Oil and seed yield stability in a worldwide collection of safflower under arid environments of Iran
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- 作者：Fatemeh Ebrahimi ; Mohammad Mahdi Majidi ; Ahmad Arzani ; Ghasem Mohammadi-Nejad
- 关键词：Safflower ; Stability ; Oil and seed yield
- 刊名：Euphytica
- 出版年：2016
- 出版时间：November 2016
- 年：2016
- 卷：212
- 期：1
- 页码：131-144
- 全文大小：531 KB
- 刊物类别：Biomedical and Life Sciences
- 刊物主题：Life Sciences
Plant Physiology
Plant Sciences
Ecology - 出版者：Springer Netherlands
- ISSN：1573-5060
- 卷排序：212
文摘
The genotype × environment interaction (GEI) have direct impact on stability of genotypes grown under varied environmental conditions. In the present study, the additive main effects and multiplicative interaction (AMMI) model was employed to investigate GEI, stability and adaptation of a worldwide germplasm of safflower (Carthamus tinctorius L.) for seed and oil yield. The experiments were conducted at seven environments (combination of location, year and irrigation regimes) using 100 safflower genotypes. The results of the AMMI analysis showed that the main effects due to genotype, environment, and GEI as well as the first four interaction principle component axes were significant for both seed and oil yield. Environment was the major source of variability, followed by GEI. The results of AMMI biplot and stability parameters including AMMI stability value (ASV), sum of the absolute value of IPC scores (SIPC) and genotype selection index (GSI) revealed that genotypes G60 (originating from Jordan) and G90 (originating from Kerman, Iran) had general adaptation under drought and normal conditions. Genotype G21, originating from Greece, exhibited high adaptation and yield under the normal environments. The AMMI biplot determined genotypes G65 (originating from USA) and G40 (originating from Tajikistan) as the superior to be grown under drought stress conditions. The results eventually indicated that the AMMI biplot is an informative method to explore the stability and adaptation patterns of genotypes in practical plant breeding.