A plant is deprived of a particular mineral element. It develops the symptoms like.
(a) interveinal chlorosis and necrosis of older leaves
(b) the leaves appear twisted which die subsequently
(c) flower formation may be prevented or flowers may abscise prematurely
The element is __________
Select the most appropriate answer from the choices given below:
(a) Cytokinins-keeps flowers fresh for longer period of time
(b) Zeatin-used in brewing industry
(c) Ethylene-accelerates sprouting in potato tubers
(d) ABA- comes under the group of terpenes
Observe the relationship between the words and fill up the blanks with word having similar relationship.
(i) Haematoxylin : Haematoxylon campechianum ; Cork : ..............
(ii) Phellogen : Cork cambium ; .............. : cork
(iii) Ovule-funicle : Seed stalk ; Ovule-nucellus : ................
(iv) Brachysclereids : ........................... ; Osteosclereids : Prop cells