scholarly journals The Optimal Harvesting Time of Vaccine-Producing Transgenic Lettuce Cultivated in a Closed Plant Factory

2014 ◽  
Vol 52 (1) ◽  
pp. 57-61 ◽  
Author(s):  
Ken-ichi OKAMURA ◽  
Yoshie MATSUDA ◽  
Kadunari IGARI ◽  
Hirokazu FUKUDA ◽  
Haruhiko MURASE
Keyword(s):  
Optimal Harvesting ◽  
Harvesting Time ◽  
Transgenic Lettuce ◽  
Plant Factory

scholarly journals Growth, Production and Bioactive Content of Several Black Cumin (Nigella sativa L.) Accessions With Different Harvesting Times in a D3 Type Climate Regime

2020 ◽  
Vol 7 (03) ◽  
pp. 104-112
Author(s):  
Septian Dwi Cahyo ◽  
Ani Kurniawati ◽  
Didah Nur Faridah ◽  
Munif Ghulamahdi
Keyword(s):  
American Indian ◽  
Nigella Sativa ◽  
Block Design ◽  
High Plains ◽  
Optimal Harvesting ◽  
Harvesting Time ◽  
Black Cumin ◽  
Mediterranean Countries ◽  
Production Values ◽  
Growth Production

Black cumin (Nigella sativa L.) is a species Ranunculaceae family which grows in the Middle Eastern and Southern Mediterranean countries. Black cumin is also known as habbatus sauda , or kalonji in South Asia. Black cumin seeds are used as spice traditional medicine; the essential oil compound in the seeds has been identified as thymoquinone. Thymoquinone has a potent antioxidant effect, which could protect organs from oxidative damage by generating free radical agents. Indonesia is one of the most geographically diverse country in the world. Some regions have scattered low and high plains, abundant sunlight, evenly distributed rainfall throughout the year, and highly diverse soil types. The purpose of this study was to study the growth, production, thymoquinone and thymol content of several accessions of black cumin with different harvesting time in D3 type climate regimes. The research was conducted from April to September 2019 in Ngadirejo Village, Sukapura District, Probolinggo Regency, East Java with an altitude of 1.680 m above sea level. The experiment used a randomized complete block design with one factor for the vegetative phase, namely accession (“American”, “Indian”, “Kuwait”, and “Slovenian”) and two factors for the generative phase, namely accession and harvesting time. The harvesting time of black cumin was conducted at 6, 7, and 8 weeks after the anthesis. “Indian” and “Slovenian” accession demonstrated the best vegetative growth, whereas “Indian” had the highest capsules number per plant, seeds weight per plant, and the highest estimated production compared to other accessions (603 kg seeds. ha-1). “American”, “Indian” and “Kuwait” accessions are well adapted in D3 type climate. The harvesting time of 7 to 8 weeks from anthesis was shown to be optimal for all accessions. Thymoquinone and thymol content for the four accessions was circa 349.64– 3,030.45 μg. g-1 of seeds and 385.56 – 2,003.46 μg.g-1 of seeds, with potential production values of 0.18 - 1.83 kg.ha-1 and 0.19 - 0.45 kg.ha-1, respectively. The optimal harvesting time to maximize seed production was unaffected by the black cumin accession.

scholarly journals Evaluation of Optimal Harvesting Time Based on Quality Attributes during Growth in Green Soybeans ‘Hukura’ and ‘Yuagari-musume’

2015 ◽  
Vol 14 (1) ◽  
pp. 61-67
Author(s):  
Hiroshi Mizuno ◽  
Saki Hashimoto ◽  
Nina Tanaka ◽  
Tatsuya Yamamoto ◽  
Ryohei Nakano ◽  
...  
Keyword(s):  
Quality Attributes ◽  
Optimal Harvesting ◽  
Harvesting Time

scholarly journals Influence of sowing and harvesting time on productivity and sowing qualities of spring oat sapsan seeds

2019 ◽  
Vol 20 (3) ◽  
pp. 230-237
Author(s):  
O. M. Snigireva ◽  
Yu. E. Vedernikov,
Keyword(s):  
Field Experiment ◽  
Optimal Harvesting ◽  
Structure Parameters ◽  
Physiological Maturity ◽  
Harvesting Time ◽  
Germination Energy ◽  
North East ◽  
Yield Structure ◽  
Weak Negative Correlation ◽  
Increase In Productivity

In 2015-2017 under conditions of Kirov region studies with spring covered oat Sapsan bred in FARC North-East were conducted. The scheme of the first field experiment included four variants by sowing terms –the earliest one (at physiological maturity of soil), and three following variants with 5-day intervals. The scheme of the second field experiment included four variants in harvesting terms – the early one (when grains in the upper half of the panicle are fully matured in 70% of plants), and three following variants with 5-day intervals. On the average during the years of studies the highest productivity was obtained at the second term of sowing – 3.03 t/ha. Indicators of germination energy and germination of seeds harvested in 2015-2017 were decreasing from the first sowing term to the last one. The highest percent of germination and germination energy was in seeds harvested in 2017 – 98.6 and 96.5% respectively; the lowest in 2016 – 92.8 and 90.8%. In 2015-2017 the most significant increase in productivity was noted in the second variant of the harvesting term. From 10 to 15 days delay with harvesting lead to the decrease of yield structure parameters. The best indicators of structure elements were in plants of the second term of harvesting. The study revealed a tendency to decrease in test weight and 1000-grain mass at delay with harvesting for 10 and 15 days as compared with the first term; the most significant decrease – in grain at the second harvesting term (488 g/l and 39.4 g respectively). The research defined a weak negative correlation between the protein content in grain and the amount of precipitations in interphase period "heading – wax ripening" (r = -0.28). On the average during the years of studies, the second sowing term was the most optimal (sowing 5 days after the earliest term). The optimal harvesting term is the second one, when 100% of plants reach the full grain maturity.

