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Nima, New Winter Oilseed Rape Variety for Cultivation in the Cold and Moderately Cold Regions of Iran | ||
| یافتههای تحقیقاتی در گیاهان زراعی و باغی | ||
| Article 6, Volume 8, Issue 1, July 2019, Pages 61-76 PDF (1.06 M) | ||
| Document Type: Release of the variety | ||
| DOI: 10.22092/rafhc.2019.114653.1102 | ||
| Authors | ||
| Bahram Alizadeh* 1; Mohammad Yazdandust Hamedani2; Abbas Rezaei Zad3; Shiva Azizinia4; Majid Khiyavi5; Amir Hossein Shirani Rad1; Farzad Javidfar1; Bahman Pasban Eslam6; Marefat Mostafavi Rad7; Farnaz Shariati1; Siyamak Rahmanpour Ozan1; Mohammad Hossein Alem Khumaram2; Bahram Majd Nasiri8; Hassan Amiri Oghan1; Asadolah Zareei Siahbidi9 | ||
| 1Seed and Plant Improvement Institute, Agricultural Research, Education and Extension Organization, Karaj, Iran. | ||
| 2Field and Horticultural Crops Research Department Research Department, Hamedan Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization, Hamedan, Iran. | ||
| 3Seed and Plant Improvement Research Department, Kermanshah Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization, Kermanshah, Iran. | ||
| 4Tehran University- Pardis Aboureihan, Tehran, Iran. | ||
| 5Field and Horticultural Crops Research Department, Research Department, Zanjan Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization, Zanjan, Iran. | ||
| 6Seed and Plant Improvement Research Department, Azarbaijan Sharghi Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization, Tabriz, Iran. | ||
| 7Assistant Professor, Seed and Plant Improvement Research Department, Guilan Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization, Guilan, Iran. | ||
| 8Seed and Plant Improvement Research Department, Isfahan Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization, Isfahan, Iran. | ||
| 9Field and Horticultural Crops Research Department, Agricultural and Natural Resources Research and Education Center, Kermanshah Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization, Kermanshah, Iran. | ||
| Abstract | ||
| Nima variety, is resulted from the selection and purification of single plants in segregating generations derived from the cross Okapi´Modena. Single plants in F2 and their segregating generations were cultivated for five consecutive years until pure-lines were obtained in F6 generation. Selected pure lines were evaluated in a preliminary yield trial conducted in Hamedan in 2008-09. The result showed that seed yield of line SW102 (Nima) was 7% higher than Okapi (check cultivar). The study of selected lines in Karaj, Hamedan, Arak, Khosroshah near Tabriz and Islamabad-e-Gharb during 2009 and 2010 showed that seed yield of line SW102 (Nima) was 18% higher than Okapi. Based on stability parameters of environmental coefficient of variation and mean and variance of ranks for grain yield, SW102 had a good yield stability across different environments in all experinments. Evaluation of resistance to common oilseed rape diseases in Iran indicated relative resistance of SW102 to blackleg and sclerotinia diseases. Results of on- farm trials in Hamedan in 2012 showed that SW102 with grain yield of 4983 kgha-1 produced the highest seed yield. Results of on- farm trials in Isfahan showed that grain yield of SW102 and Okapi under drought stress decreased 13.4 and 23.6%, respectively, compared to normal irrigation. Based on desirable characteristics of line SW102 such as high grain and oil yield, good adaptability, relative tolerance to terminal drought stress and resistance to blackleg and sclerotinia stem rot compared to Okapi (check), this line was released as Nima and is recommended for cultivation in cold and moderately cold regions of Iran. | ||
| Keywords | ||
| Oilseed rape; release; variety; yield stability | ||
| References | ||
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