GENETIC IMPROVEMENT IN GRAIN YIELD AND RELATED TRAITS OF OAT CULTIVARS RELEASED IN CANADA DURING 1921–1997

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MORADI MOHAMMAD; REZAEI ABD ALMAJID; ARZANI A.

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Journal: Journal of Water and Soil Science Year:2008 | Volume:11 | Issue:42 (A) Page(s): 105-112

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Title

GENETIC IMPROVEMENT IN GRAIN YIELD AND RELATED TRAITS OF OAT CULTIVARS RELEASED IN CANADA DURING 1921–1997

Author(s)

MORADI MOHAMMAD | REZAEI ABD ALMAJID | ARZANI A. | Issue Writer Certificate

Keywords

BREEDING CONTRIBUTIONQ3

GENETIC IMPROVEMENTQ3

OATSQ3

Abstract

Evaluation of GENETIC IMPROVEMENT of grain yield and other traits in cultivars released in different years is useful to determine plant breeding impact on grain yield improvement, to define future selection criteria and to identify the desirable environment and traits for further assessment. This study was conducted to evaluate the GENETIC IMPROVEMENT for grain yield and other traits of twelve oat (Avena sativa L.) cultivars released in Canada during 1921- 1997, at Research Farm, College of Agriculture, Isfahan University of Technology, during 2001-3 in a randomized complete block design with three replications. The regression of mean grain yield on released year of the cultivars showed that the rate of increase in grain yield during a 76-year period is 32.63 kg h-1 year-1 or 0.63% per year. Breeding programmes have inereased harvest index, grain number per panicle and fertile tillers /m2. The effort of breeders in this period was to decrease plant height and days to heading. The other traits had small changes and showed no specific trends. In general the results of this study showed continous improvement of grain yield in this period. GENETIC IMPROVEMENT of grain yield in evaluated cultivars closely correlated with harvest index. Therefore, most variation in grain yield of OATS was due to variation in harvest index. Although much of the improvement in grain yield described here could be attributed to the increased harvest index, the scope for further improvement in this character may be limited. Further yield improvement of OATS might be achieved by combining high biological yield with high harvest index.

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APA: Copy

MORADI, MOHAMMAD, REZAEI, ABD ALMAJID, & ARZANI, A.. (2008). GENETIC IMPROVEMENT IN GRAIN YIELD AND RELATED TRAITS OF OAT CULTIVARS RELEASED IN CANADA DURING 1921–1997. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 11(42 (A)), 105-112. SID. https://sid.ir/paper/14991/en

Vancouver: Copy

MORADI MOHAMMAD, REZAEI ABD ALMAJID, ARZANI A.. GENETIC IMPROVEMENT IN GRAIN YIELD AND RELATED TRAITS OF OAT CULTIVARS RELEASED IN CANADA DURING 1921–1997. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2008;11(42 (A)):105-112. Available from: https://sid.ir/paper/14991/en

IEEE: Copy

MOHAMMAD MORADI, ABD ALMAJID REZAEI, and A. ARZANI, “GENETIC IMPROVEMENT IN GRAIN YIELD AND RELATED TRAITS OF OAT CULTIVARS RELEASED IN CANADA DURING 1921–1997,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 11, no. 42 (A), pp. 105–112, 2008, [Online]. Available: https://sid.ir/paper/14991/en

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