NORM is a material containing radioactive elements that exist naturally. All minerals and raw materials contain radionuclides from nature, most important for radiation protection purposes are the U-238, Th-232 and K-40 decay series. This element naturally grows and is considered a major contributor to the annual individual background radiation dose. Therefore, each individual can be exposed to NORM through various activities they do, one of which is gold mining activities. Gold mining in addition to causing exposure to NORM, is believed also can cause significant environmental damage. This study aims to determine the index of radioactive risks that resulted from gold mining activities in the batang kuantan river. The sample used for this research is soil from batang kuantan river which then analyzed using gamma ray spectrometry. The results show that the index of radioactive risk value indicated by all soil samples in the batang kuantan river is still below the predetermined maximum limit value.
Yardlong bean is one of the important vegetable crops in Indonesia. Immature pod of yardlong bean has various colour such as green, whitish green, red and purple. Artificial cross was done between purple and whitish green pod to get F1. First filial (F1) were advanced to F5 segregating generations for variability and heritability. The research objective was to estimate variability and heritability in F5 populations. There were nine genotypes of F5 population. Characters measured were number of leaf, pod length, number of pod, number of seed per pod, number of seed per plant and weight of 100 seeds. The results showed that significance difference observed among genotypes for all characters. The phenotypic variance (σ2 ) and phenotypic coefficient of variation (PCV) were higher than corresponding genotypic variance (σ2g) and genotypic coefficient of variation (GCV) for most of the characters. High heritability were obtained for number of leaf, number of pod and number of seed/plant. Pod length, number of seed/pod and weight of 100 seeds had moderate heritability. Number of seed per plant had high heritablity and high genetic advance
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.