Narrow Results

Periconia sp. (endophytic fungus) biomass was effectively explored as the source for the fabrication of carbon nanostructures by one-step carbonization at 800^∘C for 2h. The morphological characterizations of obtained biocarbon through SEM and TEM analysis revealed the formation of 2D-platelet-like carbon nanostructures. Further, its phase and structural characterizations through Raman and XRD analysis also supported the same. The obtained biocarbon was coated upon mung bean seeds to investigate its influence on germination and growth. The preliminary results revealed that the biocarbon accelerates seed germination and growth behavior of mung bean, which was observed by means of length, mass, and surface area profile respectively for the the plant’s shoots, roots, and leaves. It was also found that the germination and growth effects are highly dependent on the concentration of the biocarbon, in which 1000mg of biocarbon in 50mL of water is found to be higher than the lower concentration for seed germination and seedling growth.

Taking seeds of Cichorium intybus L. as materials, using the method of germination in petri dish, effect on C. intybus L. seeds germination under different concentrations of NaCl, NaHCO₃ solution and both 1:1 mixed solution stress and after the stress being removed was studied, in order to investigate salinity tolerance ability of C. intybus L. seeds. The results showed that seed germination rate, germination potential and relative germination rate was decreased with NaCl, NaHCO₃ and both 1:1 mixed concentration was increased. At high concentration, the inhibitory effect of seed was the most significant. The optimal, critical and limit value of NaCl that affected relative germination rate was 3.509‰, 5.644‰, 7.779‰; these of NaHCO₃ concentration was 3.448‰, 5.736‰, 8.023‰ and these of both 1:1 mixed concentration was 4.076‰, 6.654‰, 9.232‰. The results of relief stress suggested that seeds stressed of higher concentration of NaCl, NaHCO₃ and both 1:1 mixed still had greater germination capacity especially, it showed the seeds of C. intybus L. had stronger resistance to salt and alkali.