Brown rust of wheat : _______________;
Late flight of potato :______________ ;
Loose smut of wheat : ______________ ;
Early flight of potato : _____________.
Which among the following is not a characteristics of umbel inflorescence ?
(i) It is a modified spike
(ii) The peduncle is condensed into a point.
(iii) The flowers are pedicellate and arrows from a common point of the peduncle.
(iv) All the flowers maybe of one type or two types.
(v) A single whorl of involucre lies at the base.