EVALUATION OF YIELD STABILITY OF RICE GENOTYPES IN DIFFERENT LOCATIONS OF GUILAN PROVINCE

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SOROUSH H.R.; RABIEI B.

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Journal: JOURNAL OF AGRICULTURAL KNOWLEDGE Year:2009 | Volume:18 | Issue:4 Page(s): 106-114

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Information Journal Paper

Title

EVALUATION OF YIELD STABILITY OF RICE GENOTYPES IN DIFFERENT LOCATIONS OF GUILAN PROVINCE

Author(s)

SOROUSH H.R. | RABIEI B. | Issue Writer Certificate

Keywords

BLAST RESISTANCEQ2

GENOTYPE × ENVIRONMENT INTERACTIONQ2

GRAIN AROMAQ2

RICEQ3

STABILITY PARAMETERSQ3

Abstract

In order to determine the genotype × enviromnent (GE) interaction and yield stability, eight treatments including seven promising RICE lines and one check (Khazar) were evaluated during 2000-2003. A randomized complete block design was used with four replications in three locations (Rasht. Hashtpar and Rudsar) of Guilan province. Separate analysis of variance for grain yield showed highly significant differences among the genotypes. Combined analysis of variance showed significant differences among genotypes and locations. The interactions of cultivar × location and cultivar × year were not significant. The interactions of year × location and year × location × cultivar were significant, that proved the existence of GE interaction. The stability was evaluated through nine different methods including: Wricke's equivalence (Wi2), stability variance (si2), coefficient of regression of mean yield on environmental index (bi), variance of deviation from regression line (S2di),variance (S2i) and coefficient of variability (CVi), of environments within location variance (msy/p), within location coefficient of variance (CVy/p) and Ranking (R-, S.D.R). The results showed that Lines No.829, 830, 831 and 833 were stable. Line No.831 was most stable with less S2di, Wi2, si2, R-, S.D.R and abi near to unity. line No. 830 also was the most stable one with less S2i, CVi, msy/p and CVy/p. In addition Lines No. 830 and 831 yielded 5 - 5.5 t ha-1, significantly more than Khazar (improved check).The above genotypes were aromatic RICE having high resistance to blast. Consequently, these two lines were selected to release as new stable varieties for Guilan province because of having other desired morphological and grain quality traits.

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APA: Copy

SOROUSH, H.R., & RABIEI, B.. (2009). EVALUATION OF YIELD STABILITY OF RICE GENOTYPES IN DIFFERENT LOCATIONS OF GUILAN PROVINCE. JOURNAL OF AGRICULTURAL KNOWLEDGE, 18(4), 106-114. SID. https://sid.ir/paper/29054/en

Vancouver: Copy

SOROUSH H.R., RABIEI B.. EVALUATION OF YIELD STABILITY OF RICE GENOTYPES IN DIFFERENT LOCATIONS OF GUILAN PROVINCE. JOURNAL OF AGRICULTURAL KNOWLEDGE[Internet]. 2009;18(4):106-114. Available from: https://sid.ir/paper/29054/en

IEEE: Copy

H.R. SOROUSH, and B. RABIEI, “EVALUATION OF YIELD STABILITY OF RICE GENOTYPES IN DIFFERENT LOCATIONS OF GUILAN PROVINCE,” JOURNAL OF AGRICULTURAL KNOWLEDGE, vol. 18, no. 4, pp. 106–114, 2009, [Online]. Available: https://sid.ir/paper/29054/en

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