Use of only disease free seeds and use of disease resistant varieties are the most important control measures that could be taken to successfully grow chickpea in an area where bacterial blight disease is common.

Correct Option: C

Use of only disease free seeds and use of disease resistant varieties are the most important control measures that could be taken to successfully grow chickpea in an area where bacterial blight disease is common.

Three crops that contribute maximum to global food grain production are Wheat, rice and maize, which belong to the family Poaceae (Graminae).

Correct Option: A

Three crops that contribute maximum to global food grain production are Wheat, rice and maize, which belong to the family Poaceae (Graminae).

For curing of tea, a bacteria Micrococcus candicans is used. Curing of tea leaves is brought about by the activity of bacteria. It is essentially an oxidation, dry fermentation process, during which water is driven off the green colour is lost and the leaves assume a tougher texture and undergo chemical changes. Mycorrhiza is a mutually beneficial association between fungi and the roots of higher plants. Virus and fungi are not involved in the curing process of tea leaves.

Correct Option: D

For curing of tea, a bacteria Micrococcus candicans is used. Curing of tea leaves is brought about by the activity of bacteria. It is essentially an oxidation, dry fermentation process, during which water is driven off the green colour is lost and the leaves assume a tougher texture and undergo chemical changes. Mycorrhiza is a mutually beneficial association between fungi and the roots of higher plants. Virus and fungi are not involved in the curing process of tea leaves.

Parthenocarpy is the development of fruits without prior fertilization which results in the formation of seedless fruits. In some plant species, parthenocarpic fruits are produced naturally or they may be induced by treatment of the unpollinated flowers with auxin. Removal of androecium before pollen release is called emasculation which is helpful in preventing unwanted pollination. Vernalized seeds are treated at ion temperature for breaking dormancy. Phenyl Mercuric Acetate is an antitranspirant. Gibberellins and Auxins are known to induce parthenocarpy in plants. If a tomato plant is treated with a low concentration of auxin and gibberellic acid it’ll produce fruits without fertilization i.e. parthenocarpic fruits.

Correct Option: A

Parthenocarpy is the development of fruits without prior fertilization which results in the formation of seedless fruits. In some plant species, parthenocarpic fruits are produced naturally or they may be induced by treatment of the unpollinated flowers with auxin. Removal of androecium before pollen release is called emasculation which is helpful in preventing unwanted pollination. Vernalized seeds are treated at ion temperature for breaking dormancy. Phenyl Mercuric Acetate is an antitranspirant. Gibberellins and Auxins are known to induce parthenocarpy in plants. If a tomato plant is treated with a low concentration of auxin and gibberellic acid it’ll produce fruits without fertilization i.e. parthenocarpic fruits.

Triticale is the Ist man made cereal which is made by the crossing of wheat (Triticum aestivum) and Rye (Secale cereale).

Correct Option: D

Triticale is the Ist man made cereal which is made by the crossing of wheat (Triticum aestivum) and Rye (Secale cereale).