Abstract : reproductive stage water stress water stress subject category: miscellaneous see more details leads to spikelet sterility sterility subject category: miscellaneous see more details in wheat wheat subject category: commodities and products see more details.
Grain number per unit area is an effective component of grain yield in bread wheat water-stress induced apical sterility (tip sterility) reduces the number of grains and, consequently, the grain yield in semi-arid regions with a shortage of available water during the pre-anthesis period.
Importance of pre-anthesis anther sink strength for maintenance of grain number during reproductive stage water stress in wheat ji x(1), shiran b, wan j, lewis dc, jenkins cl, condon ag, richards ra, dolferus r author information: (1)csiro plant industry, canberra, australian capital territory 2601, australia. Drought at pre-anthesis stages can influence barley growth and results in yield losses therefore, it is important to understand how drought at pre-anthesis can affect different traits associated with yield reduction in barley. Importance of pollen fertility in grain number control compared with the field, our controlled water stress assay is quite gentle and does not affect survival of the vegetative parts of the wheat plant but even a short spike of water stress at the critically sensitive ym stage is enough to induce large amounts of sterility.
Although individual grain weight is an important source of variation forgrain yield, there is still poor understanding of the causes determining finalgrain weight almost all studies conducted for understanding thedeterminants of grain weight have been focused on the post-anthesis periodhowever, there is important evidence that pre-anthesis conditions couldalso modify final grain weight.
The importance of the anthesis-silking interval in breeding for drought tolerance in tropical maize author links open overlay panel j bolaños go edmeades show more.
Due to these losses, values for pre-anthesis assimilates and nitrogen contribution to seed were greater than 100 for most of the genotypes in 1999 results indicated that translocation of pre-anthesis stored assimilates is crucial for seed growth in safflower under mediterranean climatic conditions.