Wheat genetic gains for two distinct management schemes in China: An analysis of elite spring type genotypes

Ding, Mei; Asim, Muhammad; Li, Mingju; Abdelkhalik, Sedhom; Manore, Daniel; Li, Shaoxiang; Zhao, Hong; Liping, Lin

doi:10.1371/journal.pone.0228823

Cited by 5 publications

(4 citation statements)

References 18 publications

(20 reference statements)

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“…Naturally, triticale line couldn't be at least 10% upper than the production of the Bezostaia 1 variety. Since the beginning of this century, genetic progress in wheat has slowed, which means that genetic variability has reached a maximum [1,14,3,8,11] the threshold that would could be overcome by improving the plant phenotype [2,5], due to increasing the crop growing season [17,6,12] more fertile flowers/spikelet, as well as a high availability of photosynthesis products [16,20,19,13].…”

Section: Introductionmentioning

confidence: 99%

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2022

AnnalsARSciAgr

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The paper highlights the progress in triticale crop becoming an important economically cereal in the world and also in the West part of Romania. The international research stimulated the Romanian triticale program in research centers Fundulea, Turda, Suceava and Timişoara University. The extension of the results from the demonstration fields was difficult; the optics of the farmers from a traditionally wheat-growing country had to be changed. Particular merits have had the specialists who, as students, saw and worked in the triticale experimental fields at the university, thus convincing themselves of its validity. In the western counties of Romania triticale represents 1.56% of agriculture area. It is cultivated on poorly acid soils and in farms with livestock sections. The area cultivated with triticale varies greatly. In the southern counties of Arad, Bihor and Timiş the surface represents 1.0% -1.5%. In Caraş Severin and in the northern counties it is 2.5% to 5.1% (Sălaj). ) distrycambosoils, arenosoils (humus less than 2.2 %) the yield was 2.6 T/ha up to 4.5 T/ha, exceeding wheat and in some areas even corn. In the plain with more fertile soils (chernozem) the Robinson, Trimaso, Trismart and Tulus varieties passed over 9.0 T/ha (2021). The triticale average production/country increased from 2.5 T/ha (2007) to over 3.4 T/ha in the past 10 years and now to 4.6 T/ha. Most of the cultivated varieties originated from the Fundulea (Dr. Gh. Ittu). Farmers in the western part of Romania appreciate triticales, but they also have certain grievances that breeders strive to correct.

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Section: Introductionmentioning

confidence: 99%

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2022

AnnalsARSciAgr

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Section: Introductionmentioning

confidence: 99%

Triticale Improvement: Problems and Prospects in the West Part of Romania

BUTNARU¹,

MATHIU²,

GUSTAFSON³

2022

AnnalsARSciAgr

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The paper highlights the progress in triticale crop becoming an important economically cereal in the world and also in the West part of Romania. The international research stimulated the Romanian triticale program in research centers Fundulea, Turda, Suceava and Timişoara University. The extension of the results from the demonstration fields was difficult; the optics of the farmers from a traditionally wheat-growing country had to be changed. Particular merits have had the specialists who, as students, saw and worked in the triticale experimental fields at the university, thus convincing themselves of its validity. In the western counties of Romania triticale represents 1.56% of agriculture area. It is cultivated on poorly acid soils and in farms with livestock sections. The area cultivated with triticale varies greatly. In the southern counties of Arad, Bihor and Timiş the surface represents 1.0% -1.5%. In Caraş Severin and in the northern counties it is 2.5% to 5.1% (Sălaj). On preluvi- and luvi- soils (pH-4.5) distrycambosoils, arenosoils (humus less than 2.2 %) the yield was 2.6 T/ha up to 4.5 T/ha, exceeding wheat and in some areas even corn. In the plain with more fertile soils (chernozem) the Robinson, Trimaso, Trismart and Tulus varieties passed over 9.0 T/ha (2021). The triticale average production/country increased from 2.5 T/ha (2007) to over 3.4 T/ha in the past 10 years and now to 4.6 T/ha. Most of the cultivated varieties originated from the Fundulea (Dr. Gh. Ittu). Farmers in the western part of Romania appreciate triticales, but they also have certain grievances that breeders strive to correct.

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“…The difference in genetic gain realized across the world can be due to many factors including the available crop growth duration, agronomic practices followed, and prevailing weather and soil conditions. However, breeding improved varieties by nicking various agronomic traits has always been the main path to maximize the genetic gain through per unit area yield increments (Zhang et al, 2016 ; Gao et al, 2017 ; Mingliang et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Genetic Gain in Yield and Associated Changes in Agronomic Traits in Wheat Cultivars Developed Between 1900 and 2016 for Irrigated Ecosystems of Northwestern Plain Zone of India

et al. 2021

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Knowledge about the yield gain over the years due to associated changes in the yield component traits is essential for a critical understanding of yield-limiting factors. To estimate genetic gain in grain yield (GY) and component agronomic traits of wheat varieties released between 1900 and 2016 for northwestern plain zone (NWPZ) of India and to identify agronomic and/or genetic basis of the realized gains, two sets of wheat varieties comprising mega varieties and two recently developed varieties were evaluated under timely sown, tilled, and early sown conservation agriculture (CA) conditions for four consecutive years under irrigated conditions. The average annual genetic gain in GY since 1,905 under timely sown irrigated conditions was found to be 0.544% yr−1 over the average of all varieties and 0.822% yr−1 (24.27 kg ha−1 yr−1) over the first released variety, NP4. The realized mean yield increased from 2,950 kg ha−1 of the variety NP4 released in 1,905–5,649 kg ha−1 of HD3086 released in 2014. Regression analysis revealed a linear reduction in height and peduncle length (PL) over the years with a simultaneous and linear increase in biomass at the rate of 43.9 kg ha−1 yr−1 or relatively at 0.368% yr−1 mainly because of delayed heading and increased crop duration. Regression analysis showed no linear trend for tiller number and thousand-grain weight (TGW). Though harvest index (HI) was found to linearly increase relatively at the rate of 0.198% per annum, polynomial regression improved the fitness of data with the indication of no increase in HI since 1982. Interestingly, genetic gain evaluation under early sown CA conditions for 4 years showed similar relative gain (RG) [a relative improvement in varieties across breeding periods (BP)] (0.544% yr−1) but with a higher absolute value (29.28 kg ha−1 yr−1). Major mega varieties like Kalyan Sona, HD2009, PBW 343, HD2967, and HD3086, which occupied a comparatively larger area, were found highly plastic to the improvements in the production environment under timely sown conditions.

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Wheat genetic gains for two distinct management schemes in China: An analysis of elite spring type genotypes

Cited by 5 publications

References 18 publications

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Triticale Improvement: Problems and Prospects in the West Part of Romania

Genetic Gain in Yield and Associated Changes in Agronomic Traits in Wheat Cultivars Developed Between 1900 and 2016 for Irrigated Ecosystems of Northwestern Plain Zone of India

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