Agronomy

High Mg and Ca

Low N and Ca

High N and S

Moderate Mg and Ca

Serve, as valuable fodder plants

Grow better then cultivated plants

Needed to understand the origin of cu;cultivated plants

Carrying many useful genes which are lost in cultivated plants

Triploid

Diploid

Tetraploid

Haploid

Alarm pheromone

Sex pheromone

Aggregation pheromone

Trial marking pheromone

Lack of integrity in seed cells

Intrinsic Mechanism

Endogenous inhibitors

Al the above

Seasons

Soils

Crops

Regions

Triticum

Hirsutum

Gassypium

Hordeunt

Aggregation pheromone

Alarm pheromone

Sex pheromone

Trial marking pheromone

Humidity

High temperature

Low temperature

Cloudy day

Provide greater vigour

Produce better crop

Are more uniform

All the above