yeild componants

Question 1

grain yield is calculated by

Answer 1

plants/unit area x ears or tillers/plant x spikelets/ear x grains/spikelet x weight/ grain

Question 2

harvest index is

Answer 2

grain yeild/total above ground yield

Question 3

differnce between absolute GR and relative GR

Answer 3

absalute growth rate is total wight gain over time relative gr is weight gain as a percentage of the total weight over time.

Question 4

site filling ratio

Answer 4

reflects proportion of tiller buds formed per day