Production and nutritional value of wheat and triticale cultivars in different harvest times in the Minas Gerais semiarid

The objective of the present study was to evaluate the productive performance and nutritional value of forage of wheat and triticale cultivars at different harvest times in the semiarid region of Minas Gerais. Eight wheat cultivars and two triticale cultivars harvested at three stages of plant development were evaluated: Rubberization, grain at the stage of soft mass and harvest maturation. The experimental design adopted was a randomized block in a factorial scheme 10 × 3, with three replicates, 10 cultivars and 3 developmental stages for plant collection. The main agronomic characteristics and nutritional value were evaluated of forage of the cultivars under study. The study demonstrated the potential of wheat and triticale cultivation for forage in the semiarid region of Minas Gerais. The mean dry matter yield of wheat cultivars was 5.90 t ha-1, 7.85 t ha-1 and 7.98 t ha-1 and triticale 6.47 t ha-1, 9.97 t ha-1 and 10.5 t ha-1 for the rubber harvesting stages, grain at the stage of soft mass and harvest maturation, respectively. For the average crude protein content, the wheat cultivars showed 15.07%, 9.13%, 10.60% and the triticale cultivars showed 14.4%, 9.31% and 10.05% for the harvest stages of rubber formation, grain at the stage of soft mass and harvest maturation, respectively. When evaluating the average levels of total digestible nutrients, the wheat and triticale cultivars showed an average of 48.90% and 48.67% in the rubber harvesting stage and 42.68% and 49.60% in the grain in the mass stage suave and 44.43% and 42.90% at harvest maturation. The highest yield of digestible dry matter was observed with the cultivars harvested at the grain stage at the soft mass stage. Triticale IPR 111 and Wheat IPR PANATY had greater productive potential and better nutritional quality for use as forage.

Photovoltaic Power Plant Collection and Connection to HVDC Grid with High Voltage DC/DC Converter

Photovoltaic (PV) power plant collection and connection to a high voltage direct current (HVDC) grid has many advantages. Compared with the traditional AC collection and grid-connection scheme, it can reduce the power conversion links and improve the system efficiency. As one of the most important devices in the application of a PV HVDC collection and grid-connection system, a high voltage, large capacity, high step-up ratio DC/DC converter is the critical technology. A DC/DC converter scheme based on a boost full bridge isolated power module cascaded in input parallel output series (IPOS) structure is proposed to meet the technical requirements of PV power conversion with high voltage, large capacity, and high step-up ratio. The operation mode of the power module is analyzed, the soft switching method is proposed, and the constraint to realize the soft switching of the power module is deduced. Aiming to resolve the problem of multi-module voltage and current equalization in a cascaded DC/DC converter, a distributed module equalization control strategy is proposed to realize the reliable operation of a power module and converter. A 5 kV/80 kW standard power module is developed, the DC/DC converter experimental platform is built, and the proposed system scheme and control strategy are verified by experiments. Based on a 14-power module input parallel output series connection, a ±30 kV/1 MW PV DC/DC converter is developed, a ±30 kV PV HVDC collection and grid-connection demonstration system is established, and the experimental test is completed to realize the stable operation of the system.

Microclimate-based mortality analysis of the Cibodas Botanic Gardens plant collection

Despite the routinely conducted treatment and maintenance of garden plant collection, the monthly mortality figures of the Cibodas Botanic Gardens (CBG) plant collections remain significant. It is presumed that the microclimate has a crucial influence on plant survivorship in the field. This study aimed to analyze the effect of microclimate conditions on the mortality rate of the CBG plant collection. The study was conducted by correlating the number of mortal plants with CBG monthly microclimatic conditions from 2017 to 2018. The analyzed microclimate parameters were temperature, relative humidity, precipitation, wind velocity, and solar radiation. The multiple regression modeling, t-test, and Pearson correlation test (r) were utilized to measure the level of significance of the correlation (α = 0.05). The findings were shown that the maximum wind velocity was the primary unit correlated to the number of mortality. The correlation was strong positive (r = 68.8%), and significant (p-value α). We suggested anticipating the disadvantages influences of strong wind supported by other extreme microclimate units, such as heavy rain. These events frequently caused high damage to the tree and other plant collections. These are expected to be taken into a consideration by the CBG operator and management in order to forecast and mitigate the risks of future plant collection losses.

