Principles of Variety Maintenance for Quality Seed Production

Weissmann, Elmar A.; Yadav, Rajesh; Seth, Rakesh; Bhaskar, K. Udaya

doi:10.1007/978-981-19-5888-5_8

Cited by 4 publications

(3 citation statements)

References 6 publications

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“…This method was initially developed by Hopkins for corn and further modified by Lonnquist and Compton and Comstock (Hopkins, 1899;Lonnquist, 1964;Compton and Comstock, 1976). Nowadays ear to row method is routinely used in wheat, rice, barley among other crops (Yamamoto, 1972;Lammerts van Bueren et al, 2011;Greveniotis et al, 2019;Weissmann et al, 2023). In our adapted approach, we select ears/pods from single plants with desirable traits and plant their seeds in separate rows in the subsequent growing season.…”

Section: Breeding Schemesmentioning

confidence: 99%

Harnessing monocrop breeding strategies for intercrops

Dubey,

Zustovi,

Landschoot

et al. 2024

Front. Plant Sci.

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Intercropping is considered advantageous for many reasons, including increased yield stability, nutritional value and the provision of various regulating ecosystem services. However, intercropping also introduces diverse competition effects between the mixing partners, which can negatively impact their agronomic performance. Therefore, selecting complementary intercropping partners is the key to realizing a well-mixed crop production. Several specialized intercrop breeding concepts have been proposed to support the development of complementary varieties, but their practical implementation still needs to be improved. To lower this adoption threshold, we explore the potential of introducing minor adaptations to commonly used monocrop breeding strategies as an initial stepping stone towards implementing dedicated intercrop breeding schemes. While we acknowledge that recurrent selection for reciprocal mixing abilities is likely a more effective breeding paradigm to obtain genetic progress for intercrops, a well-considered adaptation of monoculture breeding strategies is far less intrusive concerning the design of the breeding programme and allows for balancing genetic gain for both monocrop and intercrop performance. The main idea is to develop compatible variety combinations by improving the monocrop performance in the two breeding pools in parallel and testing for intercrop performance in the later stages of selection. We show that the optimal stage for switching from monocrop to intercrop testing should be adapted to the specificity of the crop and the heritability of the traits involved. However, the genetic correlation between the monocrop and intercrop trait performance is the primary driver of the intercrop breeding scheme optimization process.

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Section: Breeding Schemesmentioning

confidence: 99%

Harnessing monocrop breeding strategies for intercrops

Dubey,

Zustovi,

Landschoot

et al. 2024

Front. Plant Sci.

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“…Relevant varieties are those that are released for commercial purposes with proper seed multiplication and maintenance mechanisms (Weissmann et al. , 2023).…”

Section: Production and Importance Of Groundnut In Tanzaniamentioning

confidence: 99%

“…Taken together, over 17 relevant improved groundnut varieties have been released in Tanzania to date (Mwalongo et al, 2020). Relevant varieties are those that are released for commercial purposes with proper seed multiplication and maintenance mechanisms (Weissmann et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Farmers’ heterogeneous preferences for traits of improved varieties: Informing demand-oriented crop breeding in Tanzania

Regassa,

Miriti,

Melesse

2023

Ex. Agric.

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Summary Understanding farmers’ preferences and willingness to pay for different traits is critical for demand-driven varietal development and designing targeted strategies that stimulate adoption of varieties by farmers. This study uses choice experiment data from a random sample of 1299 Tanzanian farmers to analyze their preferences for traits of groundnut varieties, investigate trade-offs involved in valuation of attributes, and explore heterogeneity in preferences. Results reveal that farmers have strong preferences for groundnut varieties that are high yielding, tolerant to environmental stresses, early-maturing, red-colored, and fetching high sale prices in grain markets. Farmers are willing to pay the highest premium for high-yielding attributes, closely followed by the tolerance trait. Further, a latent class analysis identifies four distinct classes of farmers, confirming considerable heterogeneity in farmers’ preferences for various groundnut traits. A specific distinction is notable between preferences of consumption-oriented and market-oriented farmer classes. Our results have important implications for demand-driven variety development and targeted dissemination of improved varieties.

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Integrating NIR Hyperspectral Techniques with Neural Network for Barley Seeds Classification

Kumar,

Mahajan

2024

2024 International Conference on Smart Systems for Applications in Electrical Sciences (ICSSES)

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Principles of Variety Maintenance for Quality Seed Production

Cited by 4 publications

References 6 publications

Harnessing monocrop breeding strategies for intercrops

Harnessing monocrop breeding strategies for intercrops

Farmers’ heterogeneous preferences for traits of improved varieties: Informing demand-oriented crop breeding in Tanzania

Integrating NIR Hyperspectral Techniques with Neural Network for Barley Seeds Classification

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