The effect of hormones and chemical growth regulators on ear development and grain yield of nonprolific corn (Zea mays L.)

Khosravi, Gholamreza

doi:10.31274/rtd-180813-11776

Cited by 5 publications

(8 citation statements)

References 181 publications

(198 reference statements)

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“…In this study, ZAA at 0.85 and 8.5 ppm showed a positive effect on germination of 'Jacques 7820,' which is consistent with our previous results (Liu et al, 1997). ZAA action at a low concentration has led to speculation about a possible secondary regulatory function of ZAA, by which a plant hormone such as indole-3-acetic acid (IAA) and cytokinins, or the normal pattern of metabolism, is altered (Khosravi, 1980;Thasanasongchan, 1981) and, in turn, plant responses are induced.…”

Section: Discussionsupporting

confidence: 91%

Fate of Zinc Ammonia Acetate in Soils and Its Uptake by Corn

Liu

Jones

Malzer

et al. 2006

Journal of Plant Nutrition

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Zinc ammonium acetate (ZAA) is applied to soil with anhydrous ammonia as a carrier to improve corn (Zea mays L.) productivity. To study the fate of ZAA in the soils, a laboratory leaching experiment was conducted with 14 C-ZAA and 65 Zn-ZAA using water or NH 4 OH as carrier. Results showed that ZAA degraded in the soil and released CO 2 . The released CO 2 was from the acetate component of ZAA and accounted for less than 0.06% of the total applied 14 C. Using H 2 O as carrier resulted in more CO 2 release than using NH 4 OH, regardless of soil type. However, more 14 C was detected in the leachate when using NH 4 OH as a carrier than when using H 2 O. A plant uptake experiment using 14 C-ZAA and 65 Zn-ZAA indicated that four-leaf-stage corn seedlings absorbed higher amounts of 14 C in the stem and root than in the leaves. The 65 Zn was detected in most tested plant parts. Our study showed that ZAA enhanced cytokinin levels in root and/or shoot tissues of corn seedlings, suggesting a secondary regulatory effect of ZAA in improving corn productivity.

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Section: Discussionsupporting

confidence: 91%

Fate of Zinc Ammonia Acetate in Soils and Its Uptake by Corn

Liu

Jones

Malzer

et al. 2006

Journal of Plant Nutrition

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“…The yield increase, as a result of the chemicals, was due mainly to greater weight per ear. The greater weight per ear was due mainly to greater weight per kernel as had been reported by Khosravi (1980).…”

Section: Methodssupporting

confidence: 68%

“…Previous studies (Ott, 1975;Khosravi, 1980) have shown that about 0.1 kg/ha of zinc acetate added to anhydrous ammonia applied to corn increased grain yield. Khosravi In Experiment 5, the influence of date of planting and placement of the chemicals was studied.…”

Section: Methodsmentioning

confidence: 93%

The influence of acetates on growth and yield of corn (Zea mays L.) and soybean [Glycine max (L.) Merr.]

Thasanasongchan

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“…Low concentrations of ZAA (µl/L level) have also increased plant height, leaf area, and shoot and root dry weight of corn seedlings (Liu et al, 1997). The literature suggests that ammonium acetate (Ott, 1982;Thasnaasongchan, 1981), zinc (Zn) (Khosravi, 1980;Ott, 1974Ott, , 1975Ott, , 1976Thasnaasongchan, 1981), or acetate (Ott, 1982;Thasnaasongchan, 1981) could be directly involved with stimulation of plant growth after it is applied in the soil. However, the fate of ZAA in soils and the determination of the effective components of ZAA have been critical concerns for both researchers and farmers.…”

Section: Introductionmentioning

confidence: 96%

“…The chemical, which is formulated by combining acetic acid, water, anhydrous ammonia, and zinc oxide in a patented procedure (Ott, 1974), has been reported to increase the grain yield of corn (Zea mays L.) as a result of increased weight per kernel (Thasnaasongchan, 1981;Khosravi, 1980;Oplinger, 1990). Low concentrations of ZAA (µl/L level) have also increased plant height, leaf area, and shoot and root dry weight of corn seedlings (Liu et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

Degradation of¹⁴C-Zinc Ammonium Acetate in Soils as Influenced by Soil Types, Soil Sterilization, and Carriers

Liu¹,

Malzer

Rehm

et al. 2006

Journal of Plant Nutrition

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Zinc ammonium acetate (ZAA), typically applied to soils in anhydrous ammonia as a carrier, has been used to improve corn (Zea mays L.) productivity. This study aimed to determine the fate of ZAA in soils as influenced by soil type (sandy, silt, and clay loam), sterilization (sterile and non-sterile), and two carriers (H 2 O and NH 4 OH). A 16 d laboratory incubation experiment with 14 C-ZAA showed that total recovery of carbon-14 ( 14 C) from 14 CO 2 trap and soil extraction by CaCl 2 ranged from 72% to 94% in the first 8 d for sterilized soils. However, <17% 14 C was found in non-sterilized soils. Most 14 C recovered in sterilized soil was associated with soil extraction, and relatively little was found in the CO 2 traps. All sterilized soils provided similar 14 C recoveries except the sandy loam. Slightly more 14 C was extracted from the soil when NH 4 OH was the ZAA carrier rather than water. Conversely, recovery of 14 CO 2 continued to increase during the 16 d incubation, but started faster when water was the ZAA carrier. Microbial activity appeared to be instrumental in the assimilation and disappearance of ZAA.

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The effect of hormones and chemical growth regulators on ear development and grain yield of nonprolific corn (Zea mays L.)

Cited by 5 publications

References 181 publications

Fate of Zinc Ammonia Acetate in Soils and Its Uptake by Corn

Fate of Zinc Ammonia Acetate in Soils and Its Uptake by Corn

The influence of acetates on growth and yield of corn (Zea mays L.) and soybean [Glycine max (L.) Merr.]

Degradation of¹⁴C-Zinc Ammonium Acetate in Soils as Influenced by Soil Types, Soil Sterilization, and Carriers

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The effect of hormones and chemical growth regulators on ear development and grain yield of nonprolific corn (Zea mays L.)

Cited by 5 publications

References 181 publications

Fate of Zinc Ammonia Acetate in Soils and Its Uptake by Corn

Fate of Zinc Ammonia Acetate in Soils and Its Uptake by Corn

The influence of acetates on growth and yield of corn (Zea mays L.) and soybean [Glycine max (L.) Merr.]

Degradation of14C-Zinc Ammonium Acetate in Soils as Influenced by Soil Types, Soil Sterilization, and Carriers

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Degradation of¹⁴C-Zinc Ammonium Acetate in Soils as Influenced by Soil Types, Soil Sterilization, and Carriers