Organizing co mmittee

Seed yield of Ajuga turkestanica (Regel) Brig
(in natural conditions)
Geographical 
place
(soil type, height 
from sea level, h) 
Observed 
years 
Number of generative organs in 
the one bush, 100 pcs 
Seed 
forming 
rate, g, 
% 
1000 
pieces 
seed 
weight, 
gr 
seed 
producti
vity of 
one 
bush, pcs 
buds 
flowers 
fruits 
Boysun district, 
red and brown 
soil, h-800 
2019 
73.1 ±4.95 62.0±3.55 48.0±2.05 
67,6 
20.02 
248 
2020 
71.4±5.40 65.8±3.29 51.2±3.01 
2021 
73.8±5.24 60.1 ±2.01 54.4±2.04 
Average 
3 years 
72.7±5.19 62.6±2.95 51.2±2.36 

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Poster presentation 
297 
GENERATIVE PERIOD OF 
Ajuga turkestanica
 
 
A. Egamberdiev
1
, B. Nigmatullaev
1
, A. Nigmatullaev
1
 
 
1) S.Yu. Yunusov Institute of the Chemistry of Plant Substances Academy of sciences of 
the Republic of Uzbekistan st. Mirzo-Ulugbek, 77, 100170 Tashkent
e-mail: [e-mail],
 phone: [phone] 
 
There is no information in the literature about generative period, flowering, fruit 
forming of the medicinal plant 
Ajuga turkestanica 
(Regel) Brig. 
The results of our observations showed that the plant entered the generative period in 
the third year of its vegetation. This coincided with the beginning of May, and flower 
buds appeared from under the leaves from the third joint to the 9-10 joint of the main 
stem. At the end of May, single buds in the axils of 8-9 pairs of leaves begin to open. 
During this period, the height of a 3-year-old plant reaches an average of 24-26 cm, and 
the growth of the plant slows down. The opening of flowers of 
Ajuga turkestanica
lasted 
mainly from the end of April to the end of May. The flower opens as follows: the buds 
that should open the next day differ in size and weight compared to others. The calyx 
leaves are higher than the corolla leaves, and the next day the buds begin to open as they 
mature. Corolla leaves are jointed with a broad base, multi-veined, reddish in color, 2-3 
cm long. During the opening of the flower, the pollinators are tightly attached to the pistil, 
5 hours after the opening of the flower, the pollinators move away from the pistil towards 
the petals, leaving the remains of the pollinator sealed in the form of pollen grains around 
the stigma. The stigmas of the seed are head-shaped, it is turned with feathering towards 
the top. 1 day after the opening of the flower, the stigma parts begin to separate from the 
middle part, and by the 3rd day, the stigma parts are completely separated and remain 
separate, by the 4th day, the stigma parts are bent, the inner smooth surface is turned to 
the outer side, and the remains of pollen remaining around the stigma parts are twisted 
together with the stigma and remain under the stigma parts. At this time, the corolla 
darkens and begins to shrivel. By the 5th day, the stigma changes from red to pinkish-red, 
on the 6th day, the rind dries up on the stigma and the fruit is formed. So, it takes 6 days 
for the bud to fully open and the petals to spill out. Some parts of the mature pollen 
grains, that is, the places where the pollen nests stick together, are covered with a thick 
cuticle. As a result of the tests, it was found out that there are a large number of pollen 
grains in 9 mm long buds, the length of the pollen grain is 4 mm, and the length of the 
pollinator thread is 1 mm. During the period before the bud matures and the flower opens, 
the anther grows imperceptibly, its length reaches 4.4 mm, and it is considered to be 
anther at this time. In the generative period, the tap root of the plant reaches up to 80 cm, 
and it branches up to the 4th order. The base of the root is strongly woody. 
Ajuga turkestanica 
(Regel) Brig. belongs to the category of diurnal thermophilic 
plants. Flowers start to open in open weather, temperature 20°С, from 8-9 am in the 
morning. Flowers were observed to open from 8:00 am to 5:00 pm in the Boysun 
District experimental field. Its flowering rhythm has changed a lot due to air 
temperature (35°C) and other environmental factors. So, it was observed that the total 
flowering period of this plant lasted 44-46 days from the middle of April (15.04) to the 
end of May (30.05). In order to determine the daily flowering period of this plant, 10 
plants were selected and observed from 6 am to 12 pm. In this, the number of open 
flowers on each bush was counted and then plucked. In addition, air temperature (30-
35°C) and humidity (55%) and sunlight (80,000 lux) were taken into account. 

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Poster presentation 
298