检索结果-南通市图书馆

Genetic gains in wheat in Turkey:Winter wheat for irrigated conditions

The Crop Journal 2015年第6期3卷 507-516页

作者： Nurberdy Gummadov Mesut Keser Beyhan Akin Mustafa Cakmak Zafer Mert Seyfi Taner Irfan Ozturk Ali Topal selami yazar Alexey Morgounov International Maize and Wheat Improvement Center(CIMMYT) International Center for Agricultural Research in the Dry Areas(ICARDA) Transitional Zone Agricultural Research Institute Field Crops Central Research Institute Bahri Dagdas International Agricultural Research Institute Trakya Agricultural Research Institute Selcuk University Faculty of Agriculture

The study estimated genetic gain for yield and other traits in winter wheat released for irrigated environments in Turkey from 1963 to 2004. Yield trials including 14 varieties were grown in 16 environments from 2008 to 2012 in provinces of Konya, Eski?ehir, Ankara, and Edirne. The highest yields were achieved by recent varieties Kinaci-97(5.48 t ha^(-1)),Cetinel-2000(5.39 t ha^(-1)), Alpu-2001(5.44 t ha^(-1)), Ahmetaga(5.35 t ha^(-1)), and Ekiz-2004(5.42 t ha^(-1)) compared to older varieties Yektay-406(4.17 t ha^(-1)) and Bezostaya-1(4.27 t ha^(-1))released in the 1960 s. The progress reached in grain yield in 20 years was 1.16 t ha^(-1)or58 kg ha^(-1)(1.37%) per year. This gain was mainly achieved through shorter plant height and increased harvest index. There was no clear tendency of changes in specific yield components demonstrating that new high-yielding varieties may have different ways to reach their yield potentials. The yield gains were accompanied by improved stripe rust and leaf rust resistances primarily based on adult plant resistance genes. The grain quality of the new varieties did not deteriorate over time although most of them were inferior to the bread-making quality check Bezostaya-1, a feature that may require attention in future breeding.

关键词： Bread wheat Yield potential Reduced plant height Irrigated environment

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Genetic gains in wheat in Turkey: Winter wheat for dryland conditions

引用

The Crop Journal 2017年第6期5卷 533-540页

作者： Mesut Keser Nurberdy Gummadov Beyhan Akin Savas Belen Zafer Mert Seyfi Taner Ali Topal selami yazar Alexey Morgounov Ram Chandra Sharma Fatih Ozdemir International Center for Agricultural Research in the Dry Areas (ICARDA) Yenimahalle Ankara 06170 Turkey International Maize and Wheat Improvement Center (CIMMYT) Yenimahalle Ankara 06170 Turkey Transitional Zone Agricultural Research Institute Tepebasi Eskisehir 26005 Turkey Central Research Institute for Field Crops Ankara 06170 Turkey Bahri Dagdas International Agricultural Research Institute Konya 42050 Turkey Department of Field Crops Faculty of Agriculture Selcuk University Konya 42030 Turkey International Center for Agricultural Research in the Dry Areas (ICARDA) Tashkent Uzbekistan

Wheat breeders in Turkey have been developing new varieties since the 1920 s, but few studies have evaluated the rates of genetic improvement. This study determined wheat genetic gains by evaluating 22 winter/facultative varieties released for rainfed conditions between 1931 and2006. The study was conducted at three locations in Turkey during 2008-2012, with a total of 21 test sites. The experimental design was a randomized complete block with four replicates in2008 and 2009 and three replicates in 2010-2012. Regression analysis was conducted to determine genetic progress over time. Mean yield across all 21 locations was 3.34 t ha^(-1) but varied from 1.11 ha^(-1) to 6.02 t ha^(-1) and was highly affected by moisture stress. Annual genetic gain was 0.50% compared to Ak-702, or 0.30% compared to the first modern landmark varieties. The genetic gains in drought-affected sites were 0.75% compared to Ak-702 and0.66% compared to the landmark varieties. Modem varieties had both improved yield potential and tolerance to moisture stress. Rht genes and rye translocations were largely absent in the varieties studied. The number of spikes per unit area decreased by 10% over the study period,but grains spike^(-1) and 1000-kemel weight increased by 10%. There were no significant increases in harvest index, grain size, or spike fertility, and no significant decrease in quality over time. Future use of Rht genes and rye translocations in breeding programs may increase yield under rainfed conditions.

关键词： Genetic gain Rainfed wheat production Winter wheat Yield

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：