Agri Info

 Sunflower Oneliner - Agronomy Important Q & A For All Competitive Exam

1.    Origin of sunflower: Mexico

2.    Botanical name of sunflower: Helianthus annuus.

3.    Family of sunflower: Compositeace (Asteraceae)

4.    Chromosome number of sunflower: 2n=34

5.    Inflorescence of sunflower: capitulum

6.    Oil content in sunflower: 35-45%

7.    Highest PUFA containing crop is sunflower

8.    Sunflower is a day neutral crop.

9.    Storage moisture percentage of sunflower: 9-10%

10.    Seed multiplication ratio of sunflower: 1:50

11.    Seed rate of sunflower: 5-8 kg/ha

12.    Spacing of sunflower: 45 x 30 cm

13.    Origin of safflower: Ethiopia

14.    Botanical name of safflower: Carthamus tinctorious

15.    Family of safflower: Compositeae (Asteraceae)

16.    Chromosome number of safflower: 2n=20

17.    Fruit type of safflower: Achene

18.    Inflorescence of safflower: Capitulum

19.    Seed rate of safflower: 15-20 kg/ha

20.    Spacing of safflower: 30 x 20 cm

21.    Safflower oil is best for heart patients

22.    Safflower crop is known as fencing/ border crop.

23.    PUFA percentage in safflower: 78%

24.    Safflower contains 32-36% oil

25.    41% linolic acid in safflower.

25.    Seed multiplication ratio of safflower: 1:60

 Cotton Oneliner - Agronomy Important Q & A For All Competitive Exam

1.    Origin of cotton: India

2.    Botanical name of cotton: Gossypium spp.

3.    Family of cotton: Malvaceae

4.   Chromosome number:

• Desi cotton: 2n=26
•  American cotton: 2n=52

5.   Spacing of cotton:

•  Desi cotton: 60 x 15 cm
•  American: 60 x 30 cm
•  Hybrid: 120 x 45 cm
•  Bt cotton: 100 x 100 cm
•  Ultra narrow row: 19 x 19 cm

6.    Cotton is known as white gold.

7.    Cotton also known as back bone of textile industry.

8.    Cotton is a King of appraisal fiber.

9.    Cotton is a Deep rooted crop.

10.   Cotton is a C3, Self pollinated, day neutral.

11.    Epigeal germination in cotton.

12.    Cotton fiber length is measured by arealometer.

13.    Cotton is a Hardy crop most drought tolerant crop.

14.    Seed multiplication ratio: 1:50

15.    Bt- cotton is discovered by Japanese scientist Eshivata in 1901.

16.    In bt-cotton cry-1 gene responsible.

17.    Cry-1 gene also known as ammien gene.

18.    Cry-1 gene produced a protein against spotted bollwarm.

19.    Bt (Bacillus thurogensis) is a soil bacteria.

20.    Seed rate of cotton-

•    Desi cotton: 10-12 kg/ha
•    American: 15-20 kg/ha
•    Hybrid: 2-3 kg/ha.
•    Bt. Cotton: 1.5-2.0 kg/ha. 

21.  Temperature required in cotton:

• For germination: 16⁰C
• For vegetative growth: 21-27⁰C
• Cotton can tolerate temperature upto 43⁰C

Jute Oneliner - Agronomy Important Q & A For All Competitive Exam

•  Origin of jute: India
•  Botanical name of jute: Corchorus spp.
•  Family of jute: Tiliaceae
•  Chromosome number of jute: 2n=14
•  Other name of Corcorus capsularis: white jute, tita
•  Hardy plant, tolerant water logging.
•  Seed rate of Corcorus capsularis 6-8 kg/ha.
•  Seed rate of Corchorus olitoris; 4-6 kg/ha,  
•  Jute fiber is called as bast.
•  Jute is also known as golden fiber.
•  Jute fiber is obtained from secondary phloem of stem.
•  Retting of jute is a microbial process
• Retting is completed within 7-9 days compared to 18-21 days required under conventional whole plant retting.
• Slow moving water is best for retting. 
• Temperature for retting 34⁰C
• Seed multiplication ratio of jute:1:100

 Black Gram Oneliner - Agronomy Important Q & A For All Competitive Exam

1.          Origin of black gram: India(central Asia)

2.          Botanical name of black gram: Vigna mungo

3.          Family of black gram: leguminaceae

4.          Chromosome number of black gram: 2n=22

5.          Inflorescence of black gram: Auxiliary racemes

6.          Other name of black gram: Urd Bean.

7.          Germination type of black gram: Epigeal

8.          Test weight of black gram: 36-39g

9.          Black gram is a Self pollinated, C3, short day plant.

10.        Black gram is a Mainly tropical plant

11.        Fruit type of black gram: Pod

12.        Edible part of black gram: Seed

13.        Water requirement to blackgram: 250-300 mm

14.          Protein% in black gram: 24%

15.          Seed multiplication ratio of black gram: 1:40

16.          Seed rate of black gram: 20-25 kg/ha

17.          Optimum temperature required for black gram: 27-30C

 Pigeon Pea / Redgram /Arhar Oneliner - Agronomy Important Q & A For All Competitive Exam

1.            Origin of pigeon pea: Africa

2.          Botanical name of pigeon pea: Cajanus cajan

3.          Family of pigeon pea: leguminaceae / papilionaceae

4.          Chromosome number of pigeon pea: 2n=22

5.          Germination type of pigeon pea: Hypogeal.

6.          Protein in pigeon pea: 21-25%

7.          Inflorescence of pigeon pea: Axillary Raceme

8.          Other name of pigeon pea: Red gram, Congo pea, no eye pea, Arhar, tur.

9.          Deep rooted system in pigeon pea crop.

10.      Pigeon pea is an Often cross pollinated crop.

11.      Pigeon pea is a C3, short day plant

12.      1 gram of protein = 1 gram of carbohydrate.

13.      Stems are woody, branchy can go up >4m

14.      Pigeon pea is a Hardy crop, most drought tolerant crop.

15.      Harvesting index of pigeon pea, lowest among cereals 19%

16.      Storage moisture percentage of pigeon pea: 10-11%

17.      Test weight of pigeon pea: 72g

18.      Fruit type of pigeon pea: Pod

19.      Edible part of pigeon pea: Seed

20.      Water requirement of pigeon pea: 300-350 mm

21.      Cajanus cajan var. flavus (tur) is a –

• Short duration
• Pods are light colored with 3-4 seeds
•  Annuals, yellow flowers, fewer plain pods
• Plant hight 2-3 metre
• Early maturity (100-150 days)
• No red vines present.
•  Flowering in Dec. – Feb.
•  Pod maturity at different time.
•  Cultivated in Southern India

22.    Cajanus cajan var. bicolor (arhar) is a-

•  Long duration, flowers yellow with purple streak
•  Std petals bears red veins on dorsal side
•  Pods are dark colored with 5-7 seeds
•  Cultivated in northern India

23.      Flowering Sep. – Nov.

24.      Pod maturity at same time (synchronization)

25.      Plant height 5-6 metre.

26.      Late maturity (150-180 days)

27.      It is also found suitable for forage, as cover crop, shade and hedge.

28.      Temp. Required to pigeon pea at 

• Germination: 30-35C, 
• Vegetative growth: 20-25C, 
• Flowering and pod development: 14-18C, 
• At maturity: 35-40C