Agrobiological Aspects of Increasing Apple Trees Plant Resistance to Low Spring Air Temperatures in Conditions of the South of Russia

Doroshenko, Tatiana Nikolaevna; Slanova, Yulia Valeryevna; Nepshekueva, Tamara Sagidovna; Ryazanova, L. G.; Chumakov, S. S.; Parkhomenko, Olga Valerievna

doi:10.30679/2219-5335-2022-6-78-314-325

Cited by 1 publication

(2 citation statements)

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“…It was noted that the productivity of the fruiting plant and its resistance to adverse factors are antipodal in nature since the same metabolites are involved in their creation but in different quantities [2]. Thus, productivity and stability are formed from the same photosynthesis products but redistributed in different directions following genetic regulation [3]. Therefore, it is necessary to increase the plant resistance to adverse factors.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, it is necessary to increase the plant resistance to adverse factors. The use of some biological growth regulators, organic and chemical fertilizers makes it possible to obtain more tolerant plants and their progeny with better qualities [3][4][5]. The example of species-specific reactions to external environmental factors (and internal factors of the organism) is the different quality of seeds.…”

Section: Introductionmentioning

confidence: 99%

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Seeds diversity of different species in the genus Rhododendron after pre-sowing treatment

Vostrikova,

Potapov,

Stolpovskaya

et al. 2023

IJBCh

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The purpose of the study is the evaluation seeds diversity of different species in the genus Rhododendron after pre-sowing treatment with organic compounds. As the signs of the seeds diversity is understood the seed germination and the seedling height. The research was conducted at the B.M. Kozo-Polyansky Botanical Garden of Voronezh State University (geographic coordinates: E 39°12', N 51°42'; 168.2 meters above sea level), Central Chernozem region (chernozem soil) in 2019-2020. It has been used ornamental shrubs. The study was made about the pyrimidinecarboxylic acids effect on the seed germination and the seedling height of Rhododendron species. The diversity of seeds is manifested in their heterogeneity according to morphological characteristics (the seedling height) and sowing qualities (seed germination) of Rhododendron species. The sowing properties (germinating capacity, seedling growth) were improved after treating the seeds with the organic compounds. There is the trend of increasing the seed germination and the seedling height of Rhododendron depended on the concentration of applied compounds. The seed germination for Rh. ledebourii, Rh. luteum, Rh. molle was increased from 5 to 7%, for Rh. schlippenbachii -from 5 to 10%. The seed treatment with pyrimidinecarboxylic acids at concentrations 0.01%, 0.05% and 0.1% allows to increase the seedling height for Rh. ledebourii from 37.5 to 75%, for Rh. luteum, Rh. molle -from 18.2 to 45.5%, for Rh. schlippenbachii from 20 to 40% concerning the control. To increase the seedling height, 2-benzylamino-4-methylpyrimidine-5-carboxylic acid at concentrations 0.05% and 0.1% is most effective. Morphologically close Rhododendron species (Rh. luteum, Rh. molle) indicated similar reactions to the seed treatment with compounds of the pyrimidinecarboxylic acid series.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%