Abstract
AbstractPotato is the most important crop in Peru and late blight is the main disease affecting the crop. However, new varieties that are resistant to late blight often lack other traits that farmers and consumers prefer. Using participatory varietal selection, this study seeks to identify clones with high potential to become varieties with resistance to late blight but also feature a high marketable tuber yield and other preferred agronomic traits. During 2016–2017, 36 clones previously selected for high levels of resistance to late blight from population B developed by the International Potato Center, and three varieties used as controls (INIA 302 Amarilis moderately resistant, INIA303 Canchan and Yungay susceptible to late blight), were evaluated in five Peruvian locations. At harvest, five clones were selected based on (i) evaluations made by farmers through Participatory Varietal Selection, (ii) analysis of mixed models and Best Linear Unbiased Predictors for tuber yield, (iii) low glycoalkaloid content in tubers, and (iv) good organoleptic quality. These clones were evaluated again during 2017–2018 in four locations. Resistance to late blight and good marketable tuber yields were identified as the most important criteria for the selection of a new potato variety. The clones CIP308488.92, CIP308495.227 and CIP308478.59 were selected as promising clones having resistance to late blight and tuber yield superior to the local varieties, INIA-303 Canchan, Yungay, as well as good organoleptic quality and low glycoalkaloid content. These clones can be suggested for variety release in similar agroecological environments.
Publisher
Springer Science and Business Media LLC
Subject
Agronomy and Crop Science,Food Science,Agronomy and Crop Science,Food Science
Reference29 articles.
1. Abebe GK, Bijman J, Pascucci S, Omta O (2013) Adoption of improved potato varieties in Ethiopia: the role of agricultural knowledge and innovation system and smallholder farmers’ quality assessment. Agric Syst 122:22–32. https://doi.org/10.1016/j.agsy.2013.07.008
2. Arcos J, Gastelo M, Holguin V (2015) INIA 317 – Altiplano, variedad de papa con buena adaptación en la región altiplánica del Perú. Revista Latinoamericana de la Papa 19(2):68–75. https://doi.org/10.37066/ralap.v19i2.234
3. Badstue LB, Hellin J, Berthaud J (2012) Re-orienting participatory plant breeding for wider impact. Afr J Agric Res 7(4). https://doi.org/10.5897/AJAR10.1146
4. Bajgai Y, Dochen T, Wangchuk P, Kadian MS, Felde zum T, Lefebvre M, Lobzang, Arya S, Wangdi T, Gyeltshen T, Wangdi N (2018) Participatory varietal selection of potato and agronomic performance with farmers’ feedback on new varieties. Bhutanese Journal of Agriculture. ISSN 2616-3926. 12p
5. Burgos G, Sosa P, Zum Felde T (2014) Procedures for chemical analysis of potato and sweet potato samples at CIP’s Quality and Nutrition Laboratory. Lima, Peru. International Potato Center (CIP), Global Program Genetics and Crop Improvement. 23 p
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献