I study biodiversity and ecosystem functioning, plant-microbe interactions and related problems. Disentangling complicated theories and explaining in simple language with interactive means to students gives me pleasure and boosts my confidence.
Greenhouse Gas Discharges from Farming Modeled Mathematically for Various End Users Data Driven Mathematical Modeling in Agriculture Tools and Technologies, 2024
Salinity-dependent study on mangrove seedling existence and development International Journal of Chemical and Biochemical Sciences, 2023
Calliterpenone, a natural plant growth promoter from a medicinal plant Callicarpa macrophylla, sustainably enhances the yield and productivity of crops Praveen Pandey, Shiv Shanker Pandey, Ashutosh Awasthi, Arpita Tripathi, Hemendra Pratap Singh, et al. Frontiers in Plant Science, 2022 The global population is rising at an alarming rate, which is threatening food and nutritional security. Although chemical fertilizers and pesticides are important for achieving food security, their excessive usage critically affects soil health and adds up residues in the food chain. There is an increasing interest in identifying eco-friendly farm inputs that can improve crop productivity through sustainable agricultural practices. One of the most common approaches to reducing chemical inputs in agriculture is the use of plant growth regulators (PGRs). Here, we demonstrate the benefits of a natural and novel plant growth enhancer “calliterpenone,” isolated from Callicarpa macrophylla, a medicinal plant, for increasing crop productivity in six crops, viz., rice, wheat, potato, tomato, chickpea, and onion. Results revealed that the application of calliterpenone (foliar spraying or seed soaking) enhanced the yield of rice (28.89%), onion (20.63%), potato (37.17%), tomato (28.36%), and chickpea (26.08%) at 0.001 mM and of wheat (27.23%) at 0.01 mM concentrations in comparison to control. This enhancement in yield was reflected through improvements in its growth attributes, viz., spike length, tillers plant−1, seeds spike−1, plant height, and biomass. Furthermore, the exogenous application of calliterpenone could increase the endogenous level of indole-3-acetic acid (IAA) in all tested crops and decrease the content of abscisic acid (ABA) in a few. Trials conducted at farmers' fields showed an overall ~12% increase in rice yield (mean of 11 farmers' fields ranging from 3.48 to 19.63%) and ~10% increase in wheat yield (ranging from 3.91 to 17.51%). The 0.001 mM of calliterpenone was the best effective dose for most crops except wheat, where a concentration of 0.01 mM was found to be the most optimal. This study indicates that calliterpenone is a natural plant growth promoter that can be used in boosting the yields of multiple crops and would be an important input component of organic farming.
A reinterpretation of hindu spirituality for addressing environmental problems Ashutosh Awasthi Religions, 2021 Global environmental change is a serious threat to our existence and requires immediate actions from every dimension of our efforts. The cultural pathway has much potential to address environmental problems because it is expected to promote environment-friendly behavior in people. However, its implementation on the ground requires a wise coordination of the cultural and scientific ways of thinking. Hinduism has great potential to embrace environment-friendly behavior due to its receptivity to change and tendency of adopting and theologizing new developments. However, due to the presence of a wide gap between theoretical philosophy and actual practices, the potential of environmental sensibility, inherent in Hindu spirituality, could not be harnessed. Here, I reinterpret the key concepts of Hinduism in the light of modern scientific wisdom for their synchronization with current challenges. I identify some solutions for promoting environment-friendly practices in Hinduism through the coordination of science and culture.
Vulnerability of Soil Microbiome to Monocropping of Medicinal and Aromatic Plants and Its Restoration Through Intercropping and Organic Amendments Pooja Misra, Deepamala Maji, Ashutosh Awasthi, Shiv Shanker Pandey, Anju Yadav, et al. Frontiers in Microbiology, 2019 Cultivation of medicinal and aromatic plants (MAPs) is persistently increasing due to excessive demands of naturals. Agricultural land and its microbial diversity are primarily adapted to conventional crops, and introduction of MAP and their continuous monocropping may disturb the ecological stability of soil microbiome. Here, the effect of cultivation of MAPs on soil microbial diversity was studied. The aim of the study is to examine the effects of cultivation of MAPs on the possible shift in soil microbial diversity and to restore such impacts by using organic amendments or intercropping. Terminal restriction fragments polymorphism (TRFLP) and next-generation sequencing (NGS) studies showed that of the various selected MAPs, maximal modulation in the soil microbial diversity patterns was noticed in fields of Mentha arvensis and Artemisia annua, and the traces of essential oil/phytochemicals were detected in bulk and rhizospheric soil. In both Artemisia- and Mentha-cultivated soil, the total operating taxonomic unit (OTU) declined in both bulk and rhizospheric soil in comparison to control (Zea mays), but the bacterial richness of Mentha soil was slightly higher than that of control. However, cultivation of Mentha improved the evenness of the microbial community. The inclusion of crops like Sesbania and Chlorophytum and the application of vermicompost (VC) enhanced the microbial richness and evenness, thereby restoring the soil microbial state shift and resulting in higher productivity in the continuously Mentha cropped field. Our study concludes that long-term cultivation of some MAPs may affect the richness but promote the evenness of microbial diversity. The state shift could be restored to some extent, and crop productivity could be enhanced by the inclusion of selected crops and organic manures in cropping systems.
