Horticulture - Study Mode

[#486] Major post harvest problem in Gerbera is
Correct Answer

(D) Conking

Explanation

Solution: The major post-harvest problem in Gerbera is Conking . Gerbera daisies can suffer from conking, a condition that causes the stem to become weak and fold in half. Cold storage at night helps minimize conking problems. Preventing dehydration and bacterial growth in the water also helps keep Gerbera flowers upright.

[#487] Pant shubhra and pusa shubhra are the varieties of
Correct Answer

(A) Cauliflower

Explanation

Solution: Pant shubhra and Pusa shubhra are varieties of Cauliflower . Pant Shubra is a mid-season variety. This variety is characterized by semi-erect outer leaves. Inner leaves partially cover the curds which are compact, slightly conical, non-ricey, and off-white. This variety produces marketable curds by December - January. It takes about 120 days to produce marketable curds from nursery sowing. The yield potential of this variety is 250 q/ha. Pusa Shubhra is a variety of cauliflower. It belongs to the third maturity group. It is suitable for the rainy season. Curds are compact, a bit conical, creamish white and non-leafy.

[#488] Which one of the following is the F 1 hybrid of tomato?
Correct Answer

(A) Mangla

Explanation

Solution: Mangla is one of the given options that is the F 1 hybrid of tomato. An F 1 tomato hybrid occurs when you have two tomato plants of different varieties and then one is pollinated by the other variety's pollen. The seeds of the resulting cross-pollinated tomato will grow plants that are F 1 hybrids. The children of F 1 hybrids are F 2 . Fruits of the Mangla variety are ready for picking after 65 days of transplanting and are medium having bright skin, and resistant to fusarium, verticillium and nematode.

[#489] The chemical commercially used for prevention of sprouting in potato during storage is
Correct Answer

(C) CIPC

Explanation

Solution: The chemical commercially used for the prevention of sprouting in potatoes during storage is CIPC. CIPC [Isopropyl N-(3-chlorophenyl) carbamate] is the most widespread and commonly used sprout suppressant on potatoes when stored at 8 - 12°C. CIPC is primarily an herbicide that was introduced in the year 1951. All of these chemicals are federally regulated and applied by licensed applicators. These preservatives are only applied to the skin of the potato and are washed off by the consumer before consumption.

[#490] Pectin is measured by
Correct Answer

(A) Jelmeter

Explanation

Solution: Pectin is measured by Jelmeter . A jelmeter is a graduated glass tube with an opening at each end. It is used to determine the amount of pectin in fruit juice. The content of pectin can be measured by calculating the weight of the precipitation. It is an index of the amount of sugar to be used. The rate of flow of the juice through this tube is used as a measure of the jellying power of the juice.