An Evaluation on The Effects of Cold Stress in Wheat
2006
Arshad, Yousef | Abedi-e-Asl, Gholam Reza | Abolfathi, Behrooz | Alizadeh, Ali
In order to evaluat cold tolerance in wheat accessions of National Plant Gene Bank of IRAN, 4096 wheat accessions were evaluated under normal condition (in Agricultural Research Station of SPII, Karaj) and stressed condition (in Agricultural Research Station, Ardebil) during 1988 to 2004 morphological agronomical and phenologic characteristics including : growth type, days to heading, days to flowering, days to maturity, days from heading to maturity, days from flowering to maturity, number of flowers/spikelet, length of spike, plant height, tiller number, number of spikelets/spike, number of seeds/spike, weight of hundred seeds, weight of seeds on 5 spikes, spike density, awnletted of spike, glume colour, glume haimess, sprouting tendency and number of nodes were evaluated according to IBPGR wheat descriptors. The tolerance to cold stress was scored between 1 (very susceptible) and 9 (tolerant) in accessions under study. out of 4096 accessions 240 samples were tolerant, 1909 samples moderate tolerant, 1401 samples moderate susceptible, 428 samples susceptible and 66 samples were very susceptible.
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