Fundamentals of Physical Modeling of “Ideal” Agroecosystems

Панова, Г. Г.; Удалова, О. Р.; Kanash, E. V.; Galushko, Alexander; Кочетов, А. А.; Priyatkin, N. S.; Arkhipov, Mikhail; Chernousov, I. N.

doi:10.1134/s1063784220100163

Cited by 22 publications

(28 citation statements)

References 19 publications

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“…while maintaining the remaining factors in the optimum zone and assessing their influence on the implementation of the studied traits. Investigations of quantitative traits are especially relevant, the degree of manifestation of which significantly depends on the genotype-environment interaction [24,25]. It is known that the photoperiod is one of the most important environmental factors that significantly affect the course of physiological processes in the plant and its transition to the generative stage of development [26,27].…”

Section: Introductionmentioning

confidence: 99%

QTL Analysis of the Content of Some Bioactive Compounds in Brassica rapa L. Grown under Light Culture Conditions

et al. 2021

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The article presents the results of biochemical and QTL (Quantitative Trait Loci) analysis of dry matter content, nutrient and biologically active compounds: sugars, ascorbic acid, chlorophylls a and b, anthocyanins and carotenoids in populations of doubled haploid lines of leaf, root crops, and oilseeds of the Brassica rapa L. species grown in optimal light culture conditions, but with different photoperiod durations. The purpose of this study was to evaluate the effect of the photoperiod on the transition to bolting and the accumulation of biologically active substances, as well as how the localization and identification of chromosomal loci determined the content of certain phytochemicals. The influence of the length of daylight hours on the content of components of the biochemical composition was assessed. It was shown that growing under conditions of a 16 h photoperiod increased the content of dry matter, sugars, vitamin C, and anthocyanins. On the contrary, the content of photosynthetic pigments was higher under the conditions of a 12 h photoperiod. Valuable lines that can be sources of biologically active compounds were revealed. Based on the results of the obtained data, 102 QTLs were mapped, which determine the manifestation of the studied biochemical quality traits in the B. rapa doubled haploid lines under conditions of short and long daylight hours. Molecular markers genetically linked to the selected QTLs were determined. It was revealed that the identified loci controlling all the studied biochemical traits were mainly in the fifth, sixth, seventh, and ninth linkage groups, which correlated with the data obtained in the field and greenhouse. Most of the identified loci controlled several studied traits simultaneously. The identified QTLs and identified molecular markers are of interest for further study of the genetic control of the economically valuable traits determined by them and for the implementation of marker-assisted selection in B. rapa. The data obtained can be used in genetic and breeding work, including for the obtaining of new genotypes, lines and cultivars with a valuable biochemical composition, adapted for cultivation under specific photoperiodic conditions.

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Section: Introductionmentioning

confidence: 99%

QTL Analysis of the Content of Some Bioactive Compounds in Brassica rapa L. Grown under Light Culture Conditions

et al. 2021

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“…Современные исследования по светофизиологии растений и биопродуктивности агроэкосистем ориентированы на познание закономерностей взаимодействия растений и сопутствующей биоты со средой обитания в регулируемой агроэкосистеме при моделировании оптимальных и стрессовых условий, а также на разработку приемов и средств повышения устойчивости растений к стрессовым факторам и получения стабильных высоких урожаев требуемого качества в условиях защищенного и открытого грунта (70,71).…”

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90 Years of Agrophysical Institute as a History of Priority Achievements in Russian and World Agrophysical Science

Uskov¹

2022

S-h. biol.

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“…Як штучні субстрати для укорінення рослин використовують керамзит, перліт, мінеральну вату тощо. Мінеральна вата має лужну реакцію (рН 7, [5][6][7][8]5). За один вегетаційний період вона втрачає 20 % об'єму, і подальше вирощування рослин передбачає поповнення її.…”

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“…Вивчення взаємодії цих параметрів з коренезамінними системами визначає їх економічну ефективність [5,6].…”

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“…Наступним етапом є взаємодія органічних речовин з грунтом: він їх адсорбує, і колоїдна фракція грунту та органічні сполуки від кореневих систем створюють нові компоненти, які стають доступними для рослин, однак після відповідного періоду взаємодії з грунтовим вбірним комплексом. Кремній-хелатні мікродобрива в умовах закритого ґрунту забезпечують стійкість рослин до дефіциту освітлення і сприяють підвищенню продуктивності за зменшення енерговитрат [6].…”

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Ecological and economic features of substrates for growing plants in greenhouses

Dubovy

Adamovych²,

Dubovyi

2021

Agrobìologìâ

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It is noted that hydroponic technologies for growing vegetables require careful running of all necessary technological operations. Failure of one of them can result in failure to obtain the maximum possible productivity of plants of appropriate quality. Maintenance of the entire system of ensuring a high-quality hydroponic regime for growing vegetables is economically costly. However, even under such growing conditions, vegetable crops are far from optimal. Repeated use of artifcial substrates contributes to the accumulation of phytopathogenic substances of phenolic nature and, as a consequence, reduces the yield of crops. These substrates do not produce enough CO2 and plants need it. It is shown that the main function of soil both in the feld and especially in soil greenhouses and hothouses is reduced to its ability to accumulate organic acids produced by plants, as these substances have a detrimental effect on the plant itself. The next step is the interaction of organic acids with the soil, which it adsorbs. The colloidal fraction of the soil and organic compounds from the root systems create new components that become available to plants after a corresponding period of interaction with the soil absorption complex. It is established that it is enough to apply fresh manure in cattle in the amount of 90–100 t/ha, but after a year. After growing vegetables in the fall (cucumber, tomato), their stems were removed and placed in the pit of a shelving greenhouse, where California worms were grown, in order to obtain compost. In greenhouses freed from grain crops, green manure crops (oil radish, winter rape) were sown, pre-treated surface soil. The soil of greenhouses and hothouses can be used for a long period of 30 years or more, using crop rotation from vegetable, grain and medicinal tropical crops without the cost of electricity to maintain light - temperature growing conditions in spring-summer-autumn periods. Key words: hydroponics, soil greenhouses, vegetable, grain and medicinal tropical crops, cultural change of growing conditions in spring-summer-autumn periods.

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Fundamentals of Physical Modeling of “Ideal” Agroecosystems

Cited by 22 publications

References 19 publications

QTL Analysis of the Content of Some Bioactive Compounds in Brassica rapa L. Grown under Light Culture Conditions

QTL Analysis of the Content of Some Bioactive Compounds in Brassica rapa L. Grown under Light Culture Conditions

90 Years of Agrophysical Institute as a History of Priority Achievements in Russian and World Agrophysical Science

Ecological and economic features of substrates for growing plants in greenhouses

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