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The Federal State Budgetary Scientific Institution "Central Scientific Agricultural Library" (CSAL) is the oldest Bibliographic Center for Agricultural Science and Food Industry in the Russian Federation. The library was founded in 1930. More than 3 million items are stored in the library collection. Since 1992, CSAL has been managing AGROS, the largest agricultural database in Russian in the world. This database contains information about books and articles published both in Russian and foreign periodicals or serial editions (the annual increm [...]

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Journal Article

Journal Article

Ecological relationship of the agropopulations of ecdysteroid-containing plants Rhaponticum carthamoides (Willd.) Iljin and Serratula coronata L. with insects-phytophagans Part 2. Variability of the composition of phytoecdysteroids in agrocoenosis and their role in damageability of plants by pests  [2009]

Timofeev, N.P.;

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Accumulation and variability of ecdysteroids in the phytomass, which are analogs of the insect moulting hormones, were studied in ontogenesis of the agropopulations of Rhaponticum carthamoides (Leuzea carthamoides DC.) and Serratula coronata, with relation to the age and plant cultivation conditions. The physiological role of ecdysteroids in the ecological mutual relations with pests was evaluated. It was revealed that the enhancement of the activity of phytophagans coincides with biochemical changes in the composition of ecdysteroids, possessing various kinds of physiological activity, and is accompanied by damage of reproductive organs. During the age-related changes in ontogenesis and seasonal development during the vegetative period, the individual share of physiologically active ecdysteroid 20-hydroxyecdysone decreases, while the low-activity ecdysteroids inokosterone and ecdysone are accumulated in generative sprouts. Concentrating of the low-activity ecdysteroid ecdysone in the phytomass is affected by the ecological conditions of the environment and anthropogenic factors of cultivation. The factors promoting realization of the potential of affection by pests are the microclimate of the environment, accommodation of populations over the relief elements of the area, and the performed agrotechnical actions (intensity of phytomass removal, superfluous humidity in the rooting layer of populations).
From the journal
Siberian Journal of Ecology
ISSN : 0869-8619

Bibliographic information

Language:
Russian
Type:
Journal Article
In AGRIS since:
2010
Volume:
16
Issue:
6
Start Page:
829
End Page:
842
All titles:
"Ecological relationship of the agropopulations of ecdysteroid-containing plants Rhaponticum carthamoides (Willd.) Iljin and Serratula coronata L. with insects-phytophagans Part 2. Variability of the composition of phytoecdysteroids in agrocoenosis and their role in damageability of plants by pests"@eng
"Экологические взаимоотношения агропопуляций экдистероидсодержащих растений Rhaponticum carthamoides (Willd.) Iljin и Serratula coronata L. с насекомыми-фитофагами. Сообщение 2. Изменчивость состава фитоэкдистероидов в агроценозе и их роль в поражаемости растений вредителями"@rus
Other:
"Summaries (Ru, En)"
"6 tables"
"2 ill., 66 ref."
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Bibliographic information

Language:
Russian
Type:
Journal Article
In AGRIS since:
2010
Volume:
16
Issue:
6
Start Page:
829
End Page:
842
All titles:
"Ecological relationship of the agropopulations of ecdysteroid-containing plants Rhaponticum carthamoides (Willd.) Iljin and Serratula coronata L. with insects-phytophagans Part 2. Variability of the composition of phytoecdysteroids in agrocoenosis and their role in damageability of plants by pests"@eng
"Экологические взаимоотношения агропопуляций экдистероидсодержащих растений Rhaponticum carthamoides (Willd.) Iljin и Serratula coronata L. с насекомыми-фитофагами. Сообщение 2. Изменчивость состава фитоэкдистероидов в агроценозе и их роль в поражаемости растений вредителями"@rus
Other:
"Summaries (Ru, En)"
"6 tables"
"2 ill., 66 ref."