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31
Which Nitrogenous fertilizers is considered suitable for pineapple?
Discuss
Answer & Solution
Answer: Option C
Solution:
Ammonium sulphate is the nitrogenous fertilizer that is considered suitable for pineapple.
Pineapple plants require heavy manuring. Nitrogen increases the yield of fruit. It can absorb nitrogen in the form of ammonia, thus ammonium sulphate is the best fertilizer for pineapples.
Young pineapple plants should be fed 1 - 2 ounces of nitrogen every eight weeks, with the amount increasing by one ounce every 2 - 3 months.
32
Optimum seed rate for beet root (Chukandar) is (kg/ha)
Discuss
Answer & Solution
Answer: Option C
Solution:
The correct answer is Option C: 10 - 12
Here's why:
Beetroot, also known as Chukandar, needs enough space to grow properly.
Seed rate refers to the quantity of seeds required to sow in one hectare of field.
If you sow too many seeds (like with 14-16 kg/ha), the plants will be crowded and won't develop well.
If you sow too few seeds (like with 6-9 or 5-10 kg/ha), you might not get enough plants for a good yield.
10 - 12 kg of seeds per hectare provides the optimal balance.
It ensures enough plants to maximize yield without causing overcrowding.
Therefore, 10-12 kg/ha is the commonly recommended seed rate for beetroot cultivation.
33
Wind breaks are planted in orchards towards
Discuss
Answer & Solution
Answer: Option B
Solution:
A windbreak is a row or group of trees, shrubs, or structural elements (e.g. fences) that are used to block and direct the wind. Vegetative windbreaks are used in agriculture to prevent wind erosion or damage to field crops.
Windbreaks are planted in orchards towards the North West.
The windbreaks and shelterbelts should be formed in a North-West direction. These shall secure the crops and livestock against cold waves also.
34
Hermaphrodite variety of ridge gourd is
Discuss
Answer & Solution
Answer: Option C
Solution:
Ridge gourd is a cucurbitaceous summer vegetable grown throughout the year in the northeastern region and is used as a vegetable. It is a creeper and has a climbing or trailing habit. There is a wide variation in the shape and length of fruits.
Hermaphrodite variety of ridge gourd is Satputia. This is a cultivar of Bihar, which is hermaphrodite in sex form which means have both male and female parts and it produces smaller fruits in clusters. In each cluster, 5-7 fruits are borne. Fruits are pale-green. The average yield is 20 - 25 tonnes/ha. It is mainly grown in Uttar Pradesh and Bihar.
35
Cells without cell wall are termed as
Discuss
Answer & Solution
Answer: Option B
Solution:
Cells without cell walls are termed Protoplast.
It is a biological term coined by Hanstein in 1880 to refer to the entire cell, excluding the cell wall. It can be removed from the plant, bacterial or fungal cells using mechanical, chemical, or enzymatic means.
Protoplast can be used to study membrane biology and soma clonal variation, including the uptake of macromolecules and viruses.
36
Improved variety of cinnamon is
Discuss
Answer & Solution
Answer: Option A
Solution:
IISR-Nithyashree is the improved variety of cinnamon.
It was released in the year 1996 by IISR (Indian Institute of Spices), Calicut. It is one of the high-yielding and high-quality cinnamon selections. Bark oil, leaf oil and oleoresin contents are high giving a good aroma and taste. And no visible pest infection and diseases have been observed in this variety.
37
Commercial source for tartaric acid extraction is
Discuss
Answer & Solution
Answer: Option B
Solution:
The commercial source of tartaric acid extraction is Grapes.
Tartaric acid is naturally found in grapes and bananas and has been reported to enhance the flavor of grape- and lime-flavored beverages.
Tartaric acid is a white, crystalline organic acid that occurs naturally in many fruits, most notably in grapes. Its salt, potassium bitartrate, commonly known as cream of tartar, develops naturally in the process of fermentation.
38
Which is the anti-gibberellin factor?
Discuss
Answer & Solution
Answer: Option A
Solution:
Anti gibberellin factor is any substance that has the opposite effect of the Gibberellin hormone. It is usually a growth-inhibiting factor that causes dormancy and abscission.
Cycocel is the anti-gibberellin factor. It is a chemical substance that acts as an anti-gibberellin thus it inhibits plant growth. It causes the growth of a thick and short stem. It is also known as dwarfing agent.
39
Which of the following is not a self pollinated vegetables
Discuss
Answer & Solution
Answer: Option C
Solution:
Among the given options, chili is not a self-pollinated vegetable. That means it can be successfully cultivated without self-pollination.
Chilies widely used as vegetables and spice is an often cross-pollinated crop, where the extent of cross-pollination is up to 7 to 36 percent.
The chili flower is pollinated by transferring pollen to the scar of the fruit leaf. The pollen is easily transferred by insects, both the pollen and the scar are sticky.
40
Inflorescence of Anthurium is
Discuss
Answer & Solution
Answer: Option A
Solution:
Inflorescence of Anthurium is Spadix.
The spadix is a type of inflorescence having small flowers borne on a fleshy stem. Spadices are typical of the family Araceae, the arums or aroids. The spadix is typically surrounded by a leaf-like curved bract known as a spathe.
Anthurium spp. Belongs to the family Araceae. It is a typical spadix with a large colourful spathe. The spadix and spathe are the main focus of Anthurium breeders, who develop cultivars in bright colours and unique shapes.