TITLE:
Bioecological Characteristics and Natural Resources of Rhaponticum integrifolium in Uzbekistan
AUTHORS:
Alieva Namuna
KEYWORDS:
Rhaponticum integrifolium, Ecdysteroids, Ontogenesis, Seed Production, Yield, Reserves in Uzbekistan
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.10 No.5,
May
30,
2019
ABSTRACT: The large life cycle Rhaponticum integrifolium in
natural populations (Qashqadaryo, Uzbekistan) was studied. Duration of before generative,
generative and senile periods of Rhaponticum
integrifolium is 2 - 5, 8 - 10 and 2 -
4 years respectively. The beginning of phenophases
depends on the height of the terrain above sea level: raising the terrain from
400 to 1500 m leads to a delay in the onset of phenophases.
Age states of Rhaponticum integrifolium in different ecological and phytogenetic conditions were revealed. Updated distribution of
detected participation of vegetation and the raw Rhaponticum integrifolium in Uzbekistan, describes the
dynamics of the contents ecdysteroids in the periods of vegetation. At the same
time, a map of the species area in
Central Asia was made and the term of its phytomass recovery under different
operating modes of thickets was determined.