Question:
In case of onions, which of the followings are desirable features?
(A) Dormancy
(B) Low total soluble solids
(C) High ratio of reducing to non reducing sugars
(D) Late bolting
Choose the correct answer from the options given below:
In case of onions, which of the followings are desirable features?
(A) Dormancy
(B) Low total soluble solids
(C) High ratio of reducing to non reducing sugars
(D) Late bolting
Choose the correct answer from the options given below:
(A) Dormancy
(B) Low total soluble solids
(C) High ratio of reducing to non reducing sugars
(D) Late bolting
Choose the correct answer from the options given below:
Show Hint
High-quality processing cultivars of onion should have high TSS, white flesh, and high pungency.
Avoid varieties that sprout easily or bolt prematurely under cool weather conditions.
Avoid varieties that sprout easily or bolt prematurely under cool weather conditions.
Updated On: Jul 29, 2026
- (A), (B) and (D) only.
- (A) and (D) only.
- (A), (C) and (D) only.
- (A), (B), (C) and (D).
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
Onions (Allium cepa) are a highly valued bulb crop with specific quality standards for storage and processing.
Breeders select for traits that maximize shelf life and processing quality.
Step 2: Detailed Explanation:
- (A) Dormancy: Long bulb dormancy is a highly desirable feature.
It prevents bulbs from sprouting during transit and storage, which would make them unmarketable. Thus, (A) is desirable.
- (B) Total Soluble Solids (TSS): A low TSS is undesirable.
Instead, high TSS (above 15% to 20%) is highly desirable, especially for processing and dehydration.
High TSS reduces the energy required for drying and is linked to better bulb storage and firmness. Thus, (B) is undesirable.
- (C) Reducing to non-reducing sugar ratio: A high ratio of reducing to non-reducing sugars is undesirable.
Reducing sugars react with amino acids during dehydration (Maillard reaction), causing an undesirable brown discoloration.
Non-reducing sugars, like sucrose, are preferred because they store better and maintain crop quality. Thus, (C) is undesirable.
- (D) Late bolting: Late or no bolting is a highly desirable trait.
Bolting (premature seed stalk development) is triggered by low temperatures.
It makes the bulb core tough and woody, reducing bulb size, dry matter, and storage potential. Thus, (D) is desirable.
Therefore, only features (A) and (D) are desirable.
Step 3: Final Answer:
The desirable features for onions are (A) Dormancy and (D) Late bolting.
Onions (Allium cepa) are a highly valued bulb crop with specific quality standards for storage and processing.
Breeders select for traits that maximize shelf life and processing quality.
Step 2: Detailed Explanation:
- (A) Dormancy: Long bulb dormancy is a highly desirable feature.
It prevents bulbs from sprouting during transit and storage, which would make them unmarketable. Thus, (A) is desirable.
- (B) Total Soluble Solids (TSS): A low TSS is undesirable.
Instead, high TSS (above 15% to 20%) is highly desirable, especially for processing and dehydration.
High TSS reduces the energy required for drying and is linked to better bulb storage and firmness. Thus, (B) is undesirable.
- (C) Reducing to non-reducing sugar ratio: A high ratio of reducing to non-reducing sugars is undesirable.
Reducing sugars react with amino acids during dehydration (Maillard reaction), causing an undesirable brown discoloration.
Non-reducing sugars, like sucrose, are preferred because they store better and maintain crop quality. Thus, (C) is undesirable.
- (D) Late bolting: Late or no bolting is a highly desirable trait.
Bolting (premature seed stalk development) is triggered by low temperatures.
It makes the bulb core tough and woody, reducing bulb size, dry matter, and storage potential. Thus, (D) is desirable.
Therefore, only features (A) and (D) are desirable.
Step 3: Final Answer:
The desirable features for onions are (A) Dormancy and (D) Late bolting.
Was this answer helpful?
0
0
Top ICAR AIEEA Horticulture Questions
- In banana:
Statement (A): Bunch feeding is a simple and low-cost method.
Statement (B): It is the direct way to supply nutrients to the bunch.
Statement (C): Only micronutrients can be given through this method.
Choose the correct answer from the options given below. - The softwood grafting
Statement (I): Is done with mature, procured scion on the emerging soft, coppery-red shoot of the rootstock, which is 60-70 days old.
Statement (II): Is used for raising desired varieties of mango, sapota, tamarind and cashew.
In light of the above statements, choose the most appropriate answer from the options given below. - Given below are two statements:
Statement (I): In garlic modified roots are economic part.
Statement (II): Characteristic odour in garlic is due to volatile organic sulfur-containing compounds that are rapidly produced upon tissue damage and diffuse into the air.
In light of the above statements, choose the most appropriate answer from the options given below. - Given below are two statements:
Statement (I): The flowers of ridge gourd start opening in the evening and remain open throughout the night.
Statement (II): Pollination of ridge gourd is done in the day time.
In light of the above statements, choose the most appropriate answer from the options given below. - Given below are two statements:
Statement (I): The first gynoecious based hybrid of bitter gourd is Pusa Hybrid-4 developed by ICAR-IARI, New Delhi.
Statement (II): The male:female ratio of the gynoecious based hybrids of bitter gourd is 25:1.
In light of the above statements, choose the most appropriate answer from the options given below.
View More Questions
Top ICAR AIEEA Vegetable and Fruit Science Questions
- Given below are two statements:
Statement (I): In garlic modified roots are economic part.
Statement (II): Characteristic odour in garlic is due to volatile organic sulfur-containing compounds that are rapidly produced upon tissue damage and diffuse into the air.
In light of the above statements, choose the most appropriate answer from the options given below. - Given below are two statements:
Statement (I): The flowers of ridge gourd start opening in the evening and remain open throughout the night.
Statement (II): Pollination of ridge gourd is done in the day time.
In light of the above statements, choose the most appropriate answer from the options given below. - Given below are two statements:
Statement (I) : ArkaMridula is a white pulp guava variety
Statement (II) : It is seedling selection from Allahabad Safeda
In light of the above statements, choose the most appropriate answer from the options given below. - Papaya hybrid free from typical papaya odour
(A) ArkaPrabhath
(B) Arka Surya
(C) CO 5
(D) Solo
Choose the correct answer from the options given below: - Given below are the two statements :
Statement (I) : Ambred is cross between Red Delicious X Amberi
Statement (II) : The Ambred tree is very dwarf
Based on these statement choose the correct option:
View More Questions
Top ICAR AIEEA Questions
- Which of the following statements is false?
- Which of the following is an example of an inventory?
- According to Adam Smith, productivity gains could be brought about through .
- The supply curve for an artificially scarce good is .
- Which of the following would not be considered an opportunity cost of paid employment?
View More Questions