Strategic Identification of New Genetic Diversity to Expand Lentil (Lens culinaris Medik.) Production (Using Nepal as an Example)

Neupane, Sandesh; Dhakal, Rajeev; Wright, Derek; Shrestha, Deny K.; Dhakal, Bishnu P.; Bett, Kirstin E.

doi:10.3390/agronomy11101933

Cited by 2 publications

(1 citation statement)

References 21 publications

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“…The differences between the Mediterranean lentil landraces for the time to flowering could also be attributed to the time of sowing adopted in each region (Idrissi et al 2018). Additionally, both early and later-flowering were found among genotype from different Mediterranean countries (Neupane et al 2021). Early-flowering observed in Moroccan landraces is the result of successive selection for avoidance of terminal drought and heat which are considered as important limiting factors for lentil production in Morocco.…”

Section: Phenotypic Diversity Of Accessions According To Geographical...mentioning

confidence: 99%

Assessment of the phenotypic diversity and agronomic performance of a Mediterranean lentil collection under rainfed conditions: towards efficient use in breeding programs for adaptation to Mediterranean-type environment

Zeroual,

Mitache,

Baidani

et al. 2024

Preprint

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The improvement of lentil productivity and resilience to climate change requires the deployment of breeding approaches and sustainable agronomic practices. Germplasm from the Mediterranean region could be an important source of useful traits for lentil breeding programs. Additionally, no-tillage could also contribute to maintaining lentil productivity in drought-prone environments. However, there are few studies on breeding for adaptation to no-tillage in lentil, as this practice can create growing conditions that differ from those under conventional tillage. The main objectives of this study were to assess the phenotypic diversity of a lentil collection in different environments and to select promising accessions that can be used in lentil breeding programs. A Mediterranean lentil collection of 119 accessions was evaluated in Morocco (under no-till and conventional tillage) and in Turkey (during two growing seasons) under rainfed conditions. There was significant phenotypic variation among accessions for traits assessed. In addition, significant genotype-by-environment interaction effects were observed for grain yield and time to flowering. Moroccan landraces were the earliest to flower compared to landraces from Italy, Turkey, and Greece. Greek landraces displayed the highest mean values of hundred-seed weight. Landraces outperformed advanced lines in low-yielding environment (Turkey in 2022 season) in which higher yield was recorded in Turkish landraces, followed by Moroccan landraces. The high-yielding accessions identified in different environments could be used as donors in breeding programs.

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Section: Phenotypic Diversity Of Accessions According To Geographical...mentioning

confidence: 99%

Assessment of the phenotypic diversity and agronomic performance of a Mediterranean lentil collection under rainfed conditions: towards efficient use in breeding programs for adaptation to Mediterranean-type environment

Zeroual,

Mitache,

Baidani

et al. 2024

Preprint

View full text Add to dashboard Cite

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Phenotypic Diversity Analysis of Lens culinaris Medik. Accessions for Selection of Superior Genotypes

et al. 2022

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Knowledge of genetic diversity in lentil is imperative for selection of parental genotypes that could yield heterotic combinations. The aim of the present study was to investigate the genetic diversity among 43 diverse lentil genotypes to identify complementary and unique genotypes for breeding programmes. Field experimentation was carried out in two winter seasons (2019–2020 and 2020–2021) in Hisar (29°10′ N, 75°46′ E) using randomized block design (RBD) with three replications. The chi-square test analysis showed significant genotypic variation for qualitative traits. There was substantial genetic variation among the genotypes for most quantitative traits, connoting the need to exploit a high degree of genetic variation through selection. Multiple-trait selection would also be beneficial, as seed yield was positively associated with most quantitative traits. The principal component analysis recognized seed yield (SY), days to 50% flowering (DTF), days to maturity (DTM), number of pods per plant (NPP), number of primary branches (NPB), plant height (PH) and biological yield (BY) as target traits that prominently described variation within lentil genotypes. The cluster analysis discriminated the lentil genotypes into five discrete clusters. Cluster III and V were the most distant groups, implying wider diversity among the genotypes of these groups. Furthermore, cluster analysis identified genotypes IPL 316, LH 17-19, LH 18-04, LH 17-17, IPL 81 and Pant L-8 as high-yielding genotypes, while L 4717 was identified as an early-maturing genotype. Therefore, to obtain a broad spectrum of early-maturing high-yielding segregants, the selected genotypes may serve as superior parental lines for structuring breeding strategies.

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Strategic Identification of New Genetic Diversity to Expand Lentil (Lens culinaris Medik.) Production (Using Nepal as an Example)

Cited by 2 publications

References 21 publications

Assessment of the phenotypic diversity and agronomic performance of a Mediterranean lentil collection under rainfed conditions: towards efficient use in breeding programs for adaptation to Mediterranean-type environment

Assessment of the phenotypic diversity and agronomic performance of a Mediterranean lentil collection under rainfed conditions: towards efficient use in breeding programs for adaptation to Mediterranean-type environment

Phenotypic Diversity Analysis of Lens culinaris Medik. Accessions for Selection of Superior Genotypes

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