A STUDY OF SEED DORMANCY, PERIOD OF AFTER-RIPENING, AND PRE-HARVEST SPROUTING RESISTANCE IN BARLEY (HORDEUM VULGARE L.) GENOTYPES

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DASTARAN MAMAGHANI F.; TAVAKKOL AFSHARI R.

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Journal: Iranian Journal of Field Crop Science Year:2009 | Volume:40 | Issue:1 Page(s): 77-88

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Title

A STUDY OF SEED DORMANCY, PERIOD OF AFTER-RIPENING, AND PRE-HARVEST SPROUTING RESISTANCE IN BARLEY (HORDEUM VULGARE L.) GENOTYPES

Author(s)

DASTARAN MAMAGHANI F. | TAVAKKOL AFSHARI R. | Issue Writer Certificate

Keywords

SEED DORMANCYQ2

PERIOD OF AFTER RIPENINGQ2

BARELYQ2

PRE-HARVEST SPOUTINGQ3

Abstract

The aim in this study was to evaluate SEED DORMANCY, period of after-ripening and pre-harvest sprouting resistance in barley genotypes. Fifty seven barley genotypes from Wageningen seed germplasm and two Iranian cultivars as control (Gorgan and Valfagr) were arranged in a randomized complete block design of two replications and planted at the Research Farm of Collage of Agriculture, University of Tehran in 2005. Date of heading and growing stage of ZGS92 were recorded during the growing season. As for ZGS92, 50 heads were collected, and following hand threshing of seeds several related measurements were conducted. First, percentage of seed germination under dark conditions and at 20oC (three replications) was evaluated. Among the 57 genotypes, 36 had a low percentage of germination (dormant) and the rest (21 genotypes) were non-dormant. The control cultivars also showed a high level of SEED DORMANCY and a low percentage of germination. To evaluate the length of dormancy in seeds, tests of after-ripening were conducted with dormant genotypes and with control cultivars over five weeks (3 replications). The results indicated that most of the genotypes had a high germination percentage during the first week showing they did not have deep dormancy. A number of genotypes and control cultivars last their dormancy after a lapse of five weeks. Sprouting resistance was assessed through Clark (sprouting score) and Hucl (sprouting index) methods. Dormant genotypes exhibited high resistance to pre-harvest sprouting.

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APA: Copy

DASTARAN MAMAGHANI, F., & TAVAKKOL AFSHARI, R.. (2009). A STUDY OF SEED DORMANCY, PERIOD OF AFTER-RIPENING, AND PRE-HARVEST SPROUTING RESISTANCE IN BARLEY (HORDEUM VULGARE L.) GENOTYPES. IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 40(1), 77-88. SID. https://sid.ir/paper/153488/en

Vancouver: Copy

DASTARAN MAMAGHANI F., TAVAKKOL AFSHARI R.. A STUDY OF SEED DORMANCY, PERIOD OF AFTER-RIPENING, AND PRE-HARVEST SPROUTING RESISTANCE IN BARLEY (HORDEUM VULGARE L.) GENOTYPES. IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2009;40(1):77-88. Available from: https://sid.ir/paper/153488/en

IEEE: Copy

F. DASTARAN MAMAGHANI, and R. TAVAKKOL AFSHARI, “A STUDY OF SEED DORMANCY, PERIOD OF AFTER-RIPENING, AND PRE-HARVEST SPROUTING RESISTANCE IN BARLEY (HORDEUM VULGARE L.) GENOTYPES,” IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 40, no. 1, pp. 77–88, 2009, [Online]. Available: https://sid.ir/paper/153488/en

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