Interactive Effect of Location and N- Fertilizer Rates on Grain Quality Traits of Bread Wheat Varieties at Arsi Zone, South-Eastern Ethiopia

Through years of research, the Ethiopian Agricultural Research Organization has recommended a number of improved bread-wheat varieties for production in the different climatic zones, along with accompanying technology packages. In areas such as the Jijiga plains, however, adoption of these varieties by the farmers has been very limited. The principal objective of the study was, therefore, to investigate the reasons why farmers are reluctant to adopt high-yielding improved wheat varieties, and to identify farmers' preferences. An assessment study followed by participatory evaluation of the performance of five improved bread-wheat (Triticum aestivum) varieties and a local control was carried out under farmers' management practices. The trial was conducted at 10 locations (across three districts) on the Jijiga plains for two consecutive years (the 1999 and 2000 cropping seasons) and involved 30 farmers. Farmers' preferred varieties were identified using preference ranking. The results showed that farmers refrained from the adoption of some ‘improved’ varieties of bread wheat that were provided through the extension services because the varieties performed poorly under farmers' conditions. The study also showed that farmers do have multiple criteria for evaluating the varieties apart from yield, though the latter was the major parameter for recommending and releasing varieties for multi-locations. Farmers identified earliness, yield, and quality as the main criteria for adoption of wheat varieties. Accordingly, variety HAR-710 stood first in terms of yield (2.56 t ha−1) and other parameters, followed by PAVON -76 (2.49 t ha−1). Though its grain yield was relatively lower than the improved ones, the local control was preferred to some improved varieties used in this study for other quality parameters. The study highlighted the need for re-orienting agricultural research towards involving farmers at the appropriate stages of technology identification.

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Estimation of sedimentation and grain quality indicators of the winter bread wheat varieties

Grain Economy of Russia ◽

10.31367/2079-8725-2021-77-5-35-40 ◽

2021 ◽

pp. 35-40

Author(s):

О. A. Nekrasova ◽

N. S. Kravchenko ◽

N. G. Ignatieva ◽

M. M. Kopus ◽

D. M. Marchenko

Keyword(s):

Bread Wheat ◽

Quality Indicators ◽

Grain Quality ◽

Research Work ◽

Wheat Varieties ◽

Protein Percentage ◽

Winter Bread Wheat ◽

Study Results ◽

Biochemical Estimation ◽

Variety Testing

The current paper has presented the study results of SDS-sedimentation and grain quality indicators of the winter bread wheat varieties in an interstation variety testing from the research institutions of the Russian Federation, Ukraine and France. The research work was carried out in 2017–2019 in the field of the laboratory for breeding winter bread wheat, the forecrop was maize for grain. The purpose of the research was to estimate SDS-sedimentation, protein percentage in grain, quantity and quality of gluten in the winter bread wheat varieties of interstation variety testing, for the subsequent introduction of the best samples in the breeding process aimed at improving grain quality. Grain quality indicators of the winter bread wheat varieties were identified in the laboratory for biochemical estimation of breeding material and grain quality using IR spectroscopy on ‘SpektraStar 2200’ analyzer. There was established that according to the SDS-sedimentation most of the samples corresponded to strong wheat (50–63 ml). There have been identified the genotypes with the highest values of this trait, such as ‘Shef’ (58 ml), ‘Nakhodka’ (59 ml) and ‘Don 107’ (61 ml). The largest gluten content in grain was identified in the varieties ‘Don 107’, ‘Shef’, ‘Kavalerka’, ‘Timiryazevka 150’ and ‘Nakhodka’ (25.5–26.2%). The largest protein percentage in grain has been identified in the varieties ‘Don 107’, ‘Shef’, ‘Aksinya’, ‘Nakhodka’ and ‘Timiryazevka 150’ (12.5-12.8%). The varieties ‘Don 107’, ‘Shef’, ‘Nakhodka’ and ‘Timiryazevka 150’ were identified according to the studied traits and were recommended to be involved in the breeding process as parental forms.

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Multi-environment analysis of grain quality traits in recombinant inbred lines of a biparental cross in bread wheat (Triticum aestivum L.)

Cereal Research Communications ◽

10.1556/0806.47.2019.002 ◽

2019 ◽

pp. 1-11

Author(s):

G. Krishnappa ◽

A.K. Ahlawat ◽

R.B. Shukla ◽

S.K. Singh ◽

...

Keyword(s):

Triticum Aestivum ◽

Bread Wheat ◽

Recombinant Inbred ◽

Grain Quality ◽

Recombinant Inbred Lines ◽

Triticum Aestivum L ◽

Inbred Lines ◽

Quality Traits ◽

Environment Analysis

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Economic and biological characteristics of the spring bread wheat varieties developed in the Voronezh FASC named after V. V. Dokuchaev

Grain Economy of Russia ◽

10.31367/2079-8725-2021-73-1-31-38 ◽

2021 ◽

Vol 1 (1) ◽

pp. 31-38

Author(s):

E. I. Malokostova

Keyword(s):

Environmental Factors ◽

Bread Wheat ◽

Grain Quality ◽

Seeding Rate ◽

Spring Bread Wheat ◽

Wheat Varieties ◽

Potential Productivity ◽

High Productivity ◽

Study Results ◽

Productivity Potential

The current paper has discussed information on the characteristics and properties of the zoned spring bread wheat varieties developed in the Federal Agricultural Scientific Centre named after V.V. Dokuchaev. The purpose of the study was to develop new spring bread wheat varieties with high productivity and grain quality, resistant to unfavorable biotic and abiotic environmental factors and adapted to the conditions of the Central Blackearth Region. In the FASC named after V.V. Dokuchaev there were developed such highly productive spring bread wheat varieties as ‘Krestyanka’, ‘Kurskaya 2038’, ‘Voronezhskaya 12’, ‘Chernozemnouralskaya 2’ and ‘Voronezhskaya 18’, which are currently approved for use in production. There were analyzed the study results of productivity, grain quality and resistance to unfavorable environmental factors in different growing periods of the varieties. There was found an unambiguous productivity excess of the developed varieties over the standard ones. The endurance of the presented varieties in unfavorable conditions indicates an increase in the stability of the main traits that characterize productivity, resistance to drought, diseases, and lodging. There has been established, that in terms of grain quality the varieties ‘Krestyanka’ and ‘Chernozemnouralskaya 2’ belong to strong wheat with potential productivity of 7.20 and 6.65 t/ha, respectively. The varieties ‘Kurskaya 2038’, ‘Voronezhskaya 12’ and ‘Voronezhskaya 18’ are valuable wheat varieties with realized productivity potential of 5.31, 5.70 and 6.96 t/ha, respectively. There has been identified that the varieties ‘Chernozemnouralskaya 2’ and ‘Voronezhskaya 18’ are recommended to sow with a seeding rate of 6.0 million germinating grains per hectare for the rapid seed reproduction and obtaining high gross grain yield, since productivity, yield of conditioned seeds, germination and 1000-grain weight at this rate was the best. The sowing dates of these varieties were early.

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