Horticulture - General Knowledge Questions and Answers

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Powdery Mildew of Okra is caused by:

A)

F. Oxysporium


B)

E. Cichoracearum


C)

R. Solani


D)

C. Abelmoschi



Correct Answer :

E. Cichoracearum


Explanation :

Powdery mildew, caused by the species of Erysiphe cichoracearum.

Which of the following species of Rosa is native of Bengal?

A)

R. rubiginosa


B)

R. persica


C)

R. rugosa


D)

R. clinophyllia



Correct Answer :

R. clinophyllia

Cell wall of bacteria is made up of:

A)

Cellulose


B)

Peptidoglycan


C)

Chitin


D)

None of the above



Correct Answer :

Peptidoglycan


Explanation :

Bacterial cell walls are made of peptidoglycan (also called murein), which is made from polysaccharide chains cross-linked by unusual peptides containing D-amino acids.

Bacterial cell walls are different from the cell walls of plants and fungi which are made of cellulose and chitin, respectively.For different species of plants, animals, bacteria, algae, fungi have different types of cell wall structures.

Mechanism of self pollination in which flowers do not open, is known as:/ स्व परागकण की वह विधि जिसमें पुष्प नहीं खुलते है, कहलाती है:

Chasmogamy/ कॅसमोगेमी
Cleistogamy/ क्लीस्टोगेमी
Syngamy/ सिनगेमी
None of the above/ उपरोक्त कोई नहीं


Correct Answer :Cleistogamy/ क्लीस्टोगेमी

Deficiency of Molybdenum in plants causes./ पौधों में मॉलिब्डिनम की कमी के कारण होता/होती है:

Chlorosis/हरिमहीनता
Necrosis & Motling/ ऊतकक्षय
Wilting/ मुरझाना(शिथिलन)
None of the above/ उपरोक्त कोई नहीं


Correct Answer :Necrosis & Motling/ ऊतकक्षय

Implement used for churning the soil in standing water is:/ ठहरे हुए जल में मृदा का मंथन करने वाले हल को कहते है:

Meston plough/ मेस्‍टान हल
Paddy weeder/ पैडी वीडर
Roller/ रोलर
Puddler/ पडलर


Correct Answer :Puddler/ पडलर

The guard cells in stomata are connected with adjacent cells through:/ रंध्र  की रक्षक कोशिकायें समीपस्‍थ कोशिकाओं से जुड़ी रहती है

Endoplasmic reticulum/ अंतः प्रदव्ययी जालिका
Pollen tube/ परागनलिका द्वारा
Plasmodesmata/ जीवद्रव्य तंतु द्वारा
Intrinsic proteins/ अंतस्‍थ प्रोटीन द्वारा


Correct Answer :Plasmodesmata/ जीवद्रव्य तंतु द्वारा

Chlorophyll contain:/ क्लोरोफिल में संगिठत है:

4 Pyrrole rings/ 4 पायरोल रिंग
Purines / प्यूरीन
Phytic acid/ फाइटिक अम्ल
All of the above/ उपरोक्त सभी


Correct Answer :4 Pyrrole rings/ 4 पायरोल रिंग

Species of mushroom grows in humus is:/ सड़ी पत्तियों की मिट्टी में उगने वाली मशरूम की प्रजाति है:

Lepiota/लेपियोटा
Lepista/ लेपिस्टा
Morchella/ मॉरशैला
All of the above/ उपरोक्त सभी


Correct Answer :All of the above/ उपरोक्त सभी

Which of the following is fungicide?/ निम्न में से कौनसा कवकनाशी है?

Maneb/ मेनेब
Zineb/ जेनेब
Naabam/ नाबम
All of the above/ उपरोक्त सभी


Correct Answer :All of the above/ उपरोक्त सभी

Time between initial peretration of pathogen in plant and onset of symptoms is known as:/ रोगाणु के पौधों में प्रवेश करने से लेकर विभारी के प्रथम लक्षण आने तक का समय कहलाता है

Latenet period/ अव्यक्त काल
Threshold time/ प्रारम्भिक काल
Stationary phase/ स्‍थाई समय
Incubation period/ ऊष्मायन काल


Correct Answer :Incubation period/ ऊष्मायन काल

Epicotyl grafting is done in:/ बीजपत्रोपरिक कलम बांधी जाती है:

Mango/ आम
Cashew/ काजू
Apple/ सेब
Both mango and cashew /आम व काजू दोनों


Correct Answer :Both mango and cashew /आम व काजू दोनों

Shifting cultivation is also known as:/ स्‍थानांतरी जुताई को कहा जाता है:

Jhuming/ झूम कृषि
Khallu/ खल्लु
Dahiya or podo/ दहिया अथवा पोडो
All of the above/ उपरोक्त सभी


Correct Answer :All of the above/ उपरोक्त सभी

Plant parts used for mutagenesis are:/ उत्प्रेरण हेतु प्रयोग किये जाने वाला पौधे का भाग है:

Seeds/ बीज
Pollen grains/ परागकण
Buds & Cutting/ कलिका एवं कटिंग
All of the above/ उपरोक्त सभी


Correct Answer :All of the above/ उपरोक्त सभी

Exchange across cell membrane is due to:/कोशिका झिल्ली में आयन आदान प्रदान की वजह है:

Lipids/ लिपिड
Tunnel proteins / टनल प्रोटीन
Carbohydrates/ कार्बोहाइड्रेट
Globin protein / ग्लोबिन प्रोटीन


Correct Answer :Tunnel proteins / टनल प्रोटीन

Centre of origin of fenugreek is:/ मेथी की उत्पत्ती का केंद्र है:

Madagascar/ मेडागास्कर
Egypt/ मिस्र
Europe/ यूरोप
East Indies/ ईस्ट इंडीज


Correct Answer :Egypt/ मिस्र

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