STUDY ON GENERAL AND SPECIFIC COMBINING ABILITY IN PARENTAL LINES OF HYBRID RICE USING LINE × TESTER ANALYSIS

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ALAH GHOLIPOUR M.; HOSSEINI M.; RAHIM SOROUSH H.; SAYADI M.

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Journal: JOURNAL OF AGRICULTURAL KNOWLEDGE Year:2005 | Volume:15 | Issue:3 Page(s): 77-88

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Title

STUDY ON GENERAL AND SPECIFIC COMBINING ABILITY IN PARENTAL LINES OF HYBRID RICE USING LINE × TESTER ANALYSIS

Author(s)

ALAH GHOLIPOUR M. | HOSSEINI M. | RAHIM SOROUSH H. | SAYADI M. | Issue Writer Certificate

Keywords

GENERAL AND SPECIFIC COMBINING ABILITYQ3

GRAIN YIELDQ3

HYBRID RICEQ2

LINE X TESTERQ3

Abstract

To determine the GENERAL AND SPECIFIC COMBINING ABILITY of the parental lines, four restorers and two male sterility lines were selected as lines and testers, respectively. Six parental lines were crossed in a LINE X TESTER crossing system in 2001. Eight F1 hybrids and their six parents were evaluated in a Randomized Complete Blocks Design (RCBD) with three replications for yield and yield components. After analysis of variance, the additive and dominant variances were calculated. Generally, parents with good combining ability produce good lines in the later generations. Therefore, the basic information about the general combining ability (GCA) and specific combining ability (SCA) is valuable for breeding cultivars. The effect of GCA was significant for the number of grains per panicle, plant height and days to 50% flowering in line No.1 (IR60819R), which indicated the importance of the additive gene effects for these traits. In line No.2 (IR68749R), the effect of GCA was significant for GRAIN YIELD, 100-grain weight, plant height, days to 50% flowering and grain weight. The general combining ability of two testers was not significant for all characters. The effect of SCA was positive and significant for GRAIN YIELD in hybrids of IR68281A/IR60966R, IR58025A/ IR60819R and IR68281A /IR42686R. These hybrids had the highest GRAIN YIELD with 8.030, 7.347 and 6.715 t/ha respectively. Therefore, these combinations are recommendable for hybrid seed production after further tests in several environments.

Cites

STUDY GENERAL AND SPECIFIC COMBINING ABILITY OF TRAITS IN PARENTAL LINES OF HYBRID RICE

References

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APA: Copy

ALAH GHOLIPOUR, M., HOSSEINI, M., RAHIM SOROUSH, H., & SAYADI, M.. (2005). STUDY ON GENERAL AND SPECIFIC COMBINING ABILITY IN PARENTAL LINES OF HYBRID RICE USING LINE × TESTER ANALYSIS. JOURNAL OF AGRICULTURAL KNOWLEDGE, 15(3), 77-88. SID. https://sid.ir/paper/28726/en

Vancouver: Copy

ALAH GHOLIPOUR M., HOSSEINI M., RAHIM SOROUSH H., SAYADI M.. STUDY ON GENERAL AND SPECIFIC COMBINING ABILITY IN PARENTAL LINES OF HYBRID RICE USING LINE × TESTER ANALYSIS. JOURNAL OF AGRICULTURAL KNOWLEDGE[Internet]. 2005;15(3):77-88. Available from: https://sid.ir/paper/28726/en

IEEE: Copy

M. ALAH GHOLIPOUR, M. HOSSEINI, H. RAHIM SOROUSH, and M. SAYADI, “STUDY ON GENERAL AND SPECIFIC COMBINING ABILITY IN PARENTAL LINES OF HYBRID RICE USING LINE × TESTER ANALYSIS,” JOURNAL OF AGRICULTURAL KNOWLEDGE, vol. 15, no. 3, pp. 77–88, 2005, [Online]. Available: https://sid.ir/paper/28726/en

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