This study was performed to determine the effect of ultrasound treatment on seed germination, seedling emergence and mean germination times in seeds watermelon, melon, leek, pepper, carrot, tomato aubergine. Seeds treated with 40 kHz over 30 minutes (US), hydroprimed (HP) dry controls (C) were tested. US-treated had 85% percentages compared 82 78% for HP C seeds, respectively. Corresponding val...

We consider the SIR model and study first time number of infected individuals begins to decrease this population is below a given threshold. interpret these times as functions initial susceptible populations characterize them solutions certain partial differential equation. This allows us obtain integral representations in turn estimate precisely for large populations.

To determine the effect of salt stress on seed germination of Leymus species, seeds of Leymus racemosus (Lam.) Tzvel., Leymus angustus (Trin.) Pilger, Leymus multicaulis (Kar. et Kir.) Tzvel., Leymus duthiei (Stapf) Y. H. Zhou et H. Q. Zhang and Leymus secalinus (Georgi) Tzvel. were treated with NaCl solutions of different concentration: 0 mmol/L, 100 mmol/L, 200 mmol/L, 300 mmol/L, 400 mmol/L ...

Two distinct proteolytic systems have been detected during germination of Bacillus megaterium spores: one degrading a unique class of dormant spore proteins and the other degrading primarily protein synthesized during germination. Proteolysis of dormant spore protein began by the 3rd min of germination and by 25 min had degraded 15 to 20% of the pre-existing protein to free amino acids. This re...

Two distinct proteolytic systems have been detected during germination of Bacillus megaterium spores: one degrading a unique class of dormant spore proteins and the other degrading primarily protein synthesized during germination. Proteolysis of dormant spore protein began by the 3rd min of germination and by 25 min had degraded 15 to 20% of the pre-existing protein to free amino acids. This re...

The synthetic seed technology is becoming popular due to its wide application in germplasm conservation and for exchanges between countries in the floriculture trade. In this study, this method was used to study the germination and conversion capabilities of orchid species Dendrobium White Fairy when stored at different storage times and with different storage containers. A high germination per...

Cassia tora Linn. is a medicinal herb that has traditionally been used to prevent diseases. The study investigated the changes in bioactive compounds of seeds during 3-days germination. were thoroughly cleaned, soaked deionized water at 20 °C for 2 h, and germinated 25 90% relative humidity seed germinator. Germinating C. picked up 24 h intermissions over 3-day germination duration. germinating...