title: Investigation of seed vigor and germination of canola cultivars under less irrigation in padding stage and after it.
abstract: The laboratory experiment was a factorial based on a Completely Randomized Design with four replications during 2005. Factors included two irrigation levels (normal irrigation (irrigation after 60 mm evaporation from class a pan) and less irrigation in padding stage and after it) and six winter cultivars (Licord, Okapi, Orient, SLMO64, Zarfam and Opera). The seeds used in this experiment produced under less irrigation (moderate drought stress) and they were three months in storage. The seed vigor was tested in laboratory experiment by three vigor tests, including Standard Germination test, cold test, Accelerated Ageing Test. Result showed that the accelerated aging test had significant differences on all of character in this study. Mean Comparing, showed canola cultivars had significant effect on Root/ Shoot ratio, abnormal seedling, hard seed, seedling fresh weight, MTG and FGP. Less irrigation levels had significant effect on total and shoot length, ratio root/shoot length and MTG.
authors.affiliation: Department of Agronomy, Abouraihan Campus, University of Tehran, Iran.
authors.forename: S Ahmad Sadat
authors.initials: SA
authors.lastname: Noori
authors.forename: Hamideh
authors.initials: H
authors.lastname: Khalaj
authors.forename: A Hosein Shirani
authors.initials: AH
authors.lastname: Rad
authors.forename: Iraj
authors.initials: I
authors.lastname: Alahdadi
authors.forename: Gh Abbas
authors.initials: GA
authors.lastname: Akbari
authors.forename: M Reza Labafi H
authors.initials: MR
authors.lastname: Abadi
mesh_terms: D000383:Agriculture / Q000379:methods*; D029688:Brassica napus / Q000378:metabolism*; D003080:Cold Temperature; D018521:Plant Physiological Phenomena; D018517:Plant Roots; D018520:Plant Shoots; D036226:Seedlings / Q000254:growth & development*; D012639:Seeds; D013997:Time Factors; D014867:Water / Q000737:chemistry
chemical_list: D014867:Water