Diet and Nurturing Behavior of Asian Elephant (Elephas maximus Linn.) in Some Selected Habitat of Northern Odisha, India

The Asian elephant's (Elephas maximus) nurturing behavior with food fondness was deliberate in Northern land of Odisha during February 2017 to December 2019.The foremost objective of the existing survey is to document the forage plant species intake by Asian elephants. Though the respective study area harbors a noble quantity of plant types, only 146 species were identified as fodder plants which have been consumed by elephants in this survey period. The food path of elephant was identified as branch flouting, bark flaking, twig infringement, flower tugging and stem twisting and uprooting in different regions of study area throughout altered seasons. Adaptation of principally browsing strategy with that of grazing around the year was related to seasonal variation of diet plants as per the availability. This survey elucidates that total 146 species of forest plants belongs to 55 Families and 19 species of non-forest plant belongs to 8 Families. The extensive consumable plant species by elephants i.e. Aegle marmelos (Bel), Careya arbore (Kumbhi), Bauhinia racemosa, Kydia calycina, Bauhinia vahli(Siali), Helicteres isora(Orola), Madhuca indica (Mahulo), Zizyphus mauritiona (BaraKoli), Artocarpus heterophyllus (Panasa), Shorea robust(Sal),Limonia acidissima (Kendu), Smilax zeylanica (Muturi) and Diosporea species. They were affectionate fruits of Mangifera indica and Artocarpus heterophyllus in summer, bamboo during rainy and Madhuca indica during winter. Minuscular analysis of elephant’s dung showing an extraordinary variation in typical dicot- monocot proportion recommended that the food plant collection of elephant was extremely seasonal and unscrupulous.

Current Evaluation of the Tubiflora acaulis Kuntze (Acanthaceae): Pharmacognostical, Preliminary Phytochemical Investigation and Antioxidant Activity

Aim: The present work was aimed at evolving with Pharmacognostical, Preliminary Phytochemical investigation and Antioxidant activity of plant Tubiflora acaulis Kuntze (Synonym Elytraria acaulis) belong to family Acanthaceae. Study Design: The permission was taken from Maharashtra State Biodiversity Board, Nagpur for plant collection, collected and authenticated and evaluated Pharmacognostical character including morphological and microscopical as well as Physical Evaluation, phytochemical process and antioxidant activity. Place and Duration of Study: The study was carried out at PSGVPMs College of Pharmacy, Shahada, Dist- Nandurbar (MS) Affiliated to KBCNMU, Jalgaon University, Jalgaon (MS), during 2019-21. Methodology: The plant material firstly taken permission from Maharashtra State Biodiversity Board, Nagpur for plant collection, collected and authenticated and evaluated Pharmacognostical character including morphological and microscopical as well as Physical Evaluation, extraction by successive solvent method, phytochemical process and antioxidant activity of Tubiflora acaulis Kuntze (Acanthaceae). Results: The macroscopical and microscopical studies revealed useful diagnostic features. Qualitative phytochemical analyses revels that Tubiflora acaulis Kuntze leaf separately for different extract like pet. Ether, chloroform and methanol and contained the secondary metabolites. The quantitative phytochemical analysis showed the presence of secondary metabolite. The extract of Tubiflora acaulis showed the antioxidant activity by DPPH, Nitric oxide and reducing power assay. Conclusion: The findings of the current research indicated that the ethanol leaf extract of Tubiflora acaulis Kuntze (Acanthaceae) had presence of secondary metabolites and potent antioxidant properties against standard drug.

