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The influence of elevated CO2 concentrations and UVB radiation in antioxidant activity of selected Chenopodium quinoa varieties
Get PDFEcosystems have been affected by climate change. Both agriculture and environmental changes are correlated with various features since climate change is the main cause of abiotic and biotic stress, which affects crop plants. Climate change and its severe impact on plant productivity showed great intensity due to the effects of abiotic stress. In the present investigation, we selected two quinoa varieties to study the response to future climatic factors such as eCO2, enhanced UVB radiation, and UVB+eCO2 combined effects in open-top chambers in the hot climate of the UAE. The treatments were administered for 90 days in the hot UAE weather conditions and the experiment was carried out in a transparent OTC facility. The response of the studied quinoa varieties was measured by analyzing their non-enzymatic antioxidant and antioxidant enzyme activities. Our findings showed that quinoa varieties are suitable as industrial crops for their levels of antioxidants under stimulating climatic conditions because the quantity and quality of their yield have not been affected. Based on the results obtained in the present investigation, further study is warranted for screening more varieties with the addition of climate change factors such as temperature and humidity to find more tolerant varieties of quinoa suitable for future climatic conditions
Phytosterol Composition in the Oil of Bi-clonal Seed Stocks of Tea (Camellia sinensis L.) in North East India: Phytosterol in tea seed oil
No full textThe phytosterols are naturally occurring, physiologically active substances found in foods of plant origin. In present study, the phytosterols profile of four bi-clonal tea seed stock oils viz., TS 462, TS 464, TS 491, and TS 506 released from Tocklai are presented. Phytosterols were evaluated using GC-FID. Among the phytosterols, 24-methylene cycloartan-3-ol was recorded as the most abundant sterol in tea seed oil, accounting for 31% of total phytosterols. Results showed that the majority of the sterol differences were significant (p 0.05). TS 506 has the highest 24- methylene cycloartan-3-ol (476.03.7 mg kg-1) followed by TS 491 (475.97 mg kg-1). β-sitosterol, cycloartenol, canophyllol, lanosterol and campesterol were also present with their contents of 371.03 ± 0.26, 291.38 ± 0.12, 120.44 ± 0.13, 89.12 ± 0.19 and 69.05 ± 0.24 mg kg-1 respectively. The outcomes of the present study provided a foundational understanding of the phytosterols profiles of the four bi-clonal tea seed oils and highlighted their similarities and differences
Customized fertilizers for higher yield and income: Evidences from on-farm validation in coconut – tuber crop intercropping system
Get PDFFifteen on-farm experiments were conducted in tropical tuber crops intercropped in coconut gardens in Thiruvananthapuram, Kollam and Pathanamthitta districts, Kerala, during 2018-2021 for the validation of customized fertilizers formulated from on-station developed Site-Specific Nutrient Management (SSNM) practices. The validation experiments were done under the aegis of ICAR-Central Tuber Crops Research Institute, Thiruvananthapuram, in a project funded by Coconut Development Board, Kochi, Kerala.Three treatments viz., T1: SSNM technology using customized fertilizers (CF) (SSNM), T2: present POP recommendation (POP) and T3: farmer's practice (FP) was evaluated in cassava, elephant foot yam and greater yam intercropped with coconut. System productivity and profitability were worked out for the different treatments based on yield and income from coconut and tuber crops in the respective treatments. Pooled analysis indicated that the coconut yield under intercropping with tuber crops under SSNM using CF was higher by 12-23% in comparison to coconut monocrop maintained unscientifically by the farmers. Tuber yield under CF proved superior over POP by 9.3% and FP by 37.4%. On an average, the net income from coconut-tuber crop intercropping system under SSNM using CF was ₹ 270396 per ha, whereas it was ₹ 198047 in POP and ₹146358 in FP and significantly outperformed sole coconut (₹ 7764).Thus, the results of the validation experiments indicated that the use of customized fertilizers in tuberous intercrops offered resilience with higher system productivity and profitability from coconut gardens
Influence of ZnO and TiO2 nanoparticles in the establishment and growth of in vitro callus cultures of coffee
Get PDFIntegrating genetic markers and adiabatic quantum machine learning to improve disease resistance-based marker assisted plant selection
Get PDFThe goal of this research was to create a more accurate and efficient method for selecting plants with disease resistance using a combination of genetic markers and advanced machine learning algorithms. A multi-disciplinary approach incorporating genomic data, machine learning algorithms and high-performance computing was employed. First, genetic markers highly associated with disease resistance were identified using next-generation sequencing data and statistical analysis. Then, an adiabatic quantum machine learning algorithm was developed to integrate these markers into a single predictor of disease susceptibility. The results demonstrate that the integrative use of genetic markers and adiabatic quantum machine learning significantly improved the accuracy and efficiency of disease resistance-based marker-assisted plant selection. By leveraging the power of adiabatic quantum computing and genetic markers, more effective and efficient strategies for disease resistance-based marker-assisted plant selection can be developed
Report on association of plant parasitic nematodes in large cardamom (Amomum subulatum Roxb.) at Sikkim, Himalaya region of India: Plant parasitic nematodes in large cardamom in Sikkim
No full textLarge cardamom (Amomum subulatum Roxb.), is a major cash crop grown in Sikkim Himalaya region. The crop is found to be affected by many pests (insects and diseases); which hinders the production, productivity as well as quality of the produce. Based on symptoms in this crop, similar to nematode infestation, soil and root samples were collected from the rhizosphere of different large cardamom fields and analyzed for presence of nematodes. Laboratory analysis revealed the association of six nematode species with large cardamom viz., Meloidogyne incognita, Helicotylenchus spp., Hoplolaimus sp., Tylenchorhynchus annulatus, Pratylenchus sp. and Macroposthonia spp., of which Meloidogyne incognita and Pratylenchus sp. were recorded in roots also and the percentage of occurance was 59.09. Apart from Meloidogyne incognita, all other five nematode species were recorded for the first time in large cardamom. Helicotylenchus spp. was the dominant genera among the six genera with 50% occurrence, 61.56 % relative abundance and 60 nematodes per 200 cc soil
