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Abstracts ICPS 2023

 
 


Poster presentation 
296 
PRODUCTIVITY OF Ajuga turkestanica SEEDS
 
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: akmal-egamberdiyev-76@mail.ru,
 phone: +998998588835 
 
Determination of seed productivity of 
Ajuga turkestanica 
(Regel) Brig was carried 
out in Kashkadarya and Surkhandarya regions during 2019-2022. vegetative and 
generative branches of 
Ajuga turkestanica 
(Regel) Brig. were formed up to 65 in each 
bush. Each plant produced up to 60 flowers. 
Due to very warm weather in 2019, flowering of plants started much earlier (15.04). 
In 2020, the flowering period was observed later (18.05) due to good weather and 
prolonged rainfall. 2021, when the phenology of 
Ajuga turkestanica 
(Regel) Brig. was 
observed in an experimental field in Boysun District, the plant began to flower on April 
29. The period of fruiting lasted longer than flowering, depending on weather 
conditions. We studied fruit set based on the beginning of the flowering process, total 
flowering, completion and location of the flowers on the stem (bottom, middle and top). 
The highest number of opened flowers and set fruits was observed during the beginning 
of flowering and the period of total flowering. At the beginning of the flowering period, 
an average of 7.2 flowers were formed on one stem per plant. During the total flowering 
period, it was 7.9 flowers, and at the end of flowering, this indicator was 6.3 flowers. In 
the experimental field of Boysun district, it was observed that the plant had a high seed 
production rate for three years. But, due to the change of weather, some of the buds did 
not have time to form and produce fruit. At the end of flowering, the buds and flowers 
formed are relatively small, and only 50-55% of the fruit's seeds are fully ripe. 
In conclusion, the seed productivity of plants in nature also varies depending on 
weather conditions. The formation of seed rate was 85.6% on average for 3 years. The 
main reasons for this are that some flowers are not pollinated and some of them fall due 
to the influence of the external environment (15%). The table shows the results of three 
years of experiments, 1 bush of 
Ajuga turkestanica 
(Regel) Brig. averaged 72.7±5.9 
buds, 62.6±2.95 flowers, 51.2±2.36 fruits, and produced 248 seeds. The weight of 1000 
pieces of 
Ajuga turkestanica 
(Regel) Brig. seeds was 20.20 grams. So, one bush of 
Turkestan ajuga seed yield is equal to 5.06 grams. 
Ajuga turkestanica 
(Regel) Brig. in 
the experimental field of Boysun district had high productivity at the beginning of 
flowering and total flowering periods, and the rate of seed setting was 67.6%. 

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