31.
White bud-a physiological disorder in sweet corn is caused by the deficiency of which mineral nutrient?

32.
The edible portion of cabbage is

33.
The breakdown of vertical resistance due to the development of a new physiological race is

34.
Multi storyed cropping is practiced in

35.
Which of the following is a single seeded cucurbit?

36.
Oxalic acid in leafy vegetables reduce the bio-availability of

37.
Ultra dwarfing rootstock of apple is

38.
The concept of center of origin of crop plants was proposed by

39.
1st company to supply vegetable seeds in our country is

40.
The Ministry of Agriculture has announced the year . . . . . . . . as the "Year of Horticulture".