Summiary. Immature (8-mmii11), miie(liumiii mature (1l-mm), andI muature green (16an1d 17-mm1ni) )ean seeds (Phlaseolis zvitlgaris L. cv. Ken,tucl-y \Wonder andl Bountiful) were incubated in gil,bberellin A1 soluitionis for 24 lhours at 200. Extracts from the seeds were separated ilnto nionacidic, acidic ethyl acetate, and acidic butalnol fractionis. These were chromatographed. The eluates of t...

Somatic embryos and rooted plantlets have been regenerated from light-initiated embryogenic callus derived from mature embryos of Picea abies stored seeds. Under a 16 hour photoperiod, mature zygotic embryos were cultured on a modified half-strength Murashige-Skoog medium without NH4NO3 and supplemented with 5 mM glutamine, 4.5 pM N6-benzyladenine (BA) and 10.7 PM naphthalene-acetic acid (NAA) ...

Enolase activity was measured in clarified homogenates of various tissues during the life cycle of the castor oil plant (Ricinus communis L. cv Baker 296). The proportions of total activity due to the plastid and cytosolic isozymes were determined after separation by ion-exchange chromatography. The contribution of the plastid isozyme varied from more than 30% of the total at the midpoint of en...

in this investigation, the effect of different treatments on breaking of seed dormancy of almond species and peach seeds include prunus scoparia spach, p. haussknechtii bornm, p. communis l. and p. persica l. was studied to determine their seed germination percentages. first, mature seeds, without endocarp were treated with two percent tmtd® (tetramethylthiuram disulphide) fungicide solution fo...

In order to investigate the mutation characteristics and to further examine the genetic variation of mutant sunflower (Helianthus annuus) obtained in plants grown from seeds exposed to space conditions, only the mature tissues such as leaf and flower could be used for DNA extraction after mutation characteristics were confirmed. The rich contents of polysaccharides, tannins, secondary metabolit...