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Effect of Cultivar and Environment on Seed Yield in Alfalfa

2002; Wiley; Volume: 42; Issue: 1 Linguagem: Inglês

10.2135/cropsci2002.0045

1435-0653

Eduardo-Daniel Bolaños-Aguilar, C. Huyghe, C. Ecalle, J. Hacquet, Bernadette Julier,

Wheat and Barley Genetics and Pathology

Crop ScienceVolume 42, Issue 1 p. 45-50 Alfalfa Effect of Cultivar and Environment on Seed Yield in Alfalfa Eduardo-Daniel Bolaños-Aguilar, Eduardo-Daniel Bolaños-Aguilar INRA, Unité de Génétique et d'Amélioration des Plantes Fourragères, 86600 Lusignan, FranceSearch for more papers by this authorChristian Huyghe, Corresponding Author Christian Huyghe huyghe@lusignan.inra.fr INRA, Unité de Génétique et d'Amélioration des Plantes Fourragères, 86600 Lusignan, FranceCorresponding author (huyghe@lusignan.inra.fr)Search for more papers by this authorChristian Ecalle, Christian Ecalle INRA, Unité de Génétique et d'Amélioration des Plantes Fourragères, 86600 Lusignan, FranceSearch for more papers by this authorJacques Hacquet, Jacques Hacquet Fédération Nationale des Agriculteurs Multiplicateurs de Semences, 86600 Lusignan, FranceSearch for more papers by this authorBernadette Julier, Bernadette Julier INRA, Unité de Génétique et d'Amélioration des Plantes Fourragères, 86600 Lusignan, FranceSearch for more papers by this author Eduardo-Daniel Bolaños-Aguilar, Eduardo-Daniel Bolaños-Aguilar INRA, Unité de Génétique et d'Amélioration des Plantes Fourragères, 86600 Lusignan, FranceSearch for more papers by this authorChristian Huyghe, Corresponding Author Christian Huyghe huyghe@lusignan.inra.fr INRA, Unité de Génétique et d'Amélioration des Plantes Fourragères, 86600 Lusignan, FranceCorresponding author (huyghe@lusignan.inra.fr)Search for more papers by this authorChristian Ecalle, Christian Ecalle INRA, Unité de Génétique et d'Amélioration des Plantes Fourragères, 86600 Lusignan, FranceSearch for more papers by this authorJacques Hacquet, Jacques Hacquet Fédération Nationale des Agriculteurs Multiplicateurs de Semences, 86600 Lusignan, FranceSearch for more papers by this authorBernadette Julier, Bernadette Julier INRA, Unité de Génétique et d'Amélioration des Plantes Fourragères, 86600 Lusignan, FranceSearch for more papers by this author First published: 01 January 2002 https://doi.org/10.2135/cropsci2002.4500Citations: 15 The first author was financially supported by CONACYT (National Science and Technology Council from Mexico), INIFAP (Institute for Forestry, Agriculture, and Livestock Research from Mexico) and SFERE (French Society for Educational Resource Exportation). Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract Seed yield of alfalfa (Medicago sativa L.) is important in determining the effective distribution of new cultivars to farmers. Many genetic and environmental factors affect seed yield. This study was conducted to explain seed yield variation induced by either environmental conditions or cultivars. We analyzed seed yield, aboveground phytomass, harvest index, and seed yield components for a set of 12 cultivars at four locations across France in each of three years. Each location × year combination was considered an environment. Seed weight, number of pods per inflorescence, number of seeds per pod, and mean seed weight were measured. Mean seed yield was 801 kg ha−1 Large variation in seed yield was found among cultivars and environments. The cultivar × environment interaction was significant. Among environments, seed yield was highly correlated with aboveground phytomass at harvest (r = 0.94) as the lowest seed yields were obtained in the seeding year. The cultivars most adapted to grazing showed the lowest seed yields. Seed yield was genetically correlated with lodging resistance (r = −0.89) and harvest index (r = 0.99). The mean harvest index was 12.7%. The seed weight per inflorescence showed a high broad-sense heritability (0.58) and a high genetic correlation with seed yield (r = 0.91) and with harvest index (r = 0.96). Variation in seed weight per inflorescence was associated with variation in the number of seeds per pod and number of pods per inflorescence. Seed weight per inflorescence appears to have a strong genetic association with seed yield in alfalfa. Environments with high aboveground phytomass potential also have high seed yield potential. Citing Literature Volume42, Issue1January–February 2002Pages 45-50 RelatedInformation