Wheat seed weight and quality differ temporally in sensitivity to warm or cool conditions during seed development and maturation.

ABSTRACT:

Background and aims

Short periods of extreme temperature may affect wheat (Triticum aestivum) seed weight, but also quality. Temporal sensitivity to extreme temperature during seed development and maturation was investigated.

Methods

Plants of 'Tybalt' grown at ambient temperature were moved to growth cabinets at 29/20°C or 34/20°C (2010), or 15/10°C or 34/20°C (2011), for successive 7-d periods from 7 DAA (days after anthesis) onwards, and also 7-65 DAA in 2011. Seed samples were harvested serially and moisture content, weight, ability to germinate, subsequent longevity in air-dry storage and bread-making quality were determined.

Key results

High temperature (34/20°C) reduced final seed weight, with greatest temporal sensitivity at 7-14 or 14-21 DAA. Several aspects

SUBMITTER: Nasehzadeh M 

PROVIDER: S-EPMC5591415 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature