AN EVALUATION OF MAIZE INBRED LINES FOR DROUGHT TOLERANCE BASED ON RESISTANCE INDICES AND BIPLOT METHOD

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SAFARI SAEID; DEHGHANI HAMID; CHOUKAN R.

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Journal: IRANIAN JOURNAL OF AGRICULTURAL SCIENCES (JOURNAL OF AGRICULTURE) Year:2007 | Volume:38-1 | Issue:2 (AGRONOMY AND CROP BIOTECHNOLOGY) Page(s): 215-228

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Title

AN EVALUATION OF MAIZE INBRED LINES FOR DROUGHT TOLERANCE BASED ON RESISTANCE INDICES AND BIPLOT METHOD

Author(s)

SAFARI SAEID | DEHGHANI HAMID | CHOUKAN R. | Issue Writer Certificate

Keywords

CORNQ2

IRRIGATION DEFICITQ2

RESISTANCE INDEXQ2

TOLERANCEQ2

BIPLOTQ2

DROUGHTQ2

Abstract

To determine the most desirable index for DROUGHT TOLERANCE and for a detection of tolerant genotypes under restricted irrigation, among 25 inbred lines, an experiment was conducted in field conditions, using a randomized complete block design of three replications under three irrigation regimes of: fun irrigation and restricted irrigation (during vegetative and reproductive growth stages), in 2003. Based on the genotypes, performance in the two irrigation regimes (i.e. complete and restricted irrigation), different indices including mean productivity (MP), geometric mean productivity (GMP), stress susceptibility index (SSI), stress TOLERANCE (TOL) and stress TOLERANCE index (STI), were evaluated. Correlation coefficients between these indices and between yields indicated that MP, GMP and STI indices were the desirable ones and based on these, the most tolerant genotypes were pointed out to 25, 5, 19, 8, 12, 14, 3 and 1. In restricted irrigation in reproductive stage GMP and STI indices were the most desirable ones based upon which the most suitable genotypes were found as: 25, 5, 8, and 9. Using BIPLOT method for a determination of tolerant genotypes it was shown that in restricted irrigation in vegetative stage the 8 inbred lines of 25,5,19,8, 12, 14,3 and I, and in restricted irrigation in reproductive stage five inbred lines of25, 5, 8, 9 and 6 were located in the part of high yield potential along with low sensitivity to DROUGHT. Therefore, it is shown that selection for DROUGHT TOLERANCE among inbred lines is possible. According to these results, one can select lines with high production potential and low sensitivity to DROUGHT and to employ them for production of tolerant hybrids.

Cites

STUDY OF DROUGHT TOLERANCE INDICES IN MAIZE INBRED LINES UNDER LIMITED IRRIGATION AND NORMAL CONDITIONS

References

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APA: Copy

SAFARI, SAEID, DEHGHANI, HAMID, & CHOUKAN, R.. (2007). AN EVALUATION OF MAIZE INBRED LINES FOR DROUGHT TOLERANCE BASED ON RESISTANCE INDICES AND BIPLOT METHOD. IRANIAN JOURNAL OF AGRICULTURAL SCIENCES (JOURNAL OF AGRICULTURE), 38-1(2 (AGRONOMY AND CROP BIOTECHNOLOGY)), 215-228. SID. https://sid.ir/paper/8460/en

Vancouver: Copy

SAFARI SAEID, DEHGHANI HAMID, CHOUKAN R.. AN EVALUATION OF MAIZE INBRED LINES FOR DROUGHT TOLERANCE BASED ON RESISTANCE INDICES AND BIPLOT METHOD. IRANIAN JOURNAL OF AGRICULTURAL SCIENCES (JOURNAL OF AGRICULTURE)[Internet]. 2007;38-1(2 (AGRONOMY AND CROP BIOTECHNOLOGY)):215-228. Available from: https://sid.ir/paper/8460/en

IEEE: Copy

SAEID SAFARI, HAMID DEHGHANI, and R. CHOUKAN, “AN EVALUATION OF MAIZE INBRED LINES FOR DROUGHT TOLERANCE BASED ON RESISTANCE INDICES AND BIPLOT METHOD,” IRANIAN JOURNAL OF AGRICULTURAL SCIENCES (JOURNAL OF AGRICULTURE), vol. 38-1, no. 2 (AGRONOMY AND CROP BIOTECHNOLOGY), pp. 215–228, 2007, [Online]. Available: https://sid.ir/paper/8460/en

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