Efficiency of use of photosynthetically active radiation in winter wheat crops

Priadkina, G. O.; Стасик, О.О.; Kapitanska, O.S.; Yarmolska, O.E.; Tsukrenko, N. V.

doi:10.35550/vbio2019.01.023

Cited by 4 publications

(7 citation statements)

References 26 publications

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“…In particular, it was found that three modern high-productive wheat varieties growing in Bangladesh had higher efficiency of photosynthetic energy conversion into biomass for the period from 42 to 102 days after sowing (0.80-0.94 g/MJ), than two less productive varieties (0.60-0.72 g/MJ) [25]. A positive correlation between winter wheat yield and RUE was also found for whole vegetation period [26], as well as for reproductive [11] and pre-anthesis growing periods [14]. A higher yield corresponded to bigger RUE values in winter wheat grown under dryland and irrigated conditions in the Southern Great Plains (USA) [27].…”

Section: Resultsmentioning

confidence: 89%

“…In this research, it was also shown that an increase in doses of nitrogen fertilizers (from N 40 to N 160 ) has improved RUE. We previously also found that wheat plants foliar treatment with a complex of 7 trace elements and its combined use with carbamide contributed to an increase in the efficiency of solar energy conversion into biomass [11].…”

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confidence: 88%

“…It is known that RUE depends on the crops, conditions of the year, phenological stage, conditions of water supply, nitrogen nutrition, etc. [9][10][11]. Thus, it was found that drought significantly reduced the efficiency of energy conversion into biomass in various wheat varieties, compared with the irrigated control [12,13].…”

mentioning

confidence: 99%

“…In particular, the RUE value for 4 wheat varieties in one season differed significantly but in the next season it was the same for 3 varieties [12]. Recently we have shown that influence of the genotype on the winter wheat canopy RUE during the reproductive period was stronger, than the effect of foliar treatments by micronutrient complex that included 7 trace elements, and its mixture with carbamide [11].…”

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confidence: 99%

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Radiation use efficiency of winter wheat canopy during pre-anthesis growth

Priadkina¹,

St.²,

Стасик³

et al. 2020

Fiziol. rast. genet.

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The relationship between the photosynthetically active radiation use efficiency during the pre-anthesis period of ontogenesis and yield of winter wheat were studied in field experiments in years with dry weather conditions (2018 -during period of stem elongation-anthesis, 2019 -during the period of grain filling). The studies were conducted using 6 varieties of bread winter wheat (Triticum aestivum L.) originated from the Institute of Plant Physiology and Genetics, National Academy of Sciences of Ukraine. Variety Smuhlianka is widely used high-yielding variety released in 2004, while the others 5 varieties -Hospodarka, Kyivska 17, Pochaina, Krasnopilka and Poradnytsia are more recently released (2017)(2018). It has been established that, starting from the booting stage (GS 45), varieties can be divided into 2 groups differing in leaf area index: varieties Hospodarka, Kyivska 17 and Pochaina were 15-30 % superior than the varieties Krasnopilka, Smuhlianka and Poradnytsia. At the period from anthesis to milky-wax ripeness, the dry biomass growth rate in the first three varieties was also higher than in the last three. The radiation use efficiency (RUE) at the period of spring vegetation (stem elongation-booting) did not differ significantly between the varieties, whereas during the period booting-anthesis and anthesis-late milk ripeness, it was significantly higher in the varieties Hospodarka, Kyivska 17 and Pochaina than in other varieties. The first three varieties have also higher grain yield in both years: 8.60-8.72 in 2018 and 9.15-9.78 t/ha in 2019, while in the varieties Krasnopilka, Smuhlianka and Poradnytsia yield varied in the range of 7.12-7.85 and 7.85-8.48 t/ha, respectively. A positive correlation was found between the RUE in certain periods of pre-anthesis development and grain yield, and the grain number per 1 m 2 , with the exception for the period of stem elongation-booting. The greater efficiency of converting light energy into biomass at the period before anthesis contributes to increasing wheat grain productivity that is associated with a higher rate of above-ground biomass accumulation at the period before flowering and larger number of grains per square meter of soil. These data supported suggestion that a higher RUE during the pre-anthesis growth period may be considered as an important determinant of high wheat productivity and may be used as a potential breeding criterion for high wheat productivity.

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Section: Resultsmentioning

confidence: 89%

mentioning

confidence: 88%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Radiation use efficiency of winter wheat canopy during pre-anthesis growth

Priadkina¹,

St.²,

Стасик³

et al. 2020

Fiziol. rast. genet.

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“…Зокрема, виявлено значну генотипну різницю перетворення світлової енергії в біомасу у сортів, що відрізняються терміном селекції [5]. Нами раніше встановлено, що вплив сорту на ефективність використання радіації в репродуктивний період був значнішим, ніж дія позакореневих обробок рослин мікроелементним комплексом та його суміші з карбамідом [4]. Проте питання, чи є відмінності за цим показником у різних за посухостійкістю сортів, поки ще залишається мало дослідженим.…”

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Estimation of photosynthetic light energy conversion efficiency in winter wheat varieties under drought

Priadkina¹,

Стасик²,

Makharynska³

et al. 2022

Fakt. eksp. evol. org.

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Aim. Search for physiological characteristics of high-yielding varieties of winter wheat based on a comparative analysis of efficiency of solar energy conversion into biomass under natural drought during the grain filling period. Methods. Morphometric, actinometric, statistical. Results. It was found that high-yielding varieties of winter wheat had higher, than less productive ones, increment of aboveground dry matter and the radiation use efficiency in the reproductive period of development. A positive correlation was established between the radiation use efficiency of winter wheat varieties at that period and grain yield, and weight of 1000 grains. It has been suggested that the higher efficiency of light energy conversion to biomass at drought conditions in high-yielding varieties may be related to the higher demand for assimilate due to grain filling and high drought-tolerance of photosynthetic apparatus. Conclusions. A significant genotypic difference in the radiation use efficiency between winter wheat varieties of one maturity group at the reproductive period was established. Higher radiation use efficiency in the reproductive period contributed to the increase of grain productivity due to better grain filling, as evidenced by the positive correlation with the mass of 1000 grains. The presence of significant genotypic variability in this trait indicates that it can be used for genetic improvement of wheat productivity. It was found that the varieties of winter wheat Kyivska 17 and Horodnytsia can be used as donors of valuable breeding traits.

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