Photosynthetic activity and dynamics of dry mass of plants accumulation of winter soft wheat, depending on growing conditions

Ионова, Е. В.; Газе, В. Л.; Лиховидова, В. А.

doi:10.31367/2079-8725-2020-67-1-23-27

Cited by 4 publications

(4 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Ионовой и др. [4] указывается, что у зерновых культур содержание хлорофилла -наследуемый признак со своей возрастной и структурной динамикой. Создание новых, более продуктивных сортов часто соотносят именно с количественными изменениями пигментного состава листьев.…”

Section: Agronomy Original Articleunclassified

Influence of sowing date and variety features of winter rye plants on photosynthetic indicators

Ponomareva¹,

Ponomarev²,

Mannapova³

et al. 2021

asj

View full text Add to dashboard Cite

The concentration of pigments and chlorophyll potential in the tissues of various organs of three varieties of winter rye during plant ontogenesis were studied. New varieties of winter rye Radon, Podarok and Zilant were sown in 3 data with an interval of 10 days, starting from August 25. Sampling for plant analyses of photosynthetic activity was carried out at the beginning of flowering and milk stage of the grain in 2018-2019. Differences between the varieties were revealed, both chlorophyll content in assimilating organs and their total accumulation in different periods of the growing season. It is shown that the sowing time, which determines the rate and degree of autumn and spring development of winter rye plants, has significant effect on the chlorophyll content. The highest content of green pigments was found at the late sowing date in leaves, leaf sheaths, and spike. In the stems, almost equal amounts of chlorophyll at the 1st and 2nd dates and a slight decrease at the third date were observed. The maximum chlorophyll content accumulated in leaf during flowering (0.88-1.83 mg / g) and during milk stage of grain (1.04 ... 1.93 mg / g) of winter rye. The highest amount of chlorophyll A+B variety Radon showed at the 3rd sowing date, and Zilant - at the 1st sowing date. The rank of varieties was maintained both during flowering and at milk stage of grain. The value of chlorophyll index of the plant reached a maximum in the phase of flowering at the first sowing date (on average for the varieties 9.83 mg/plant). Differences between the varieties in this indicator were more evident in the phase of milk ripeness. On average for the three dates of sowing the highest values of chlorophyll index were observed in variety Radon (8.72 and 8.45 mg/plant, in flowering and milky ripeness, respectively).

show abstract

Section: Agronomy Original Articleunclassified

Influence of sowing date and variety features of winter rye plants on photosynthetic indicators

Ponomareva¹,

Ponomarev²,

Mannapova³

et al. 2021

asj

View full text Add to dashboard Cite

show abstract

“…The relationship between the top leaf area, its photosynthesis, the productivity of wheat varieties has been noted many times and can be used as a breeding trait for the selection of productive wheat forms [2,3,4]. This relationship is weaker in awned wheat and barley due to the higher value of ear photosynthesis in grain swelling [5,6].…”

Section: Introductionmentioning

confidence: 99%

Photosynthetic activity ofTriticum carthlicumNevski. (=Triticum persicumVav.) variety samples in the forest-steppe zone of the Northern Trans-Urals

Тоболова¹

2021

BIO Web Conf.

View full text Add to dashboard Cite

The studies of plants’ assimilation activity of the Triticum carthlicum Nevski. (=Triticum persicum Vav.) tetraploid species’ variety samples have been carried out in the subtaiga zone (Aromashevo) and the northern forest-steppe zone (Tyumen). The number of leaves on plants by zones varied from three to five. Measurements showed that the lamina length varied from 6.4-23.7% in the northern forest-steppe zone and from 0 to 21.9% in Aromashevo. The lamina area on the main shoot of the Triticum carthlicum Nevski variety samples in the northern forest-steppe zone amounted to 62.3 cm2, which was 26 cm2 less than in the subtaiga zone. Calculation of net photosynthetic productivity in northern forest-steppe zone showed that Triticum carthlicum Nevski variety samples formed from 10.864g*m2/day to 20.764 g*m2/day, giving way to durum and soft wheat. In the subtaiga zone, PPn of Triticum carthlicum Nevski wheat varied from 9.088 to 13.827 g*m2/day, significantly yielding Bezenchukskaya 139 variety.

