Questions

Answers

1

Botanical name of Onion

Allium cepa

2

Family of Onion

Alliace

3

Origin of Onion

Central Asia

4

Chromosome number of Onion

2n=16

5

Edible part of Onion

Bulb

6

Onion is rich in

Vitamin-B

7

Red color in Onion is due to

Anthocyanin

8

Pungency of Onion is due to

Allyl-propyl disulphide

9

Pink revolution is related to

Onion, Prawn

10

Bolting in Onion is due to

Low temperature

Questions

Answers

11

Purple blotch of Onion is due to

Alternaria porii

12

Seed rate requirement of Onion for nursery

10-12 kg/ha

13

Onion is highly cross pollinated due to

Protandry

14

The color of outer skin of Onion is due to

Quercetin

15

Phenolic content present in Onion having antifungal property

Catechol

16

Optimum temperature requirement for Onion bulb development

20-25 °C

17

Directorate of Onion & Garlic Research located in

Pune

18

During storage, sprouting / germination of Onion can be stopped by using

MH @2500 ppm

19

Important insect pest in Onion is

Thrips

20

Thrips infestation can be controlled by spraying

Acephate (1ml/l)

21

Hybrid varieties of Onion

Arka Lalima, 

Arka Pitambar

22

Small size Onion varieties

Arka Bindu,

Bangalore Rose

23

Tri-parental derived synthetic variety of Onion

Arka Been

24

Anti-oxidant rich variety of Onion is

Pusa Riddh

25

White color Onion varieties

Bhima Shubra,

Bhima Shweta,

Arka Yojith,

Phule Safed

26

Seed rate requirement of Onion grown under nursery condition

5-7 kg seeds/ha

27

Rabi season varieties of Onion

Pusa Red,

Pusa Ratnar,

Pusa Madhavi,

Nasik Red,

Udaipur 101,

Arka Bindu

28

Kharif season varieties of Onion

Arka Kalyan,

N-53,

Agrifound Red

Onion crop insect pest and diseases are posted in Entomology and Pathology Section