Who confirmed the release of a volatile substance from ripening oranges that hastened the ripening of stored unripened bananas? 

Identify the correct statements among the following. I. Kurosawa found symptoms of "Bakanae" disease on rice seedlings when they were treated with sterile filtrates of Gibberella fujikuroi. II. The discovery of each of the five major groups of PGR has been accidental. III. Cousins confirmed the release of a volatile substance from ripened oranges that hastened the ripening of stored unripened bananas. IV. F.W Went isolated auxins form coleoptile tips of Avena grass

Who discovered that ripe oranges emitted a volatile substance?

Who discovered that ripe organes emitted a volatile substance?

Which one of the following hastens the ripening of fruits?

The ripening of fruits can be hastened by treatment with