Evaluation of quantitative traits of durum wheat lines/varieties in international observation nurseries and yield trials

• Main Authors: Khodarahmim, Manoochehr, Majid Taherian , , Sirus Tahmasebi, Alat Jafarby, Jabar, Tahmasebi, Sirus, Bahari, Mohammad
• Format: Publication
• Language: Persian
• Published: Karaj (Iran) Seed and Plant Improvement Institute - SPII 2010
• Subjects: BLE; EXPERIMENTACION; EXPERIMENTATION; http://www.fao.org/aos/agrovoc#c_2758; http://www.fao.org/aos/agrovoc#c_8373; http://www.fao.org/aos/agrovoc#c_8488; RENDEMENT; RENDIMIENTO; TRIGO; WHEATS; YIELDS

To study, compare and achieve new durum wheat cultivars more high yielding comparing to widely grown varieties, comprising resistance to diseases, lodging, shuttering and suitable quality for producing of Semolina and determination of valuable plant genetic resources received from International centers to be used in crossing blocks and active contribution, this research project including the following three nurseries were implemented in 2007- 2008cycle. 1-IDYN(International Durum Yield Nursery) 2-EDUYT(Elite Durum Unreplicated Yield Trial ) 3-IDSN(International Durum Screening Nursery) In all replicated trials' grain yield of each entry was weighed separately. Combined variance analysis were implemented on the collected data based on statistical rules. High yielding Lines / Varieties, significant at 5% level were selected for advance trials of next crop season. Plot size in replicated and observation nurseries were 3,6 mv and 1,2 mv respectively. Lines / Varieties in observation nurseries were planted in no replicated trials, were studied in observation nurseries and measurement and calculation of results were based on Rank method and each location was assumed as one replication. Finally based on Rank method , comparing the yield of entries with checks and considering favorite morphological characters 66, 44 and 18 superior lines/varieties were selected from IDSN , EDUYT and IDYN trials respectively for temprat area and 61, 43 and 17 for warm area.