FEASIBILITY STUDY OF ORNAMENTAL PLANT BUSINESS IN COVID PANDEMIC AT BATURAJA OKU SOUTH SUMATERA

The ornamental plant business is a very profitable and promising venture, made even more so by the fact that there is an ornamental plant trend at the start of 2019. Certain types of ornamental plants can be quite expensive, and some customers are willing to pay a premium for them to add to their ornamental plant collection. As a result, the number of florists has increased, particularly in Baturaja City. During the Covid-19 pandemic, numerous businesses, including ornamental plant businesses, suffered financial losses. Some businesses have been unable to survive due to losses as a result of people's limited purchasing power for ornamental plants. The goal of this research is to determine the viability of the ornamental plant business in Baturaja, especially in the event of a pandemic. In this study, the census method was used, and the saturated sampling method was used for sampling. The analysis was carried out using a feasibility analysis with R/C ratio analysis. In Baturaja, data was gathered from 15 ornamental plant business actors. With an R/C of 1.65, the study's findings indicated that the ornamental plant business in the city of Baturaja would be viable in the event of a pandemic. Keywords: Feasibility study, ornamental plant business, pandemic Covid Abstrak Bisnis tanaman hias merupakan bisnis yang sangat menjanjikan dan menguntungkan, apalagi setelah terjadi trend tanaman hias di awal tahun 2019. Beberapa jenis tanaman hias dapat dijual dengan harga yang tinggi dan konsumen mau membeli dengan harga tinggi tersebut, untuk menambah koleksi. Fenomena ini juga terjadi di kota Baturaja. Selama pandemi Covid-19, banyak bisnis yang merugi, termasuk bisnis tanaman hias. Turun nya daya beli masyarakat juga berpengaruh terhadap bisnis tanaman hias. Membuat para pelaku usaha bisnis ini tidak mampu bertahan karena merugi. Penelitian ini bertujuan untuk menganalisis kelayakan usaha tanaman hias di kota Baturaja khususnya pada masa pandemi Covid-19. Metode yang digunakan dalam penelitian ini adalah metode sensus dan metode penarikan contoh yang digunakan adalah metode acak jenuh. Metode analisis yang digunakan dalam pengolahan data penelitian adalah analisis kelayakan menggunakan R/C ratio. Sedangkan data yang dikumpulkan berasal dari 15 pelaku usaha tanaman hias di kota Baturaja. Hasil penelitian menunjukkan bahwa usaha tanaman hias di kota Baturaja di masa pandemic Covid masih layak untuk terus diusahakan dengan nilai R/C sebesar 1.65. Kata kunci: Analisis kelayakan, bisnis tanaman hias, pandemic Covid

Phytochemical Study and Anti-nutritional Factors in Stems of Dioscorea praehensilis Benth (Dioscoreaceae)

The aim of this research was to find and assay phytochemical compounds and various biological macromolecules of the tender stems of Dioscorea praehensilis benth and evaluate their antioxidant activity and to compare the content of oxalates and cyanogenetic glucosides between raw and cooked tender stems. The plant collection and identification, phytochemical evaluation: phytochemical screening, preliminary (qualitative) analyses and in vitro assays. Phytochemical screening was performed by qualitative methods. The estimation of the content of secondary metabolites was evaluated by spectrophotometry-UV. Antioxidant activity was evaluated using the ABTS and DPPH assays and preliminary composition by the gravimetric method. The results obtained show that the stems of Dioscorea praehensilis are devoid of certain important chemical groups, the flavonoids were not detected and they were rich in total polyphenols (17.22 ± 0.16), tannins (19.32 ± 0.52) and anthocyanins (25.22 ± 0.04). Our extracts showed a lower antioxidant activity than that of positive controls. The samples are rich in carbohydrates and fiber, with low levels of proteins, lipids and ash. Dioscorea praehensilis has a high toxicity in HCN, but after a good cooking of about 1 hour, 99.97% of the cyanide are eliminated and does not have many oxalates. The results obtained show that Dioscorea praehensilis has a high dietary value and can therefore be used as a nutritive food.

Low Frequency AC Transmission for Offshore Wind Power

This paper presents a low frequency ac (LFAC) transmission system for offshore wind power. The LFAC system is interfaced with the main power grid with a cycloconverter. The wind power plant collection system is dc based, and connects to the LFAC transmission line with a 12-pulse thyristor converter. A method to design the system’s components and controls is set forth. Simulation results are provided to illustrate the system’s performance.