Effects of Simulated Acid Rain on Phaseolus vulgaris L. (Fabaceae)

Ferenbaugh, R.W.

doi:10.2307/2441572

Cited by 66 publications

(36 citation statements)

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“…Many authors have observed a reduction in starch grains after treatment with acid liquids (Ferenbaugh, 1976;Crang & McQuattie, 1986) or ozone (Sutinen (a, b, c) , 1990), and the present pH 3 and pH 4-treated seedlings showed a decrease in the occurrence of starch over the whole year even after their first summer of exposure (Table 2). In October, however, the starch accumulation was greatest in the pH 3-treated needles (Table 3).…”

Section: Discussionmentioning

confidence: 65%

Structural responses of needles of conifer seedlings to acid rain treatment

Bäck

Huttunen

1992

New Phytologist

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SUMMARYThe mesophyll ultrastructure of needles of Norway spruce [Pkea abies (L.) Karst.] and Scots pine (Pinus sylvestris L.) seedlings was examined in the course of experimental acid rain treatment lasting three years. The pH 3-treated needle mesophyll cells exhibited thicker granal packing in their chloroplasts than the dry control needles after one season's irrigation. Starch occurrence had decreased due to pH treatment when the whole hardening and rest period was considered. Chloroplast shapes were seen to vary from ellipsoid to irregular, especially in the pH 4 and pH 3-treated needles, due to divisions during hardening. The mean area of mesophyll chloroplasts in the hardened state after three seasons' irrigation was largest (10-3 /(m^) in the pH 3-treated needles, which also contained the smallest number of dark-stained plastoglobuii. Starch occurrence in the hardened mesophyll cells in October reflected disturbances in the hardening processes in the pH 3-treated needles.

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Section: Discussionmentioning

confidence: 65%

Structural responses of needles of conifer seedlings to acid rain treatment

Bäck

Huttunen

1992

New Phytologist

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“…Further more, the nutrients and minerals in the soil which help the trees to grow such as potassium, calcium and magnesium. All this facts will exposed the teachers of Biology in the study area to communicate this knowledge to the students they thought (Ferenbough, 1976).…”

Section: Discussion Of Findingsmentioning

confidence: 99%

Acid Rain and Environmental Problems: Implications for the Teaching of Biology in Schools in Riverine Communities

Osu

Ekpo

2013

AJIS

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This study was conducted to investigate the influence of acid rain and environmental problems on the teaching of Biology in schools in the riverine communities of Akwa Ibom State -Nigeria. One hundred and eighty (180) Biology teachers were selected using the stratified sampling technique. A questionnaire titled "Acid rain and Teaching of Senior Secondary Biology" (ARTSSB) was used to collect data for testing the four null hypotheses of the study at .05 level of significance. Data analysis was done using the t-test statistics. Findings were made that the damage of buildings by acid rain, the destruction of forest by acid rain, the devastation of arable land by acid rain and the acidification of surface and domestic waters by acid rain all had a significant influence on the study of senior secondary Biology. Recommendations were made among others that: the ecology component of the Biology curriculum for secondary schools should be effectively taught; important environmental issues including acidification of environment by acid rain should be incorporated into the senior secondary curriculum and be carefully thought by teachers of Biology.

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“…1,2 Many analytical methods have been used for studying the impact of acid rain or acid solutions on plants. For example, atomic absorption spectroscopy was used for the determination of minerals in plants treated with acid rain.…”

Section: Introductionmentioning

confidence: 99%