Gentiana lutea L. is widely used in bitter beverages and in medicine; Gentianae Radix is the pharmaceutical name of the root of G. lutea. These uses have generated a high demand. The wild populations of Gentiana lutea var. aurantiaca (M. Laínz) M. Laínz have been decimated; it is necessary to establish guidelines for its cultivation. Gentian as most alpine species has dormant seeds. Dormancy ca...

Xyloglucan endotransglycosylase (XET) activity extractable from internodes of tall and dwarf varieties of pea (Pisum sativum L.) was assayed radiochemically using tamarind seed xyloglucan as donor substrate and an oligosaccharidyl-[3H]alditol as acceptor substrate. Internodes I and II showed little elongation during the period 15 to 21 d after sowing; XET activity remained relatively constant a...

Effect of growth hormones i.e., gibberellic acid (GA3), indole-3-acetic acid (IAA) and Kinetin was studied on the root of Cicer arietinum L. after forty-five and sixty days of treatments and compared with control. The application of GA3 alone and in combination with IAA or Kinetin or both caused extension growth and insignificant increase in the number of rootlets accompanied with decrease in t...

Groundnut seed priming was performed with an aqueous solution of gibberellic acid (GA3) (0, 50, 100, and 150 ppm for 18h) and accelerated aging (96 h) was done prior to drought stress (-0.4, -0.6, and -0.8 MPa), then recovered. Investigated traits were germination percentage, mean germination time, germination rate, vigor index, plumule length, radicle length, seedling length, malondialdehyde c...

BACKGROUND Arbutus unedo is a valuable Mediterranean shrub as an ornamental plant as well as fruit tree. Fresh fruits of A. unedo are a good source of antioxidants, of vitamins C, E and carotenoids and also are characterized by the high content of mineral elements. MATERIALS AND METHODS The effects of gibberellic acid (GA3) and cold stratification (CS) on seed germination performance were inv...

The present work demonstrates the participation of polyamines (PAs) to improve direct regeneration and Agrobacterium-mediated transformation in soybean half-seeds. The inclusion of PAs to culture medium along with optimal plant growth regulators (PGRs) enhanced shoot induction [98.3 %; 4.44 µM N6-benzyladenine (BA) and 103.27 µM spermidine] and elongation [90.0 %; 1.45 µM gibberellic acid (GA3)...

Potato (Solanum tuberosum L.) cv. Eshu 10 was used to investigate the effects of exogenous gibberellic acid (GA3), abscisic (ABA), and low-temperature stress on changes hormone content, expression patterns StTCP15 gene, tuber dormancy characteristics. Under GA3 treatment stress, broken in about one week sooner compared with control group, but ABA did not significantly promote breaking dormancy....

Little is known about the seed ecology of native plants from subalpine and alpine vegetation zones on oceanic islands, although their biodiversity unique vulnerable (e.g. facing fires biological invasions). This study germination focuses five species, which are representative shrubland Reunion Island. The main objectives to identify presence dormancy light requirements, evaluate whether GA3 or ...

Rhodothamnus sessilifolius is a species of the Ericaceae family endemic to Artvin province in NE Turkey. This critically endangered list and current populations are decreasing, therefore, it requires protection reproduction. Thus present study aimed investigate effect various gibberellic acid (GA3) applications on germination R. seeds. The effects GA3 concentrations final percentage, mean time,...

Poor emergence resulting in inadequate stand establishment is a major problem associated with direct-seeded rice production, especially for semidwarf cultivars. In order to gain information on the problem, plant type related to gibberellic acid (GA3) and seeding depth was studied. A total of 21 cultivars including 9 semidwarfs and 12 talls had seed treated with GA3 at 25 parts per million (ppm)...