Root and Top Growth of Corn<sup>1</sup>

Foth, Henry D.

doi:10.2134/agronj1962.00021962005400010016x

Cited by 78 publications

(49 citation statements)

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“…However, most root studies have used this technique, although comprehensive studies have not often been attempted. Root dry matter yield (Table 2) represented about 10% of the total, which agrees with the data of Weihing (1935), Foth (1962), and van Eijnatten (1963) and suggests that roots may have an important influence on sourcesink patterns during growth and development and thus warrant further detailed study. As might be expected, the amount and rate of N uptake by the maize plants varied with the amount of N available to the root systems (Table 4), which was also reflected in the concentrations in the plant components.…”

Section: Discussionsupporting

confidence: 84%

Effect of rate and time of fertiliser nitrogen application on total plant, shoot, and root yields of maize (Zea maysL.)

Thom¹,

Watkin²

1978

New Zealand Journal of Experimental Agriculture

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Nitrogen at 0, 84, 168, 336, and 672 kg/ha was applied as liquid urea to a commercial maize cultivar (PX610) over three different growth stages. Plants were grown at a population of 96 900/ha and received continual trickle irrigation. Response was measured in terms of dry matter and nitrogen yields of the whole plant, leaf laminae, stem, cob, grain, husk, and roots. Overall yields of grain (11 000-14 000 kg/ha) and total plant dry matter (24 000-29 000 kg/ha) at physiological maturity were high, but dry weight responses to different levels of nitrogen and times of application were not significant. Nitrogen content of the whole plant increased significantly with increasing nitrogen application rate. Dry matter and nitrogen concentration in the plant components changed in relation to changes in source-sink patterns as reproductive development began. Plants receiving 0 and 84 kg fertiliser N/ha showed classical nitrogen deficiency symptoms from late vegetative growth to maturity, but were the most efficient in using available nitrogen for grain production.

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Section: Discussionsupporting

confidence: 84%

Effect of rate and time of fertiliser nitrogen application on total plant, shoot, and root yields of maize (Zea maysL.)

Thom¹,

Watkin²

1978

New Zealand Journal of Experimental Agriculture

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“…Com root distribution in loam and sandy loam soils in Michigan (Foth, 1962), and in a silt loam soil in Illinois (Fehrenbacher and Alexander, 1955) have been described. Additional field studies of corn rooting systems have been limited to measuring root weights at certain row or interrow positions (Barber, 1971;Mayaki et al, 1976;Kaspar et al, 1991) or root length densities (Raczkowski, 1988;Vepraskas and Hoyt, 1988).…”

Section: Introductionmentioning

confidence: 99%

Corn root dry matter and nitrogen distribution as determined by sampling multiple soil cores around individual plants

Crozier

King

1993

Communications in Soil Science and Plant Analysis

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Although models of nitrogen (N) flow in agroecosystems describe total plant N uptake, only limited data on roots exists. Underground dry matter and N distribution patterns in corn (Zea mays L.) were determined by isolating root segments from soil cores collected around plants at anthesis from a Typic Kanhapludult. Samples were collected from two treatments: no-till with 70 kg N/ha and conventional tillage and planting with crimson clover (Trifolium incarnatum L.) as a N source. Seven soil cores (4.2 cm diameter) per plant were taken to recover roots in the 0-to 15-cm and 15-to 30-cm depth intervals. Sampling positions were at the base of the plant and at distances (perpendicular to the row) of 6, 16, and 27 cm into the trafficked interrow, and 11, 22, and 32 cm into the untrafficked interrow. Underground shoot and root segments were isolated from soil cores by hydropneumatic elutriation. Root distribution patterns in the no-till treatment were similar in trafficked and untrafficked interrows, but more roots were detected in the untrafficked interrows than in the trafficked interrows in the tillage treatment. Averaged over treatments, 85 % of the root weight and 81% of the root N were in the 0-to 15-cm depth interval. The 1. Mention of trade names does not constitute endorsement of any product or imply that other commercial products are less suitable.

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“…Ocamb and Kommedahl (1994) reported that F. moniliforme survived most readily in soil to a depth of 30 cm, and survival increased from the soil surface to that depth. Most seedlings collected in our study were in végétative stage 1 as defined by Foth (1962). Since ail samples were removed and inspected from 3 to 28 d after planting, seedling roots were within the zone of reportedly high concentration of F. moniliforme.…”

Section: Discussionmentioning

confidence: 99%

The colonization of maize seedling roots and rhizosphere by Fusarium spp. in Mississippi in two soil types under conventional tillage and notillage systems

Soonthornpoct¹,

Trevathan

Ingram³

2005

phyto

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Pioneer 3167 hybrid maize was planted on two soil types in Mississippi on four dates annually from 1995 to 1997 and was sampled at weekly intervals beginning one week and ending 4 weeks after planting. Plots were either tilled with a do-all and rows formed in the fall or were left undisturbed until planting in the spring. Under tillage, Fusarium spp. were isolated most frequently at the earliest and latest planting dates when seedlings were sampled at 10 and 17 days. In no-tillage plots, the overall isolation frequency was lower than in conventional-tillage plots and decreased with later planting dates and sampling times. The highest Fusarium populations were found in the rhizosphere of a silt loam in conventional-tillage plots when seedlings were sampled 28 days after the second planting in 1997, compared to populations from a silty clay soil. Fusarium moniliforme, F. solani and F. oxysporum were the predominant Fusarium spp. isolated from maize seedling roots. In pathogenicity tests, F. moniliforme and F. solani produced measurable effects on maize seedlings. F. moniliforme reduced the length of primary roots and decreased the number of secondary roots, and F. solani reduced root dry weight of maize seedlings.

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Root and Top Growth of Corn¹

Abstract: Synopsis Root growth was found to occur in a series of stages which caused roots to appear in different locations of the soil at different times. Root growth stages were associated with stages of top growth.

Cited by 78 publications

References 1 publication

Effect of rate and time of fertiliser nitrogen application on total plant, shoot, and root yields of maize (Zea maysL.)

Effect of rate and time of fertiliser nitrogen application on total plant, shoot, and root yields of maize (Zea maysL.)

Corn root dry matter and nitrogen distribution as determined by sampling multiple soil cores around individual plants

The colonization of maize seedling roots and rhizosphere by Fusarium spp. in Mississippi in two soil types under conventional tillage and notillage systems

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Root and Top Growth of Corn1

Abstract: Synopsis Root growth was found to occur in a series of stages which caused roots to appear in different locations of the soil at different times. Root growth stages were associated with stages of top growth.

Cited by 78 publications

References 1 publication

Effect of rate and time of fertiliser nitrogen application on total plant, shoot, and root yields of maize (Zea maysL.)

Effect of rate and time of fertiliser nitrogen application on total plant, shoot, and root yields of maize (Zea maysL.)

Corn root dry matter and nitrogen distribution as determined by sampling multiple soil cores around individual plants

The colonization of maize seedling roots and rhizosphere by Fusarium spp. in Mississippi in two soil types under conventional tillage and notillage systems

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About

Root and Top Growth of Corn¹