Effect of Dust Types on the Eco-Physiological Response of Three Tree Species Seedlings: Eucalyptus camaldulensis, Conocarpus erectus and Bombax ceiba

Abstract

Dust is the collection of fine particles of solid matter, and it is a major issue of atmospheric pollution. Dust particles are becoming the major pollutants of the urban environment due to hyperbolic manufacturing and automobile pollution. These atmospheric pollutants are not only hazardous for human beings, but they also affect tree growth, particularly in urban environments. This study was designed to examine the changes in morphological and physiological traits of three tree species seedlings (Eucalyptus camaldulensis, Conocarpus erectus, and Bombax ceiba) in response to different dust types. In a pot experiment under controlled conditions, three-month-old seedlings of selected trees species were subjected to four treatments of dust: T1 = controlled; T2 = wood dust; T3 = soil dust; and T4 = carbon dust. During the whole experiment, 10 g/plant/dose was applied in 8 doses with a one-week interval. The results depicted that the growth was the maximum in T1 (control) and the minimum in T4 (carbon dust). In our findings, B. ceiba performed better under the same levels of dust pollution as compared with the other two tree species. The B. ceiba tree species proved to be the most tolerant to dust pollution by efficiently demolishing oxidative bursts by triggering SOD, POD, and CAT under different dust types compared to controlled conditions. Stomatal conductance, photosynthetic rate, and transpiration rate were negatively influenced in all three tree species in response to different dust applications. Based on the findings, among these three tree species, B. ceiba is recommended for dust polluted areas followed by E. camaldulensis and Conocarpus erectus due to their better performance and efficient dust-foraging potential.

Genetic analysis of yield traits in Egyptian cotton crosses (Gossypium barbdense L.) under normal conditions

“…In addition, highly significant differences were exhibited across female parental genotypes, testers, and their interaction for studied traits. Practically, the combining ability of genotypes is dissected to discover genotypes with high genetic potential for developing cross combinations with desired traits and to study the activity of genes involved in trait expression [33,[57][58][59][60]. Using the Line X Tester analytic method, we can better estimate and predict essential quantitative features, which is a well-established biometrical genetics-based approach in the context of this inquiry [5,22,25,54,[61][62][63][64] Combining ability is measured via two genetic parameters, GCA and SCA, which may be respectively controlled by the additive genetic effects and non-allelic interactions of the parents [33,65,66].…”

The ecophysiological response of Bombax ceiba L. to soil of industrial areas

“…B. ceiba seedlings grew better in soil of National Foods Ltd., Factory due to better physical soil conditions, bulk density and soil porosity Table 2. Eco physiological response of B. ceiba to fine particle of dust pollution recorded [25]. B. ceiba seedlings prefer noticeably to grow with less moisture content and total porosity.…”

The impact of Heavy dust pollution reduces biodiversity by altering the metabolism and biochemical characteristics of Fagonia indica

“…Dust blocks the stomata, which affects the gaseous exchange of plants, which may eventually affect biochemical reactions such as photosynthesis and respiration. Leaf morphological attributes may also be disturbed, such as a reduction in leaf area take, which weakens the plants and causes them to die, disrupting the ecosystem (Nawaz et al, 2022). Effects of dust on plants also depend upon their dust capturing abilities mainly depending on their leaf morphology (Tan et al, 2022).…”