Determination of water-yield basil function under deficit irrigation conditions and use of nano fertilizer

Naderianfar, M; Ali, Majid; Koohestani, Shapour

doi:10.1556/446.13.2017.4

Cited by 5 publications

(4 citation statements)

References 12 publications

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“…These lower values for evapotranspiration may be attributed to the shorter cultivation period (34 days vs. 71 days) and the location (Belgium vs. Colombia). Nevertheless, the measured values for ET agree sufficiently with the findings reported by other researchers to validate our findings and calculations (Daza-Torres et al, 2017;Naderianfar et al, 2017). Irrigation frequency, timing and duration were identical in '19°C', '23°C' and '25°C' treatments, while the water use over the cultivation period was different.…”

Section: °C 23°c 25°csupporting

confidence: 92%

Effect of substrate temperature on plant growth and transpiration rates, determined by means of soil moisture sensors

Driesen¹,

Proft²,

Lauwers³

et al. 2021

Acta Hortic.

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Basil (Ocimum basilicum L.) is a warm climate plant. The optimal ambient growth temperature for cultivation is 25°C, but commercial cultivation in temperate climate regions often happens at lower temperature. Therefore, the effect of substrate temperature on plant morphology and quality was evaluated. Three different substrate temperatures were studied: 19°C, 23°C and 25°C. Fresh and dry weight of leaves and shoots were significantly higher for higher substrate temperatures. This was accompanied by stem elongation (12.7 ± 0.8 cm at 25°C and 10.4 ± 0.8 cm at 19°C). The results obtained indicate that substrate temperature can affect both morphology and quality of basil plants offering in addition a better plant shelf life in the market chain. The evolution of the volumetric water content (VWC) in the substrate was monitored using Soil Moisture Sensors, which also measured substrate temperature. This allows to calculate the evapotranspiration during the cultivation period and provides an effective tool for irrigation control. Total evapotranspiration was highest in plants from treatment '25°C' (i.e. 692 mL container -1 ) , followed by '23°C' (i.e. 472 mL container -1 ) and '19°C' (i.e. 239 mL container -1 ), which indicates that a higher substrate temperature stimulates evapotranspiration significantly in line with the increased growth under higher substrate temperatures.

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Section: °C 23°c 25°csupporting

confidence: 92%

Effect of substrate temperature on plant growth and transpiration rates, determined by means of soil moisture sensors

Driesen¹,

Proft²,

Lauwers³

et al. 2021

Acta Hortic.

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“…Note that the EUE, expressed as g FW kW −1 , is defined as the ratio of the fresh mass of the sweet basil plant and the electricity consumption of LEDs, and the WUE, expressed in g FW L −1 H 2 O, is defined as the ratio between the leaf fresh mass and the volume of water used. Generally, WUE increases the plant’s fresh mass [ 35 ] and fruit yield [ 36 ]. During the experiments, the air temperature (T air in °C) and relative humidity (RH%) inside each tent were measured using a thermometer (Green May International Ltd, Shenzhen, China), and data were manually logged on every day at 8:00 pm.…”

Section: Methodsmentioning

confidence: 99%

LED Illumination Spectrum Manipulation for Increasing the Yield of Sweet Basil (Ocimum basilicum L.)

Rahman

Vasiliev

Alameh

2021

Plants

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Manipulation of the LED illumination spectrum can enhance plant growth rate and development in grow tents. We report on the identification of the illumination spectrum required to significantly enhance the growth rate of sweet basil (Ocimum basilicum L.) plants in grow tent environments by controlling the LED wavebands illuminating the plants. Since the optimal illumination spectrum depends on the plant type, this work focuses on identifying the illumination spectrum that achieves significant basil biomass improvement compared to improvements reported in prior studies. To be able to optimize the illumination spectrum, several steps must be achieved, namely, understanding plant biology, conducting several trial-and-error experiments, iteratively refining experimental conditions, and undertaking accurate statistical analyses. In this study, basil plants are grown in three grow tents with three LED illumination treatments, namely, only white LED illumination (denoted W*), the combination of red (R) and blue (B) LED illumination (denoted BR*) (relative red (R) and blue (B) intensities are 84% and 16%, respectively) and a combination of red (R), blue (B) and far-red (F) LED illumination (denoted BRF*) (relative red (R), blue (B) and far-red (F) intensities are 79%, 11%, and 10%, respectively). The photosynthetic photon flux density (PPFD) was set at 155 µmol m−2 s−1 for all illumination treatments, and the photoperiod was 20 h per day. Experimental results show that a combination of blue (B), red (R), and far-red (F) LED illumination leads to a one-fold increase in the yield of a sweet basil plant in comparison with only white LED illumination (W*). On the other hand, the use of blue (B) and red (R) LED illumination results in a half-fold increase in plant yield. Understanding the effects of LED illumination spectrum on the growth of plant sweet basil plants through basic horticulture research enables farmers to significantly improve their production yield, thus food security and profitability.

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“…Results showed by using optimum water depth in water limiting condition, water use was decreased by 36% and water productivity and net income per unit of water use was increased by 42% and 23%. Economic assessment of deficit irrigation and its effect on yield and water use efficiency of Basil was conducted by English 1990 method (Naderianfar et al, 2017). Optimization of production, cost and income functions showed that 25% decrease in water use caused maximum water use efficiency and led to the maximum net income per unit of water.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Irrigation Water Depth under Water Limiting Condition

Kamali

Ansari

Nazari

2021

Preprint

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Water productivity is a major challenge in all agricultural regions and despite the use of pressurized irrigation system, it has not increased as expected in Iran. In addition, in spite of water shortage in Iran, gardeners because of lack of knowledge in economic consequences do not welcome deficit irrigation and irrigation scheduling. To this end, optimization of irrigation water depth in an orange orchard was conducted for two irrigation scheduling methods (with and without 4 days irrigation frequency) under water and land limitations conditions by mathematical analysis of production and cost functions. Then, their effect on the net income by changing in water and fruit price was assessed. Production and cost functions were developed based on two scenarios of applied water including only irrigation water depth and irrigation water depth plus rainfall. According to results, when water is limiting, by using the optimum water depth (Ww), 26% of irrigation water use can be saved that causes only 3–4% decrease in the net income per unit of land and 16% increase in the net income per unit of irrigation water. In addition, when water limiting is serious, using 46% deficit irrigation (Wew) is more useful and resultes the highest water productivity, even though it causes 14–17% decrease in the net income per unit of land. However in water limiting condition, if land is not limiting, using Wew causes the maximum net income per unit of land even 50–60% more than full irrigation. Moreover, using the optimum water depths in water limitation conditions (Ww and Wew) increases the water productivity 26–47% relative to full irrigation. On the other side, the net income and the amount of optimum water depths are not sensitive to the price of water at the present value of water. However, they are highly sensitive to the price of fruit. Furthermore, having an irrigation schedule causes 27% increase in the net income per unit of land. According to positive effects of deficit irrigation and irrigation scheduling on the water productivity and the income, they are highly recommended for addressing water scarcity in Iran.

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Determination of water-yield basil function under deficit irrigation conditions and use of nano fertilizer

Cited by 5 publications

References 12 publications

Effect of substrate temperature on plant growth and transpiration rates, determined by means of soil moisture sensors

Effect of substrate temperature on plant growth and transpiration rates, determined by means of soil moisture sensors

LED Illumination Spectrum Manipulation for Increasing the Yield of Sweet Basil (Ocimum basilicum L.)

Optimization of Irrigation Water Depth under Water Limiting Condition

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