22 research outputs found
Synthesis of novel chiral auxiliaries
1666-1669A simple and easy route for
the preparation of the higher homologue of oxazaborolidine namely
dihydrooxazaborin has been reported. Also, the preparations of new bicyclic
oxazaborolidines are reported
A Comparative Study of Organic Cultivation of Trigreens with Vermicompost
The study highlighting the importance of diversifying plant resources, especially for green leafy vegetables, which are rich in essential nutrients and are considered vital for human health. Organic farming is on the rise due to increasing demand for healthier and environmentally friendly food production. The experiment was conducted in Kalakadu village, Tamil Nadu, India, with a focus on the impact of vermicompost on plant growth. The soil type, pH, and nutrient content were analyzed. Vermicompost was prepared by predigesting organic waste and cattle dung slurry. The three selected vegetables were planted in plots with and without vermicompost, and their growth was monitored. The study presents the height parameters and growth data for each of the three vegetables with and without vermicompost. In all cases (Amaranthus, Palak, and Moringa), the height and weight of the plants were significantly higher when vermicompost was added. Statistical analysis, including Pearson correlation and t-tests, confirmed the significance of these differences. The study concludes that vermicompost has a substantial positive impact on the growth and yield of Amaranthus, Palak, and Moringa. The vegetables cultivated with vermicompost demonstrated higher height, weight, and overall growth compared to those without vermicompost
Novel Chiral Switching Ligands for Enantioselective Asymmetric Reductions of Prochiral Ketones
Abstract: The newly developed chiral ligands 1 and 4 show opposite enantioselectivity in the asymmetric reduction of prochiral ketones resulting in the production of either enantiomer depending on the metal complex with high enantiomeric excess
Not Available
Not AvailableOn- farm demonstrations on Trichoderma harzianum were undertaken to empower
farmers and show the potential against root rot complex and wilt disease in major
pulse crops. Accordingly, a project was implemented during 2008-2011 in six
villages with 620 farmers under rainfed conditions of Sumerpur Block, Hamirpur
district in Bundelkhand of Uttar Pradesh. The identified native strain of
Trichoderma harzianum (IPT 31) was multiplied and supplied to farmers for seed
treatment in chickpea, lentil and pigeonpea crops. The results showed that the
overall reduction in plant mortality due to root rot complex over control was 32.1%
and 14.3% in chickpea and lentil, respectively. However, the reduction in wilt
incidence was observed 26.7% in chickpea and 25.9% of lentil. Further, the
percent increase in yield over the control was 16.6% and 12.6% in chickpea and
lentil, respectively. The additional yield in chickpea and lentil from T. harzianum
application was received 1.30 q/ha and 0.93 q/ha with economic gain of
2600
and
2800/ha. The impact of T. harzianum in pigeonpea was observed to a lesser
extent. The availability of soil moisture played an important role in effectiveness of
Trichoderma. The increase in awareness and knowledge on nature, role and
benefits of T. harzianum; methods of application, source of availability and market
price was observed between 20 to 70 percent.Not Availabl
On - farm demonstrations of Trichoderma harzianum in pulse crops under rainfed conditions of Bundelkhand - A case study
On- farm demonstrations on Trichoderma harzianum were undertaken to empower
farmers and show the potential against root rot complex and wilt disease in major
pulse crops. Accordingly, a project was implemented during 2008-2011 in six
villages with 620 farmers under rainfed conditions of Sumerpur Block, Hamirpur
district in Bundelkhand of Uttar Pradesh. The identified native strain of
Trichoderma harzianum (IPT 31) was multiplied and supplied to farmers for seed
treatment in chickpea, lentil and pigeonpea crops. The results showed that the
overall reduction in plant mortality due to root rot complex over control was 32.1%
and 14.3% in chickpea and lentil, respectively. However, the reduction in wilt
incidence was observed 26.7% in chickpea and 25.9% of lentil. Further, the
percent increase in yield over the control was 16.6% and 12.6% in chickpea and
lentil, respectively. The additional yield in chickpea and lentil from T. harzianum
application was received 1.30 q/ha and 0.93 q/ha with economic gain of
2600
and
2800/ha. The impact of T. harzianum in pigeonpea was observed to a lesser
extent. The availability of soil moisture played an important role in effectiveness of
Trichoderma. The increase in awareness and knowledge on nature, role and
benefits of T. harzianum; methods of application, source of availability and market
price was observed between 20 to 70 percent
Not Available
Not AvailableRhizosphere microbial communities are dynamic and play a crucial role in diverse biochemical processes and nutrient cycling. Soil type and cultivar modulate the composition of rhizosphere microbial communities. Changes in the community composition significantly alter microbial function and ecological process. We examined the influence of soil type on eubacterial and diazotrophic community abundance and microbial metabolic potential in chickpea (cv. BG 372 and cv. BG 256) rhizosphere. The total eubacterial and diazotrophic community as estimated through 16 S rDNA and nifH gene copy numbers using qPCR showed the soil type influence with clear rhizosphere effect on gene abundance. PLFA study has shown the variation in microbial community structure with different soil types. Differential influence of soil types and cultivar on the ratio of Gram positive to Gram negative bacteria was observed with most rhizosphere soils corresponding to higher ratios than bulk soil. The rhizosphere microbial activities (urease, dehydrogenase, alkaline phosphatase and beta-glucosidase) were also assessed as an indicator of microbial metabolic diversity. Principal component analysis and K-means non-hierarchical cluster mapping grouped soils into three categories, each having different soil enzyme activity or edaphic drivers. Soil type and cultivar influence on average substrate utilization pattern analyzed through community level physiological profiling (CLPP) was higher for rhizosphere soils than bulk soils. The soil nutrient studies revealed that both soil type and cultivar influenced the available N, P, K and organic carbon content of rhizosphere soil. Our study signifies that soil type and cultivar jointly influenced soil microbial community abundance and their metabolic potential in chickpea rhizosphere.Not Availabl
Not Available
Not AvailableAn experiment was conducted to investigate the role of Antioxidant Enzymes (AOE) in Salicylic Acid (SA) induced salt-stress tolerance during chickpea (Cicer arietinum L.) seed germination at ICAR-Indian Institute of Seed Science, Mau during 2018. Results showed the differential germination performance of salt-sensitive (PG 186) and salt-tolerant (CSG 8962) chickpea cultivars under three levels (0, 75, 150 mM NaCl) of salt stresses. Salt stress adversely affected the seed germination and traits of early seedling establishment in PG 186 cultivar than in CSG 8962. Sand matrix priming (SMP) of seeds using SA @ 150 ppm improved the germination (up to 2 times) and other seed quality parameters in sensitive cultivar under higher (150 mM NaCl) salt-stress level. Further investigating the role of SA on modulating AOE, a negative influence of SA on major AOE (POX, CAT and GR) was observed in cotyledons of PG 186 genotype under high salt stress. However, the level of APX was observed to be constitutively higher in tolerant CSG 8962 chickpea genotype. The summary of results suggested that, SA alleviates oxidative stress through reducing major AOE in cotyledon to improve chickpea seed germination.Not Availabl