Discussion
The seed rate of Cynodon dactylon grass is:
Answer: C
The key gives 25 to 30 kg per hectare for the seed rate of Cynodon dactylon (Bermuda grass). I could not find a source with the figure, so this rests on the key.
5-10 kg is lower, and 35-40 kg is higher; ‘15-20 g’ is a very small amount per hectare and cannot be a seed rate for a lawn.
The figure is the quantity of seed needed to sow a hectare of lawn. Bermuda grass is also planted by stolons and sods, and the seed rate refers only to sowing by seed. The very small figure in the second option is in grams, not kilograms, which is why it cannot be a hectare rate.
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