ZnO Nanofertilizer and He Ne Laser Irradiation for Promoting Growth and Yield of Sweet Basil Plant

Abstract

This study was conducted to evaluate the effectiveness of zinc nanofertilizer strategy on sweet basil yield, through alone application or combined with pre-sowing laser irradiation. Furthermore, evaluate the growth of plant and the level of active essential oil constituents. Zinc oxide (ZnO) nanoparticles (NPs) were synthesized, and transmission electron microscope revealed particle size of approximately 10.5-15.5 nm. ZnO NPs were applied to sweet basil plants by foliar spray at varying concentrations (10, 20 and 30 mg/L); He Ne laser of power 3mW was used for red light irradiation of sweet basil seeds for 2 min. exposure time. Total chlorophyll, total carbohydrate, essential oil levels, zinc content, plant height, branches/plant and fresh weight were measured. In general, the combined foliar spray application of ZnO nanofertilizer with pre-sowing He Ne laser irradiation showed more effectiveness than ZnO nanofertilizer alone and 20mg/L concentration gave the highest results of all measured traits. Statistical analysis (t-test) showed significant differences among the effects of the various concentrations of zinc oxide NPs on these attributes. The results showed an inverse relationship between the total carbohydrate content and the percentage of essential oil in the leaves. Together these findings support the usefulness and effectiveness of zinc oxide nanofertilizer and laser irradiation treatment to enhance the growth and yield of sweet basil plants. The article presents some promising patents on ZnO nanofertilizer and He Ne laser irradiation.

Alleviation of salt stress on Moringa peregrina using foliar application of nanofertilizers

“…Meanwhile, Zn plays an important role in many biochemical reactions within the plants like chlorophyll and carbohydrate formation (Corredor et al, 2009), increased photochemical reduction rates (Kumar et al 1988), chloroplast structure, photosynthetic electron transfer as well as photosynthesis (Romheld and Marschner, 1991); in enzyme structure involved in amino acid biosynthesis (Cakmak et al, 1989). These results agree with those of El-Kereti et al (2013) and El-Feky et al (2013). The seasons (Miller et al, 1995).…”

Application Of Nanotechnology In Agriculture And Food Industry, Its Prospects And Risks

“…13 nm) with pre-sowing He-Ne laser irradiation to sweet basil plants showed higher effectiveness than ZnO nanofertilizer alone, and 20 mg/dm 3 concentration gave the highest results of all measured traits (sweet basil yield, total chlorophyll, total carbohydrate, essential oil levels, Zn content, plant height, branches/plant and fresh weight), indicating the usefulness and effectiveness of ZnO nanofertilizer and laser irradiation treatment to enhance the growth and yield of sweet basil plants [245].…”

Bioestimulación láser en semillas y plantas

“…Los bioefectos debidos a la irradiación láser de baja intensidad (ILBI) en semillas presiembra y en plántulas o plantas durante su desarrollo (i.e., aplicación de energía fotónica en longitudes de onda y dosis específicas que producen un macro o micro efecto) han sido confirmados por numerosos estudios usando semillas de diversos cultivos (Paleg & Aspinall 1970, Govil et al 1983, Koper et al 1999, Katanska et al 2003, Hernández-Aguilar et al 2006, Drozd & Szajsner 2007, Podleśny 2007, Muszyñski & Gladyszewska 2008, Aladjadjiyan & Kakanakova 2008, Osman et al 2009, Aladjadjiyan 2012, Hoseini et al 2013, El-Kereti et al 2013, Jia & Duan 2013, Dobrowolski et al 1997, Śliwka 2014, Srećković et al 2014, Kouchebagh et al 2014, Gao et al 2014. A partir de la llegada de los láseres en los años 60´s (Nasim & Jamil 2014), se inició su aplicación en sistemas biológicos (Bessis et al 1962), incursionando al sector agrícola como elemento bioestimulador (BE) de plantas y semillas con el láser de rubí (Wilde et al 1969), y posterior a su descubrimiento también han sido aplicados los láseres de He-Ne (Helio-Neón), Ar (Argón), Neodimio-YAG (Nd-YAG), dióxido de carbono (CO 2 ) y diodos (en distintas longitudes de onda -λ), (Paleg & Aspinall 1977, Govil et al 1985,1991, Koper et al 1996, Rong et al 2001, Chen & Wang 2004, Chen & Sun 2006, Qiu et al 2008a, Chen 2008, Aladjadjiyan 2007a, 2007b…”