The Effect of Soaking in Water and of Aeration on the Growth of Zea Mays

Andrews, F. M.; Beals, Colonzo C.

doi:10.2307/2479869

Cited by 12 publications

(6 citation statements)

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“…Oxidising activity is for instance thought to be at a maximum during the tillering stage (Okajima 1964) while Alberda (1953) has found this activity to decrease markedly towards heading. Further to this the state of oxidation-reduction in the soil and the associated properties may also exert a marked influence, even if only indirect, on the various properties of roots such as volume of air space tissue (Beale 1918, Andrews and Beal 1919, Bryant 1934, oxygen diffusion (van Raalte et al 1963), respiratory rates etc. Stich problems seem to have received the minimum of attention as yet, but require lengthy investigation.…”

Section: Resultsmentioning

confidence: 99%

Rhizosphere Oxidation in Rice: An Analysis of Intervarietal Differences in Oxygen Flux from the Roots

Armstrong

1969

Physiologia Plantarum

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The polarographic technique (Armstrong 1967) has been found suitable for the detection of significant intervarietal differences in oxygen diffusion from rice roots. All the evidence obtained supports the thesis that intervarietal differences in oxygen diffusion rate occur and the varieties tested may be arranged in order of increasing oxygen flux as follows N 36 < N 22 < N 29 < N 32 < Yubae. The lowest oxygen flux rates are found in those varieties (N 22 and N 36) susceptible to Akagare disease of rice while the flux rates of varieties resistant to Akagare (N 29 and N 32) are higher. On the basis of these results one would also expect Yubae to be resistant to Akagare. The results are discussed with reference to previous work which has shown the oxidising activity and carbohydrate exudation properties of rice roots to be similarly correlated with resistance or susceptibility to Akagare. Attention is drawn to what it is felt are the shortcomings in existing techniques for measuring the oxidising activity of roots. It is suggested that with certain provisions the polarographic technique may he found useful in any effort to build up high oxidising power into the new plant type proposed for the tropics.

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Section: Resultsmentioning

confidence: 99%

Rhizosphere Oxidation in Rice: An Analysis of Intervarietal Differences in Oxygen Flux from the Roots

Armstrong

1969

Physiologia Plantarum

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“…Cross sections of the roots showed no breakdown of cells in the case of the plant from the aerated solution, but large passages were present in the cortex of the roots from the non-aerated plant. Andrews and Beals (1919) aerated Zea Mays at several rates and obtained the greatest amount of growth with. the greatest amount of air bubbled through the solution.…”

Section: Growth Of Tomato Roots As Influenced By Oxygen In Thementioning

confidence: 99%

“…The carbon dioxide content of the non-aerated solution, on the other hand, rose to what appeared to be serious proportions, when compared with the magnitude of the oxygen changes, but judging by the results of the carbon dioxide experiment, it reached a value which might have been slightly limiting only at the close of the experiment. Andrews and Beals (1919) and Durell (1941) made rough quantitative determinations of the amount of aeration needed for the best growth of the species they studied, but the lack of any solution analyses left the critical conditions of the solutions unknown. To obtain a fundamental basis for the rate of aeration it is necessary, first of all, to determine the optimum concentration of oxygen in the solution for the species under consideration.…”

Section: Growth Of Tomato Roots As Influenced By Oxygen In Thementioning

confidence: 99%

Growth of Tomato Roots as Influenced by Oxygen in the Nutrient Solution

Erickson

1946

American J of Botany

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“…A survey of the literature shows that, with rare exceptions, there is general agreement that the aeration of the roots promotes a better growth of tops. AMost of the experiments w-ere carried on in water cultures, e.g., IIALL, BRENCHILEY and UNDERWOOD (12), ANDREWS and BEALS (1), and BERGMAN (3), and some in soil, such as those of 11UNTER (19), IIOLE (14), HOWARD (15), and KNIGHT (21). The response of the plant in most cases has been measured by the developmeint of tops and little account has been taken, especially in soil cultures, of the organs directly affected by the increased aeration.…”

mentioning

confidence: 99%

“…squtiare in cross section, were uised for eaell species. The followiing conditions of soil inoisture and coilcomitant aeration wNere maintained: (1) saturated, no free air; (2) alternately saturated and drained, aerationi poor; (3) optimum water contenit for land plants, aerationi good; and (4) dry soil, aeration good. The deptlh of tlle containers necessary to accommodate maximum root growth was deternmined by preliminary experiments; those for conditions 1 and 4 were 60 ecn.…”

mentioning

confidence: 99%