Genetic variability analysis in elite black pepper genotypes using morpho-physiological and yield-attributing traits : Genetic variability analysis in black pepper
No full textThe genetic variability in selected 21 black pepper accessions was analyzed based on desirable drought-tolerant and susceptible characteristics using principal component and cluster analyses. The experiment was conducted at ICAR-Indian Institute of Spices Research, Experimental farm, Peruvannamuzhi, Kozhikode using a randomized block design with four replications. Morphological, physiological and yield contributing traits were studied. The traits examined showed a comprehensive range of variability. The principal component and UPGMA clustering analyses were employed to assess the proportional contribution of various traits and grouped the genotypes, respectively. The first principal component was responsible for the highest variation (30.87%) in the yield-related characteristics, which were positively correlated with each other and correlated negatively with the morphological characteristics and stomatal frequency. Separate clusters were formed for the genotypes that displayed drought-tolerant characteristics (cluster 2 and 3) and those that showed susceptible characteristics (cluster 1). The results indicated that the analysed black pepper genotypes have significant genetic variability among them which may be helpful for identification of genotypes with desirable drought tolerant characteristics. Accessions 7211 (cluster 2), 1495, 1343 and 4132 (cluster 3) showed characteristics that make them potentially drought tolerant while the accessions 5717 and 4064 (cluster 1) showed drought susceptible traits
Correlation between circulating cortisol and indicators of stress and oxidant stress during the preslaughter operations in camels
Get PDFIn livestock, pre-slaughter stress begins at the farm or market, continues during transport and upon arrival at the slaughterhouse, ending at slaughter. In this investigation, a survey was conducted in the slaughterhouse of Casablanca in Morocco to record the duration of the preslaughter operations and the frequency of urination in camels. Two groups of camels were constituted, the least stressed animals (Group I, n= 12) and the most stressed animals (Group II, n= 12). Group I animals had a waiting time before loading ≤ 24 h, a loading time ≤ 15 min, an unloading time ≤ 5 min, a water and food deprivation time before slaughter ≤ 24 h, a duration of accompaniment to the slaughter room ≤ 11 min and a frequency of urination during this accompaniment < 3 times. Those in group II had higher duration and frequency values for the same parameters. In addition, serum stress [cortisol (COR)], oxidant stress biomarkers [malondialdehyde (MDA)] and activities of catalase (CAT) and superoxide dismutase (SOD) were analyzed in both groups, and correlations between these biomarkers and the durations of various preslaughter operations and the frequency of urination were established. The most stressed camels (G II) showed high serum concentrations of COR and MDA, and low CAT and SOD activities by comparison to the less stressed camels (G I) (P<0.05). Significant correlations were recorded between COR, MDA, CAT and SOD, and the durations of various preslaughter operations, and between COR and the frequency of urination
Effect of heavy metals on phenylpropanoid biosynthesis in Euonymus alatus
Get PDFThe productivity of the phenylpropanoid biosynthesis pathway in plants varies depending on the type of stress. In this work, we looked into how different phenylpropanoid chemicals accumulated in Euonymus alatus following exposure to different concentrations of CuCl2 (0.1, 0.5, and 1 mM), HgCl2 (0.1, 0.5, and 1 mM), and NiSO4 (10, 50, and 100 mM). We analyzed some of the individual phenolic chemicals by high-performance liquid chromatography (HPLC). In nearly all cases, rutin showed the largest concentration among the phenylpropanoid chemicals, followed by epicatechin, sinapic acid, p-coumaric acid, trans-cinnamic acid, ferulic acid, and caffeic acid. However, due to the change in the concentration of the heavy metals, the amount of phenylpropanoid changed. The highest accumulation of phenylpropanoid was documented in 0.1 mM CuCl2, whereas it was reduced in 1 mM HgCl2 exposed plants. These findings unequivocally demonstrate that the phenylpropanoid metabolic pathway took part in the heavy metal tolerance process, which shielded E. alatus from the oxidative damage brought on by heavy metals. Thus, under a variety of environmental stress situations, this species with a high tolerance to heavy metals may survive
Ethno-veterinary study of medicinal plants in Charkhi Dadri district of Haryana, India
Get PDFEthno-veterinary medicinal plants are important as they are used extensively in many rural areas of the world where people heavily rely on traditional herbal treatments to treat their domestic animals. Indigenous herbal remedies utilized for centuries to keep animals healthy and verbally passed down through the generations. Charkhi Dadri is a district of Haryana situated in the Trans-Gangetic Plains area of India. A total of 45 distinct medicinal plants were studied from 31 families to explore their ethno-veterinary uses of which herbs comprised the majority of the plants followed by trees, shrubs, and climbers. The seeds, leaves and whole plants are the most popular plant parts used. The people can use the documentation of this native knowledge to promote the adoption of traditional methods for treating livestock problems since time immemorial. The findings of this study demonstrate the viability of traditional medicine, which primarily relies on the usage of medicinal herbs to provide for the healthcare needs of cattle in the Charkhi Dadri District of Haryana. The information gathered from the region’s livestock farmers may also utilize to manage the nation’s system for caring for livestock and enhance the quality of life in humans