Record after emergence is complete and give the approximate numbers of plants per metre row for the extreme values used. EARLY VIGOUR (1-9) 1 = very weak 9 = very vigorous This should be recorded soon after full emergence. Record also the weediness and predominant weeds present at this time. GRAZING DAMAGE (1-9) 1 = all plants severely damaged 9 = no plants damaged Indicate the cause of damage and advise the Technical Manager by e-mail what action has been taken to minimise further damage. FLOWERING (1-9) 1 = very late 9 = very early One record is normally sufficient. Please also estimate the date of full flowering for the earliest control variety. LODGING (1-9) 1 = completely lodged 9 = no lodging The aim of this score is to describe the canopy structure at harvest. Please note that because of the nature of lodging in rape plots, a score of 5 can imply either half the plot area completely flat or the whole plot leaning at 45 degrees. PLANT HEIGHT (CM) Record average plot height at the end of flowering before leaning or lodging takes place. If lodging has occurred, choose a representative area of the plot, lift a number of plants against the measuring pole and record an average height. MATURITY (1-9) 1 = very late 9 = very early Maturity can only be judged by opening a number of pods along the length of the plot to assess seed colour. Pod colour does not give a reliable guide. Avoid unrepresentative areas of the plot when making assessments, for example, localised disease infections. YIELD (KG) and DRY MATTER% Obligatory from yield plots. Plot dimensions Plot length The plot length harvested in metres
Record after emergence is complete and give the approximate numbers of plants per metre row for the extreme values used. EARLY VIGOUR (1-9) 1 = very weak 9 = very vigorous This should be recorded soon after full emergence. Record also the weediness and predominant weeds present at this time. GRAZING DAMAGE (1-9) 1 = all plants severely damaged 9 = no plants damaged Indicate the cause of damage and advise the Technical Manager by e-mail what action has been taken to minimise further damage. FLOWERING (1-9) 1 = very late 9 = very early One record is normally sufficient. Please also estimate the date of full flowering for the earliest control variety. LODGING (1-9) 1 = completely lodged 9 = no lodging The aim of this score is to describe the canopy structure at harvest. Please note that because of the nature of lodging in rape plots, a score of 5 can imply either half the plot area completely flat or the whole plot leaning at 45 degrees. PLANT HEIGHT (CM) Record average plot height at the end of flowering before leaning or lodging takes place. If lodging has occurred, choose a representative area of the plot, lift a number of plants against the measuring pole and record an average height. MATURITY (1-9) 1 = very late 9 = very early Maturity can only be judged by opening a number of pods along the length of the plot to assess seed colour. Pod colour does not give a reliable guide. Avoid unrepresentative areas of the plot when making assessments, for example, localised disease infections. YIELD (KG) and DRY MATTER% Obligatory from yield plots. Plot dimensions Plot length The plot length harvested in metres
Protocol-SR12-16-HGCA-spring-oilseed-rape-trials.docx