show abstract

“…Признаётся, что подобное состояние агробиоценоза обеспечивается при оптимальном сочетании внешних и внутренних факторов, включающих интенсивность солнечного излучения, температуру и влажность воздуха, плодородие почвы, количество и периодичность выпадения атмосферных осадков. Не меньшее влияние на фитометрические параметры посевов оказывают биологические и морфологические особенности растений, в том числе число листьев, соотношение надземной и подземной биомассы, архитектоника растений [15,16]. Последние из перечисленных факторов имеют вполне очевидную видовую и сортовую специфичность.…”

Section: Introductionunclassified

Varietal Specificity of Opto-Biological Properties and Phytometric Parameters of Winter Wheat Crops

Gulyanov¹,

Николаев²,

Yakovlev³

2021

TVAN

View full text Add to dashboard Cite

Identification of varietal specificity of opto-biological properties of field crops is necessary for adequate interpretation of satellite images, rapid determination of phytometric parameters of crops, indication of the level of their development and justification of corrective technological solutions. The aim of the research was to evaluate the opto-biological properties and phytometric parameters of diverse biological varieties of winter wheat; identify their relationship and inter-variety variability in high-tech reference crops based on satellite and ground monitoring. Field studies were conducted in 2019-2020 on the site of competitive ecological variety testing laid on the experimental field of the Orenburg State Agrarian University in the zone of the southern steppes of the Orenburg Cis-Urals (Preduralye). During the study, we found that agrocenoses of different winter wheat varieties differ markedly in opto-biological properties expressed in normalized difference vegetation index (NDVI) values. Varieties ‘Grom’, ‘Don 95’, ‘Bystritsa’, ‘Spartak’, ‘Stanichnaya’ and ‘Sintetik’ were characterized by the lowest average NDVI values during the growing season (0.57-0.59). Higher NDVI values (0.67) were observed in the crops of ‘Zhemchuzhina Povolzhya’, ‘Kolos Orenburzhya’, ‘Orenburgskaya 105’, ‘Rifey’ and ‘Pionerskaya 32’ varieties. The variability between the varieties according to the lowest (0.51 – ‘Grom’, 0.52 – ‘Don 95’) and the highest (0.69 – ‘Kolos Orenburzhya’, 0.70 – ‘Pionerskaya 32’, 0.69 – ‘Orenburgskaya 105’) NDVI values during the maximum assimilation apparatus development reached 0.17-0.19 units (phase of full spring tillering). By the heading, when NDVI was 0.78–0.79 and 0.85 units, respectively, this difference somewhat leveled but, in general, remained significant – at the level of 0.08-0.11 units (10.9–14.9 %). The largest leaf area (30 thousand m2/ha) was typical for the crops of ‘Saratovskaya 17’, ‘Kolos Orenburzhya’, ‘Orenburgskaya 105’, ‘Rifey’ and ‘Pionerskaya 32’. There was no direct inter-variety relationship between the leaf area and NDVI of winter wheat crops (R 2= 0.38).

show abstract

Photosynthetic activity and dynamics of dry mass of plants accumulation of winter soft wheat, depending on growing conditions

Cited by 4 publications

References 3 publications

Influence of sowing date and variety features of winter rye plants on photosynthetic indicators

Influence of sowing date and variety features of winter rye plants on photosynthetic indicators

Photosynthetic activity ofTriticum carthlicumNevski. (=Triticum persicumVav.) variety samples in the forest-steppe zone of the Northern Trans-Urals

Varietal Specificity of Opto-Biological Properties and Phytometric Parameters of Winter Wheat Crops

Contact Info

Product

Resources

About