Development of pre-breeding technology for root system study and selection of Kihara Afghan wheat landraces (KAWLR) to enhance wheat breeding in the rain-fed region.

ABSTRACT: To enhance a root trait-based selection program for rain-fed wheat breeding in Afghanistan, we simulated an efficient pre-breeding drought system. Plants were grown in 1 m pipes as control or 2 m pipes to simulate drought conditions soaking ground water up by capillary action supplemented by two different life supporting irrigations from top of the pipes (T1 and T2 droughts). T1 was used for studying genetic diversity in 360 Kihara Afghan wheat landraces (KAWLR). Both drought treatments were used to evaluate root traits in 30 selected genotypes. KAWLR showed large root length variations under T1, categorized as long root (>200 cm; LR), medium root (100-150 cm; MR) and short root (20-100 cm; SR) systems. LR genotypes were more drought resistant in terms of greater plant survivability under

SUBMITTER: Haque E 

PROVIDER: S-EPMC5282751 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature