systems could be detected after 6 h and was linear for 72 h, providing a constant soil temperature (28–32 °C) was maintained.

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Increase in Dry Weight and Total Nitrogen Content in Zea mays and Setaria italica Associated with Nitrogen-fixing Azospirillum spp.

PLANT PHYSIOLOGY ◽

10.1104/pp.66.4.746 ◽

1980 ◽

Vol 66 (4) ◽

pp. 746-749 ◽

Cited By ~ 50

Author(s):

Efraim Cohen ◽

Yaacov Okon ◽

Jaime Kigel ◽

Israel Nur ◽

Yigal Henis

Keyword(s):

Zea Mays ◽

Nitrogen Content ◽

Total Nitrogen ◽

Dry Weight ◽

Total Nitrogen Content ◽

Setaria Italica ◽

Nitrogen Fixing

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Effect of inoculation of Zea mays with Azospirillum brasilense strains under temperate conditions

Canadian Journal of Microbiology ◽

10.1139/m81-138 ◽

1981 ◽

Vol 27 (9) ◽

pp. 871-877 ◽

Cited By ~ 39

Author(s):

G. W. O'Hara ◽

M. R. Davey ◽

J. A. Lucas

Keyword(s):

Zea Mays ◽

Nitrogen Content ◽

Acetylene Reduction ◽

Azospirillum Brasilense ◽

Dry Weight ◽

Yield Response ◽

Acetylene Reduction Activity ◽

Reduction Activity ◽

Mutant Strains ◽

Nitrogen Concentrations

Seven strains of Azospirillum brasilense were compared for their effect on the growth of Zea mays grown under temperate conditions in sand–vermiculite pot cultures. Inoculation with all seven strains tested, including Fix− mutant strains, increased dry weight and total nitrogen content of shoots, but nitrogen concentrations were unaffected. Low and variable rates of acetylene reduction activity were observed from excised roots of inoculated plants without preincubation. Estimates of N2-fixing A. brasilense associated with inoculated roots showed differences between strains in establishing themselves in the rhizosphere and endorhizosphere. In some strains enrichment in the endorhizosphere of roots occurred following inoculation, but the relative numbers and location of the strains did not appear to affect the yield response.

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Rhizobacteria inoculation in maize associated with nitrogen and zinc fertilization at sowing

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v25n2p96-100 ◽

2021 ◽

Vol 25 (2) ◽

pp. 96-100

Author(s):

Andréia de L. Moreno ◽

Jorge F. Kusdra ◽

Angelita A. C. Picazevicz

Keyword(s):

Bacillus Subtilis ◽

Nitrogen Content ◽

Plant Height ◽

Nitrogen Fertilization ◽

Azospirillum Brasilense ◽

Dry Weight ◽

Stem Diameter ◽

Wide Range ◽

Maize Plants ◽

Total Dry Weight

ABSTRACT Rhizobacteria have a wide range of plant growth-promoting mechanisms of action, making them an alternative and/or complementary biological input for chemical fertilizers. In this respect, the present study aimed to assess growth and nitrogen accumulation in maize plants as a function of Azospirillum brasilense, Bacillus subtilis, zinc and nitrogen application at sowing. The experiment with the ‘AL Bandeirante’ maize variety was conducted in a greenhouse, using a completely randomized design. The treatments were arranged in a 2 x 2 x 2 x 2 factorial scheme, with six repetitions, considering the presence and absence of Azospirillum brasilense (5 g kg-1), Bacillus subtilis (5 mL kg-1) and zinc (20 g kg-1) in the seeds and addition or not of nitrogen (30 kg ha-1) to the soil. The variables assessed were plant height, stem diameter, leaf, stem, shoot, root and total dry weight, and shoot nitrogen content. Nitrogen fertilization in the absence of zinc increased shoot and total dry weight as well as shoot nitrogen content. Zinc applied to the seeds improved the total and stem dry weight of maize plants in the absence of Bacillus subtilis. Inoculation with Azospirillum brasilense and Bacillus subtilis increased the stem diameter and shoot nitrogen content of maize plants when nitrogen fertilization was not performed at sowing. There was no isolated or interaction effect between factors for plant height and root dry weight.

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Biostimulation of Maize (Zea mays) and Irrigation Management Improved Crop Growth and Water Use under Controlled Environment

Agronomy ◽

10.3390/agronomy9090559 ◽

2019 ◽

Vol 9 (9) ◽

pp. 559 ◽

Cited By ~ 3

Author(s):

Lin ◽

Wu ◽

Chang

Keyword(s):

