Tezislər / Theses

Supervisor: Nargiz Sultanova 
Keywords:
Cucurbitáceae
, virus diseases, ZYMV, CMV
 
Plant diseases of 
Cucurbitáceae
crops in various countries around the 
world cause significant economic losses between 15- 20% and sometimes 
up to 90%. Modern and accurate diagnosis of the disease plays an important 
role in the development of an ecologically efficient protective system and in 
preventing crop losses [1]. Managing diseases is a very important 
component of production for melons, cucumbers, squashes, pumpkins, and 
other cucurbit crops. Among the most widespread vegetable species in our 
country, the total production of 
Cucurbitáceae 
plants is second only to 
tomatoes. Due to the rich climate diversity, many plant species belonging to 

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THE 3
rd
 INTERNATIONAL SCIENTIFIC CONFERENCES OF STUDENTS AND YOUNG RESEARCHERS 
dedicated to the 99
th
anniversary of the National Leader of Azerbaijan Heydar Aliyev
339
Cucurbitáceae
are grown in our country. 
Cucurbitáceae
production in 
Azerbaijan was 47% in 2019, but in 2020 dropped to 34%. There are many 
pests and various disease factors that lead to a decrease in production. Viral 
diseases are one of the main reasons for
the loss of 
Cucurbitáceae
production. Melons, watermelons, cucumbers, and pumpkins, the main 
agricultural species of 
Cucurbitáceae 
are infected with at least 59 
characteristic viruses that are widespread throughout the world. These 
include 
Zucchini yellow mosaic virus
(ZYMV), 
Cucumber mosaic virus 
(CMV), 
Pumpkin mosaic virus
(SqMV), 
Watermelon mosaic virus
(WMV), 
and 
Papaya ring spot virus –W
(PRSVW), which are
considered dangerous 
for vegetable plants. Such diversity of viruses is probably based on the 
ecological and genetic biodiversity of their plant hosts [2]. On the other hand, 
Cucurbitaceous 
crops are grown in various agricultural ecosystems, from the 
cultivation of watermelons by the classical method of irrigation, to the 
cultivation of cucumbers in greenhouses. These various environmental 
factors create desirable conditions for specific viruses and their insect 
vectors. Twenty-six strains of viruses infected 
Cucurbitáceae
crops are found 
in the Mediterranean countries, while only four viruses (WMV, ZYMV, CMV, 
and 
Cucurbit aphid-borne yellows
(CABYV)) are shown to be prevalent in 
Azerbaijan. Most viruses that infect 
Cucurbitáceae
crops belong to the 
Potyviridae
family [3]. It should be noted that this is the most widespread 
group of plant viruses. This family of viruses includes more than 200 well
-
studied and not yet well-studied plant viruses. Viruses of this genus cause 
great economic losses, resulting in a decrease in product quality and quantity 
throughout the world.