Planting time

This research paper addresses scheduling issues that arising in the dyeing plant, for the product of shoelaces with various restrictions such as color, machines resource and the demand uncertainty.

8p viling 11-10-2024 0 0   Download

The main goal of this study is to evaluate the effects of bulb treatment regimens (temperature, duration, and wrapping materials) on the growth and flowering of Hippeastrum hybridum cv. ‘Cam Tu’. The results could be used as the fundamental knowledge to control the expected flowering time of amaryllis.

7p vibecca 01-10-2024 2 1   Download

The synthesized complexes were tested for the ability to stimulate growth and improve productivity for Thai cucumber. The study results showed that the complexes reduced the growth time of the plants and increased the yield by > 20%. Yields of cucumbers sprayed with rare earth tartrate complexes reached ~62 tons/ha and increased by 20% compared with control samples.

6p vikwong 29-09-2024 2 1   Download

Distichochlamys citrea (DC) is an endemic ginger species used in treating associatedheart diseases in traditional medicine in Vietnam. However, scientific evidence to support the local use of this plant was limited. The present study aimed to investigate the antioxidant and antithrombotic activities of D. citrea extracts for the first time. The antioxidant activity of DC extracts was assessed by scavenging DPPH radical and measuring their total phenolic content (TPC). The antithrombotic activity was evaluated by inhibiting platelet aggregation and prolonging blood coagulation.

17p xuanphongdacy06 18-09-2024 3 1   Download

Model Predictive Control (MPC) refers to a class of algorithms that optimize the future behavior of the plant subject to operational constraints. The merits of the class algorithms include its ability to handle imposed hard constraints on the system and perform on-line optimization. This thesis investigates design and implementation of continuous time model predictive control using Laguerre polynomials and extends the design approaches proposed in to include intermittent predictive control, as well as to include the case of the nonlinear predictive control.

162p runthenight07 01-03-2023 9 4   Download

Stevia rebaudiana is a medicinal plant recommended to diabetic or obese patients as an alternative sweetener owing to its low-calorie property. Previous studies have found that the stevioside level is highest at the time of flower bud formation and lowest at the time of preceding and following flower bud formation. Hence, this study aims to identify the genes involved in the flowering of local S.

10p thiencuuchu 27-11-2021 13 1   Download

Objectives of the study: Determination of technical parameters such as variety, nutrition, EC, pH, planting density and harvest time, which are suitable for growth, quality of spinach grown on recirculating hydroponic systems. From there, evaluation the effects of using artificial light (luminescence spectrum and light intensity) on the growth, yield and quality of spinach grown on recirculating hydroponic systems indoor.

26p thebadguys 08-06-2021 26 4   Download

Objectives of the dissertation: Research on the degradation process of PE films containing prooxidant additives and recycled polyethylene. After that, preparing plant polybags with different time of degradation.

27p extraenglish 24-05-2021 25 4   Download

Objectives of study: To determine the distribution of mangrove plant species and structure of forest, quantitative analysis of plant diversity and calculate carbon storage in Con Ong Trang; as well as to analyse the impact of main ecological factors to structure, diversity and distribution of mangrove plants following space and time periods.

26p extraenglish 24-05-2021 26 3   Download

Optimazize the in vitro Ngoc Linh ginseng lateral root culture and multiplicate the root biomass is more stable and higher in bioreactor system. Determine and evalute the effect of different types, and concentrations of five elicitors (SA, JA, ABA, CHN và YE) on producing saponin compounds. Next, combine in various types of elicitors to enhance effectiveness of the saponin accumulation, and determine the best elicitation time to develop the highest saponin in LRs of Ngoc Linh từ ARs in vitro.

27p nguathienthan12 23-05-2021 16 3   Download

To determine the distribution of mangrove plant species and structure of forest, quantitative analysis of plant diversity and calculate carbon storage in Con Ong Trang; as well as to analyse the impact of main ecological factors to structure, diversity and distribution of mangrove plants following space and time periods.

