Paper Information

Journal:   JOURNAL OF AGRICULTURAL SCIENCES   2006 , Volume 12 , Number 1 (SUPPLEMENT); Page(s) 143 To 153.
 
Paper: 

SELECTION FOR DROUGHT RESISTANCE IN LINES OF BARLEY IN KERMANSHAH REGION (HORDEUM VULGARE)

 
 
Author(s):  HESADI P.*
 
* 
 
Abstract: 

To identify drought resistant lines and screening quantitative indices of drought resistance, sixteen lines of barley along with two evidence (Sararood one and Mahalli) were tested in a randomized complete block design with two replications under two irrigated and rainfed conditions in rainfed research station sararood of kermanshah. Based on the potentail (Yp) and stress (Ys) yield, quantitative criteria of drought resistance as: mean productivity (MP), tolerance index (TOL) geometeric mean productivity (GMP), harmonic mean (HM), stress susceptibility index (SSI) and stress tolerance index (STI) were calculated. The results of mean comparision showed that the highest potential and stress yield were related to the line 14. The highest harmonic mean, geometric mean productivity, mean productivity and stress tolerance index were related to the line 14 and the highest stress susceptibility index and tolerance index were related to the line 17. The results of correlation analysis between indices, mean potential and stress yield indicated that the most suitable criteria for screening the lines under two irrigated and rainfed conditions were foure indices geometric mean productivity (GMP), mean productivity (MP), harmonic mean (HM) and stress tolerance index (STI) Based on these three criteria and high yield potential and stress yield, the best drought resistant lines were identified (14 and 11).

 
Keyword(s): MEAN PRODUCTIVITY (MP), TOLERANCE INDEX TOL) GEOMETERIC MEAN PRODUCTIVITY GMP), HARMONIC MEAN (HM), STRESS SUSCEPTIBILITY INDEX (SSI) AND STRESS TOLERANCE INDEX (STI)
 
References: 
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