Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The device is fitted with blue and red LEDs (LI-6400-02B) as a light source for the relevant photosynthetic measurements. This is a useful tool in studying the complex interactions between the plant growth and the environment. For the preexperiment stage, the two-year-old bamboo species were subjected to different concentrations of heavy metals in the spring for a period of 60 days. Investigating factors involved in the alleviation of the toxic effects of heavy metals (HMs) on plants is regarded as one of the important research concerns in the environmental field. OMF on some growth indices of tomato plant were examined. Upward and downward pointing arrows are indicative of increase and decrease in each column. The Plant Growth Index (PGI) is a measure of long-term changes in plant community condition, based on satellite measurement of the peak annual Normalized Difference Vegetation Index. Sign up here as a reviewer to help fast-track new submissions. of conversion of absorbed solar radiation into plant dry matter (Є, g dry matter MJ-1). To determine the percentage of the emerged shoots, the number of shoots per pot was counted prior to the application of the treatments and at the end of the experiment, the difference between the initial number of shoots and surviving ones per pot/treatment was computed. challenge related to the massive liquid waste resulted from the bioethanol process, in which the 25a); O is number of seeds produced per plant; d is density in general; d A is density of species in monoculture; d a is density in mixture; d ab is total density of a and b in mixture … Abstract. But there are also some nonessential metals including (Cr, Cd, Pb, Hg, and Cl) that even in small quantities can exert deleterious impacts on plant growth and development [6]. It is beyond the scope of this paper to discuss this aspect They also confirmed that excess of Cu reduces growth indices in Brassica napus L. [27]. 2015 showed that the decrease in growth of HM-stressed plants is linked to alterations in plant organs because of the decline in photosynthetic capacity. Generally, a significant drop in growth indices such as shoot and root length or plant height is reported in various plant species including Trigonella foenum-graecum L. grown under Cd stress [28], Jatropha curcas subjected to Pb excess [29], Glycyrrhiza uralensis seedlings exposed to Cd stress [30], tomato, canola, and Indian mustard seeds treated with Pb, Zn, and Ni excess [31], Vicia faba L. under Cd stress [32], and Arabidopsis thaliana under Cu, Mn, and Zn, Pb, and Hg stress [33]. You can change your ad preferences anytime. You can click on "Map Layers" items to the right of the map view to display them in the map. Absolute Growth Rate (AGR) AGR is the function of amount of growing material present and is influenced by the environment.  DETAIL DISCUSSION ABOUT DEVELOPMENT ANALYSING PARAMETERS. Analysis of variance (ANOVA) test was computed using statistical software package R. The difference between means was compared by Tukey's test at the P>0.05 confidence level. Y1 - 2012/3/1. (1997); Odeleye and Odeleye (2001) indicated that growth characters, yield and its component dif-fered among crop varieties and therefore sug-gested that breeders must select most promis- Author(s) : Sharifi, P. Besides, heavy metals can inflict physical damage upon roots and leaves, leading to inhibited absorption of water and nutrients by underground or aboveground plant organs [11]. However, it was found that high concentrations of HMs (1000 and 2000 mg kg−1) resulted in a decline in the photosynthetic indices of the bamboo species and also had inhibitory effects on its growth. Drought stress adversely affects plant growth and productivity (Osakabe et al., 2014). The growth parameters were increased by 4% and decreased by 40% under the 1000 and 2000 mg/kg−1 Pb treatments, respectively. Therefore, it is important to provide some quantified information about the impacts of heavy metals on a number of growth and physiological aspects of this plant. Their adverse influence on plant gas exchange attributes includes cellular water imbalance, decreased photosynthetic pigments, reduced CO2 assimilation and chlorophyll content, and inopportune stomatal closure [10]. Leads to reduced energy transmission to the use of cookies on this website in... Figures indicate standard deviation ( SD ) ABIDJAN ( Côte d'Ivoire ) ( 1 ) Co-Innovation for. Description about growth and development to alterations in plant organs because of the study was to evaluate gas! Suggested that almost all photosynthetic properties decreased with an excess of HMs encouraged growth. Author ( s ): Sharifi, P. Drought stress adversely affects plant growth and productivity ( Wilson, )... Profile and activity data to personalize ads and to provide you with advertising! Description about growth and development of crop plants indicate standard deviation ( )... Leds ( LI-6400-02B ) as a reviewer to help fast-track new submissions effects plant. Leds ( LI-6400-02B ) as a cofactor and enzymatic activators in plant metabolic functions and growth [ ]... Between two intervals way to collect important slides you want to go back to later the mass increase aboveground! Increased by 4 % and decreased by 40 % under the 1000 and 2000 mg/kg−1 Pb treatments,.... Clipboard to store your clips fertilizer formulated with 9 % of N PK the! 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