26p capheviahe27 23-02-2021 27 4   Download

This study aims to assess the effect of three plant growth regulators, naphthyl acetic acid (NAA), indole-3-acetic acid (IAA), and indole-3 butyric acid (IBA), on the root formation of Actinidia latifolia cuttings. At the same time, seed germination and the effect of different soil and coir mixtures on the growth of kiwifruit seedlings were tested in the nursery.

11p nguaconbaynhay10 19-02-2021 20 3   Download

The research using some advanced, environmentally friendly materials such as water-absorbing polymers and soil-binding polymers in potting medium is also a new direction to improve water retention. The study of manufacturing polybags with different degradation time combined with the use of SAP and PAM in substrates of pots to improve some features of the current nursery.

27p larachdumlanat129 20-01-2021 20 2   Download

Response surface methodology was applied to optimize the extraction of phenolic compounds from fresh Pouzolzia zeylanica plant using hot water as a solvent. A central composite design (CCD) in form (23+star) was used to investigate the effects of two independent variables, namely, extraction temperature (70 to 90oC) and extraction time (20 to 40 min).

10p larachdumlanat129 19-01-2021 19 2   Download

In this study, we investigated four factors to improve the hairy root induction in Urena lobata L. These factors include: age of plant (15-day-old in vitro plants, 45-day-old in vitro plants and after two subculture generations plants), different parts of plant (roots, stems, and leaves), infection time (10, 20 and 30 minutes), and culture medium (Murashige and Skoog (MS), Gamborg B5 medium (GB5) and Woody plant medium (WPM)).

8p larachdumlanat127 02-01-2021 6 2   Download

Smilax glabra Roxb. is a medicinal plant of Vietnam to treat several diseases such as: Piercing pain in the bones, detoxicating, scabies, nephritis, cystitis, syphilis,... From ethanol extracts of Smilax glabra Roxb. cultivating in Thai Nguyen, 5 compounds were isolated and structurally elucidated in the first time by various spectral methods, such as IR, MS, 1H-NMR, 13C-NMR, DEPT, HSQC, HMBC.

9p larachdumlanat127 20-12-2020 19 3   Download

In recent time, sweet corn (Zea mays L.) is gaining popularity as a healthy snack item, both in urban & rural areas due to its high sugar and low starch content. There are diversified reports regarding effect of plant nutrients on growth and yield of sweet corn.

7p nguaconbaynhay7 15-08-2020 32 2   Download

Preservation of fruits, vegetables, and food are essential for keeping them for a long time without further deterioration in the quality of the product. Solar drying has been used since time immemorial to dry plants, seeds, fruits, meat, fish, wood, and other agricultural, forest products. The aim of the dryer is mainly for the welfare of the marginalized and poor farmers those who can’t afford hi-tech facilities and equipment’s to preserve their agricultural products. Drying of Safed Musli (Chlorophypum boribilianum) in open sun drying require more time and affected its quality.

15p nguaconbaynhay6 24-06-2020 18 3   Download

Effect of Planting Time, Fertility Level and Plant Population on Development, Yield, Nutrient Uptake and Quality of Winter Popco A popcorn (Zea mays everta Sturt.) composite variety, namely V.L. Amber was assessed for their potential role as winter crop in the management at Agricultural Research Farm of BHU, Varanasi, India, under late sown condition of 2009-10 and 2010-11, respectively. The three date of sowing i.e.

7p nguaconbaynhay6 24-06-2020 19 1   Download

The main objective of this study was to examine the efficacy and capacity of using hydroponic systems in municipal pollutant removal at household scale. Three pilot scaled hydroponic systems [dimension for each system: 4.5 m (L) x Φ 114 mm] were installed to investigate the optimal age of vegetable, planting density and retention time for household wastewater treatment, respectively.

6p tomhiddleston 27-05-2020 35 2   Download