Effect of Water Stress on Seed Germination and Seedling Growth of Rice
(Oryza sativa L.) Genotypes
Z. Tahmasebi Sarvestani,
An experiment was conducted to compare fifteen lowland
rice (Oryza sativa L.) genotypes for drought tolerance based on some
physiological parameters in germination stage. Five levels of water stress (0,
-3.0, -5.0, -7.5 and B10 bars) treatments were given with polyethylene glycol
(PEG 6000). The water solutions were replaced with fresh solutions regularly.
Seed germination percentage and seedling growth decreased with increasing water
stress in all the genotypes. Among the genotypes, Tarom, Khazar, Fajr and Nemat
recorded better germination and seedling growth in terms of radicle and plumule
length under stress conditions than other genotypes.
Cited References Fulltext