Horticulture - Study Mode

[#981] 'Spongy tissue' is a serious problem of mango is cultivar
Correct Answer

(B) Alphonso

Explanation

Solution: Spongy tissue is a serious problem of the Mango cultivar Alphonso . Spongy tissue is a physiological ripening disorder in 'Alphonso's mango. The spongy tissue develops as yellowish white corky patches with or without air pockets in the breakdown tissues. It is caused by the shift of the seed to germination mode inside the fruit where it absorbs nutrients from the surrounding fleshy part of the fruit, making it appear white and spongy.

[#982] The scientist, . . . . . . . . has been called as the father of Organic Farming.
Correct Answer

(A) Albert Howard

Explanation

Solution: The Scientist, Albert Howard has been called the Father of Organic Farming. The concepts of organic agriculture were developed in the early 1900s by Sir Albert Howard, F. H. King, Rudolf Steiner and others who believed that the use of animal manure cover crops, crop rotation and biologically based pest controls resulted in a better farming system. Howard, having worked in India as an agricultural researcher, gained much inspiration from the traditional and sustainable farming practices he encountered there and advocated for their adoption.

[#983] Flower colour in Kochia is
Correct Answer

(D) Indistinguishable

Explanation

Solution: The flower colour in Kochia is Indistinguishable . Kochia is the scorpion grass, an ornamental plant also grown as a forage crop. When it grows, it is lush green in colour but turns red as it matures. The flowers of Kochia lack petals and have 5 winged sepals that are green in colour. The seeds when mature, are rough, flat, triangular and grayish-black.

[#984] 1 st crop raised in hydroponics is
Correct Answer

(C) Tomato

Explanation

Solution: Hydroponics is a type of horticulture and a subset of hydroculture that involves growing plants, usually crops, without soil, by using water-based mineral nutrient solutions in aqueous solvents. William Frederick Gericke , a physiologist at the University of California at Berkeley, is regarded as the father of Hydroponics. The first crop raised in Hydroponics is Tomato grown by William Gericke in 1937. He grew tomato vines about 7.6 metres high in his backyard in a mineral nutrient solution.

[#985] Which of the following monoecious line is used for the development of muskmelon F1 hybrid-Pusa Rasraj?
Correct Answer

(C) M3

Explanation

Solution: M3 is the monoecious line used for the development of muskmelon F1 hybrid-Pusa Rasraj. A monoecious line M-3 developed at IARI and crossed with Durgapura Madhu gave rise to the F1 hybrid, Pusa Rasraj. As a result of the development of a true breeding line, the muskmelon hybrid Pusa Rasraj was developed. These homozygous gynoecious lines are maintained by using GA3, 1500 ppm or silver nitrate 200 - 300 ppm or sodium thiosulphate 400 ppm to induce staminate flowers at two and four true leaf stages.