A Review of on the Spikelet Number in Rice

Authors(7) :-Ali Sattari, ZA-Jahantigh Haghighi, HO-Nohtani, MO-Noorozi, Ab-Nokhbeh Zaeim, K-Moradi, Na-Mirzaie Amirabad

Grain yield of rice (Oryza sativa L.) has four components: panicle number, total spikelet number per panicle (TSN), grain weight and spikelet fertility. There is wide variation in TSN among cultivated rice varieties and it is one of the targets of breeding programs to improve rice yield. Many hypotheses have been proposed to explain ecophysiological process that determines spikelet number per unit area. Nitrogen is one of the most yield-limiting nutrients in crop production, and its proper management is essential for improving grain yield. Grain number is linearly correlated with total plant N content. Nitrogen fertilizer might affect CKs levels to increase rice flower numbers. To identify the loci controlling panicle architecture, QTLs for panicle traits such as number of primary or secondary branches and spikelet number per primary or secondary branch have been mapped and studied. QTLs for TSN have been identified using various segregating populations, including F2 populations, recombinant inbred lines (RILs), and doubled haploid (DH) lines.

Authors and Affiliations

Ali Sattari
Phd. student of Department of Agronomy and Plant Breeding, Faculty of Agriculture, Zabol University
ZA-Jahantigh Haghighi
M.Sc. Department of Agronomy and Plant Breeding, Faculty of Agriculture, Zabol University,Iran
M.Sc. Department of Agronomy and Plant Breeding, Faculty of Agriculture, Zabol University,Iran
Tanin Keshtzar Sabz Agricultural Research, Service and Production Cooperative Company, Iran
Ab-Nokhbeh Zaeim
M.Sc. Department of Agronomy and Agroecology, Faculty of Agriculture, Ferdowsi University of Mashhad,Iran
Phd. student of Department of Agronomy and Plant Physiology, Faculty of Agriculture, Zabol University, Iran
Na-Mirzaie Amirabad
M.Sc. Department of Agronomy and Horticultural Plant Breeding, Faculty of Agriculture, Zabol University, Iran

Oryza sativa L., total spikelet number (TSN), QTLs, recombinant inbred lines (RILs)

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Publication Details

Published in : Volume 1 | Issue 5 | November-December 2015
Date of Publication : 2015-12-31
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 222-227
Manuscript Number : IJSRST151545
Publisher : Technoscience Academy

Print ISSN : 2395-6011, Online ISSN : 2395-602X

Cite This Article :

Ali Sattari, ZA-Jahantigh Haghighi, HO-Nohtani, MO-Noorozi, Ab-Nokhbeh Zaeim, K-Moradi, Na-Mirzaie Amirabad, " A Review of on the Spikelet Number in Rice", International Journal of Scientific Research in Science and Technology(IJSRST), Print ISSN : 2395-6011, Online ISSN : 2395-602X, Volume 1, Issue 5, pp.222-227, November-December-2015.
Journal URL : http://ijsrst.com/IJSRST151545

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