The influence of temperature on seed germination in some species of medicinal and aromatic plants
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DRUŢU, AdinaCătălina, POPA, Lorena-Diana, BUBURUZ, AlexandraAndreea, POCHISCANU, Simona-Florina, POMOHACI, TraianIoan. The influence of temperature on seed germination in some species of medicinal and aromatic plants. In: Conservation of plant diversity, Ed. 3, 22-24 mai 2014, Chișinău. Chișinău: Gradina Botanica (Institut), 2014, Ediția 3, pp. 73-74. ISBN 978-9975-62-370-4.
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Conservation of plant diversity
Ediția 3, 2014
Simpozionul "Conservation of plant diversity"
3, Chișinău, Moldova, 22-24 mai 2014

The influence of temperature on seed germination in some species of medicinal and aromatic plants


Pag. 73-74

Druţu AdinaCătălina, Popa Lorena-Diana, Buburuz AlexandraAndreea, Pochiscanu Simona-Florina, Pomohaci TraianIoan
 
Staţiunea de Cercetare-Dezvoltare Agricolă Secuieni
 
Disponibil în IBN: 18 mai 2019



Teza

Introduction Because many of the seeds of medicinal and aromatic plants spring up very slowly and unevenly , at A.R.D.S. Secuieni were experienced in laboratory conditions, speeding up and improving germination in the species Hypericum perforatum L., Echinacea purpurea L. (Moench.) and Salvia offi cinalis L. Material and methods the experiments made with this aim were to establish the optimum temperature stages for germination and identifying some ecological seed treatment in order to stimulate seed germination. In laboratory conditions has been studied: -The temperature infl uence over the Echinacea purpurea L. seeds germination, using the following steps of Celsius degree: 10 degree,15 degree, 20 degree and 22 degree. -The reduction of germination period through damping the seed and application of thermal shocks at seeds, analysing the following variants: - seeds damping for 24 hours; - seeds damping for 48 hours; - seeds damping for 24 hours + 12 hours kept into the fridge at the temperature of 4 Celsius degree; - seeds damping for 48 hours + 12 hours into the fridge. Results and discussions Due to the research made at A.R.D.S. Secuieni was found that the optimum temperature for germination in the laboratory conditions to the seeds of the three species is 20 – 220C. The organic treatments made at seed led to shortened the period from when the seeds were put to germinate and until they began to germinate, but also of the period from sowing to emergence. The most effective variant was the one where the seeds were soaked 48 hours and were kept in refrigerator for 12 hours at 40ºC, the period from sowing to emergence reducing at the Hypericum perforatum L. to 9 days versus 48 days (in control variant untreated). At Echinacea purpurea (L) Moench. still to this variant the period from sowing to emergence was reduced to 8 days compared to 45 days as it was in the control variant – untreated, and at Salvia offi cinalis L. this period was of 6 days. Conclusions The most effective variant was the one where the seeds were soaked 48 hours and were kept in refrigerator for 12 hours at 40ºC, the period from sowing to emergence reducing at the Hypericum perforatum L. to 9 days versus 48 days (in control variant - untreated).