Optimal Energy Harvesting From Impulse Trains Using Piezoelectric Transduction

2014 ◽  
Author(s):  
A. A. Kody ◽  
J. T. Scruggs
Keyword(s):  
Power Generation ◽  
Energy Harvesting ◽  
Low Frequency ◽  
Vibration Energy ◽  
Optimal Harvesting ◽  
Linear Quadratic ◽  
Vibration Energy Harvesting ◽  
Linear Quadratic Optimal Control ◽  
Vibration Energy Harvester ◽  
Harvesting Time

In applications of vibration energy harvesting to embedded wireless sensing, the available power and energy can be very low. This poses interesting challenges for technological feasibility if the parasitic losses in the electronics used to harvest this energy are prohibitive. In this study, we present a theory for the active control of power generation in energy harvesters in a manner which addresses and compensates for parasitic loss. We conduct the analysis in the context of a single-transducer piezoelectric bimorph cantilever beam subjected to a low-frequency impulse train. The power generation of the vibration energy harvester is maximized while considering mechanical losses, electrical losses, and the static power required to activate control intelligence and facilitate power-electronic conversion. It is shown that the optimal harvesting current can be determined through the use of linear quadratic optimal control techniques. The optimal harvesting time over which energy should be generated, following an impulse, is determined concurrently with the optimal feedback law. We show that this optimal harvesting time exhibits bifurcations as a function of the parameters characterizing the losses in the system.

scholarly journals Characterisation of Monovarietal Olive Oils Obtained from Croatian cvs. Drobnica and Buza during the Ripening Period

Foods ◽  
2018 ◽  
Vol 7 (11) ◽  
pp. 188 ◽  
Author(s):  
Jasminka Giacometti ◽  
Čedomila Milin ◽  
Fabio Giacometti ◽  
Zlatko Ciganj
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Content ◽  
Total Phenolic ◽  
Optimal Harvesting ◽  
Crop Season ◽  
Northern Adriatic ◽  
Harvesting Time ◽  
Olive Oils ◽  
Ripening Stages ◽  
Olive Cultivars

The aim of this study was the monitoring of the chemical composition of olive oil at different ripening stages to determine the appropriate harvesting time during any given crop season in the northern Adriatic region. For this purpose, from September to November, two Croatian olive cultivars (Drobnica and Buza) were taken from two different olive orchards and for the respective olive oils, prepared on a laboratory scale, the major saponifiable, unsaponifiable and phenolic compounds were determined. Based on the chemical analyses performed, the optimal harvesting time has been set in October for both cultivars. Buza had a higher oleic acid, but lower total sterols, squalene and total alkanols. Compared to the local cultivars, the studied cultivars had a high total phenolic content and antioxidant activity. The antioxidant activity and concentrations of total phenols correlated with α-tocopherol in oil samples taken during the ripening progress. Finally, trace minerals detected in Buza and Drobnica oil differed, which can be an indicator of oxidative stability and authenticity of oils.

INFLUENCE OF COMPONENTS OF BUCKWHEAT CULTIVATION TECHNOLOGY ON PRODUCTIVITY AND QUALITY OF GRAIN

1970 ◽  
pp. 55-58
Author(s):  
I. М. Khanieva ◽  
S. А. Bekuzarova ◽  
L. R. Kushkhakanova ◽  
А. Kh. Tkhaitlov ◽  
А. R. Sabolirov
Keyword(s):  
Extended Period ◽  
Optimal Time ◽  
Mineral Fertilizers ◽  
Optimal Harvesting ◽  
Harvesting Time ◽  
Grain Yields ◽  
Long Time ◽  
Cultivation Technology ◽  
High Yields

Buckwheat is known for its long, time-extended period of the formation and filling and ripening of grains, and besides it is very prone to the scattering of grain. In this regard, one of the most important conditions for collecting high yields of buckwheat without loss is the harvesting of crops in the optimal time. In the production of very frequent situations in which it is necessary to delay harvesting. The purpose of this study was to investigate the causes and establish the dynamics of losses from the shedding of buckwheat grain yields depending on the standstill for 5, 10, 15 days after the onset of the phase of complete ripeness of grains, as well as from the imported mineral fertilizers calculated by the balance method for obtaining pre-planned harvests. It was found that the best values of the 1000 grains mass index are formed in cases with agricultural backgrounds for harvesting 30 centners per hectare, as well as with the optimal harvesting time - 31.5 g, with a delay of 5, 10 and 15 days the value of this indicator decreased by 2.1, 5.5 and 8.5 g, accordingly. The same trend was observed for indicator of weight of seeds per bushel. 15 days delay in harvesting since start of mass ripening reduced the grain content both in the control and in all investigated agricultural backgrounds of nutrition: case No. 1 - from 662 to 627 g / l, №2 - from 688 to 647, №3 - from 689 up to 641 and 4 - from 699 to 643 g / l.

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