Progress of Cryogenics and Isotopes Separation

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The National Conference with international participation on New Cryogenic and Isotope Technologies for Energy and Environment - EnergEn 2018 is organized by the National Research-Development Institute for Cryogenic and Isotopic Technologies - ICSI Rm. Valcea with the scientific participation of the University of Pitesti and the University of Craiova and will be held at Baile Govora, in 2018.

EVALUATION OF THE DEUTERIUM MODULATION POTENTIAL OF LEAD STATUS ON Zea mays ORGANOGENESIS AND GROWTH Print

EVALUATION OF THE DEUTERIUM MODULATION POTENTIAL OF LEAD STATUS ON Zea mays ORGANOGENESIS AND GROWTH

Gallia Butnaru1*, Ioan Sarac1, Gheorghe Titescu2, Horia Butnariu1**

 

 1Banat University of Agricultural and Veterinary Medicine from Timisoara, Romania 

 

 

ABSTRACT 

                   The experiment was carried out in lab conditions [germination and embryogenesis], and in field in 2011 and 2012. In controlled lab conditions, the results pointed out the interaction among genotypes, D concentration associated with lead. The change in deuterium concentration associated with lead affected germination, root and coleoptile & embryo-leaves formation. The germination on three maize lines [521, 555, 522] was significantly different, pointing out the genotypes’ different strong response. The most sensitive was the genotype 555. It was significantly reduced in comparison to 521 and 522 [d= - 31.18 and d=34.17 > 0.01]. The weak particularity continued along the entire life cycle. Generally the germination was significantly repressed by lead amount [50, 100 and 200 ppm]. The association between deuterium depleted water [30 ppm] and a high amount of lead [200 ppm] was an exception - the germination was significantly stimulated [d=20 and d=16.7 > 0.01]. The low content of D revealed a favorable modulation effect. The embryonic organogenesis was slow. The root growth was significantly repressed by the low amount of D [d= - 0.23 > 0.5]. The coleoptiles’ growth was not influenced by D&Pb. The plantlets’ adaptation in field conditions was dramatically reduced. More than 60% of them could not survive. The comparison between 2011 and 2012 of the plant’s growth and their traits emphasized the capacity of restoring their repressed status. In comparison to D 145 ppm the D-30 the plant’s characteristic elements were superior developed. The yield quality was differently influenced by D&Pb amount. The 1000 kernel weight was higher on D-30 plants [241>239 g]. The protein content was higher when the seeds were germinated in low amount of D. On the other hand, the oil and starch synthesis were repressed. We consider that D content is “working” as a modulator in different synthesis pathways.

                 KEYWORDS: amount of D & lead concentration; germination, organogenesis, plant growth, plant’s trait.



*Corresponding author: Gallia Butnaru,  e-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

2National Institute for Research and Development for Cryogenic and Isotopic Technologies – ICIT RM. Valcea

* Academy of Romanian Scientists;  ** Academy of Agricultural and Forestry