Zea Mays ◽

Water Stress ◽

Stress Tolerance ◽

Water Use ◽

Crop Production ◽

Irrigation Management ◽

Field Capacity ◽

Dry Weight ◽

Water Stress Tolerance ◽

Total Dry Weight

Water deficits during the growing season are a major factor limiting crop production. Therefore, reducing water use during crop production by the application of regulated deficit irrigation (RDI) is crucially important in water resources. There are few reports on the biostimulants used for growth and water use efficiency (WUE) in maize (Zea mays Linn.) under RDI. Therefore, the influence of betaine and chitin treatments, alone and in combination, on maize cultivar ‘White Pearl’ was assessed by observing changes in the physiology and morphology of plants exposed to RDI. Plants were grown in plastic pots in greenhouses and maintained under full irrigation (FI) for 1 week until imposing RDI and biostimulants. Plants were then subjected to FI (no water deficiency treatment, field capacity >70%) and RDI (field capacity <50%) conditions until the end of each experiment. Plant agronomic performance, photosynthesis parameters, and WUE values were recorded weekly for 8 weeks and three individual experiments were carried out to assess the efficacy of biostimulants and irrigation treatments. Betaine (0, 50, and 100 mM/plant) was foliage-treated every 2 weeks during Experiment 1, but chitin (0, 2, and 4 g/kg) was applied to the soil at the beginning of Experiment 2. The optimal concentration of each chemical alone or in combination was then applied to the plants as Experiment 3. A factorial experiment design of two factors with different levels under a completely randomized arrangement was used in this investigation. Betaine (50 mM) or chitin (2 g/kg) treatments alone significantly elevated total fresh weight (63.03 or 124.07 g/plant), dry weight (18.00 or 22.34 g/plant), and cob weight (3.15 or 6.04 g/plant) and boosted the water-stress tolerance of the maize under RDI compared to controls. However, a combination treatment of 50 mM betaine and 2 g/kg chitin did not increase plant height, fresh shoot and root weights, dry cob weight, and total dry weight under RDI compared to controls. Soil-plant analysis development (SPAD) values (>30) were effective in detecting plant growth performance and WUE values under RDI. These findings may have greater significance for farming in dry lands and offer information for further physiological studies on maize WUE and water stress tolerance

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THE EFFECT OF FERTILIZER UREA AND KCL ON ULTISOL AND INCEPTISOL TOWARD SOIL CHEMICAL PROPERTIES ON CORN ( ZEA MAYS L. ) GROWTH

AgroTech Journal ◽

10.31327/atj.v1i1.209 ◽

2016 ◽

Vol 1 (1) ◽

pp. 50-55

Author(s):

Wira Okriadi Lubis

Keyword(s):

Zea Mays ◽

Nitrogen Content ◽

Soil Acidity ◽

Zea Mays L ◽

Chemical Properties ◽

Dry Weight ◽

Chemical Effect ◽

Corn Plant ◽

Two Factors ◽

Corn Plants

The research was conducted at green house of Agriculture Faculty, North Sumatera University. The research was done to study on the Urea and KCl fertilizer of chemical effect characteristic and growth of corn plant at Ultisols and Inceptisols. The research designed by randomized block factorial with two factors and four dosage replications. The first factors were kind of soils (Ultisols and Inceptisols). The second factor was Urea and KCl fertilizer, each others at 0 ppm, 100 ppm, 200 ppm, 300 ppm N and 0 ppm, 100 ppm, 200 ppm, 300 ppm K2O. The result showed that application of Urea and KCl fertilizers increased height and dry weight of corn plants, soil acidity, nitrogen content and exchangeable Kalium at Inceptisols. Dosage excess of Urea was more at 100 ppm N responsible on height and weight of corn plant.

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Inoculants of Azospirillum brasilense: Biomass production, survival and growth promotion of Setaria italica and Zea mays

Soil Biology and Biochemistry ◽

10.1016/0038-0717(95)00084-4 ◽

1996 ◽

Vol 28 (1) ◽

pp. 123-126 ◽

Cited By ~ 42

Author(s):

Elazar Fallik ◽

Yaacov Okon

Keyword(s):

Zea Mays ◽

Biomass Production ◽

Azospirillum Brasilense ◽

Growth Promotion ◽

Setaria Italica ◽

Survival And Growth

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144 The Effect of Water Stress on Growth of Several Warm-season Turfgrass Species

HortScience ◽

10.21273/hortsci.35.3.414d ◽

2000 ◽

Vol 35 (3) ◽

pp. 414D-414

Author(s):

Edward W. Bush ◽

James N. McCrimmon ◽

Allen D. Owings

Keyword(s):

Water Stress ◽

Vegetative Growth ◽

Cynodon Dactylon ◽

Warm Season ◽

Leaf Tissue ◽

Field Capacity ◽

Dry Weight ◽

Grass Species ◽

Loam Soil ◽

Common Bermudagrass

Four warm-season grass species [common carpetgrass (Axonopus affinis Chase), common bermudagrass (Cynodon dactylon [L.] Pers.), St. Augustinegrass (Stenophrum secondatum Walt. Kuntze.), and zoysiagrass (Zoysia japonica Steud.)] were established in containers filled with an Olivia silt loam soil for 12 weeks. Grasses were maintained weekly at 5 cm prior to the start of the experiment. Water stress treatments consisted of a control (field capacity), waterlogged, and flooded treatments. Waterlogging and flood treatments were imposed for a period of 90 days. The effects of water stress was dependent on grass species. Bermudagrass vegetative growth and turf quality were significantly reduced when flooded. Carpetgrass, St. Augustingrass, and zoysiagrass quality and vegetative growth were also reduced by flooding. St. Augustinegrass and zoysiagrass root dry weight was significantly decreased. Zoysiagrass plants did not survive 90 days of flooding. Leaf tissue analysis for common carpetgrass, common bermudagrass, St. Augustinegrass, and zoysiagrass indicated that plants subjected to waterlogging and flooding had significantly elevated Zn concentrations.

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