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This collection of multiple-choice questions has been meticulously curated to of fer a comprehensive understanding of the diverse aspects of vegetable sciences. The field of vegetable sciences encompasses the study of various aspects of vege table production, including cultivation, breeding, physiology, seed production and organic production. This compilation consists of multiple choice questions along with answer keys on different aspects of vegetable science and aims to serve as a valuable resource for students preparing for NET/JFF/SRF and other competitive exams.

1 Brassica oleracea L. var. botrytis is the botanical name of  a) Cabbage c) Cauliflower  b) Knol-Khol d) None of these  2 Cauliflower was introduced in India in 1822 by ________ from Garden, London.  a) Dr. Jemson b) Dr. Kalloo  c) Herbalist Dodens d) None of these

1 Which soil is most suitable for bottle gourd cultivation?  a) Sandy loam soils. b) Clayey soil  c) Clayey loam soil d) Silt loam soil  2 The ideal pHof soil for growing bottle gourdis?  a) 4-5 b) 8-9  c) 3-4 d) 6-7  3 What is the desirable soil temperature for good bottle gourd growth?  a) 35-40°C b) 10-15°C  c) 18°-22°C d) 40-45°C

1. What is the main negative impact of physiological disorders on root crops? a) Deterioration of quality and visual characteristics  b) Nutritional imbalance  c) Decrease in yield  d) None of these 2. Forking is a common physiological disorder of which root crop? a) Radish c) Beetroot b) Carrot  d) Turnip

1 What is the best time to sow onion seeds in Northern Hilly regions?  a) January to February b)  March to April  c) May to June  d) September to November  2 Which type of soil is best for onion cultivation?  a) Sandy loam    b)  Clay loam  c) Alluvial soil  d) Both a and b  3 What should be the pH range for onion cultivation?  a) 4.4-5.0    b)  5.5-6.5  c) 6.0-7.5    d)  6.5-7.5

1. The soils best suited for leafy vegetables are: a) Clayey soils c) Sandy soils b) Well drained loamy soils  d) Any type of soil  2. How long does itgenerally take for leafy vegetables to grow? a) 35-50 days after sowing  b) 100-120 days after sowing   c) 90-95 days after sowing  d) 50-60 days after sowing   

1 The best age for transplanting of brinjal seedlings is:   a) 4-5 weeksold b) 1-2 weeksold  c) 8-9 weeksold d) 10-12 weeksold 2 The recommended seed rate of tomato is:   a) 100-200g/ha   b) 1-1.2 kg/ha   c) 500-600g/ha   d) 33-4 kg/ha  3 The best time for sowing tomato is:   a) September to October b) Mid-March to April   c )  Mid-December to January d) August to September  

1 Chromosome number of garden pea is   a) 2n=2x=14 a) 2n=2x=18  c) 2n=2x=20 b) 2n=2x=22 2 Origin of French Bean    a) South America b) South Mexica  c) Africa d) Europe 3 Pea is the    a) Cross-pollinated b) Often-cross pollinated  c) Self-pollinated d) None of the above  

1. Quantitative characters are governed by a) Monogene c) Recessive gene b) Bi-gene  d) Polygene 2. Monohybrids are derived by hybridizing two individuals which differ for a) Single-character c) Quadruple character b) Double character  d) Multiple character

1 What is the isolation distance for raising foundation seed in bottle gourd?   a) 800 m b) 700 m  c) 600 m d) 500 m  2 Roguing of off-type plants in bottle gourd seed production should be done at how many stages?  a) Three b) Four  c) Two d) Five  3 Where are bottle gourd seeds stored after extraction?  a) Open containers b) Shade  c) Air tight containers d) Open

1. Who is often referred to as the father of organic farming? a) J.I. Rodale c) Rudolf Steiner b) Sir Albert Howard  d) Rachel Carson 2. Which organization is responsible for setting and regulating organic farming standards in the United States? a) United Nations (UN)  b) World Health Organization (WHO)  c) United States Department of Agriculture (USDa)  d) Environmental Protection Agency (EPA)

1. Which type of vegetable is often grown in shade net house? a) Tomato c) Radish b) Lettuce  d) Cucumber 2. What is the primary advantage of greenhouse cultivation for vegetable production? a) Increased exposure to natural elements  b) Protection from pests and diseases  c) Lower cost of production  d) Reduced need for irrigation

1 Sechium eduleis the botanical name of  a) Chekurmanis b) Basella  c) Chow-Chow d) Water Leaf  2 Cylon Spinach is also known as  a) Chayote b) Malabar Spinach  c) Indian Spinach d) Water Leaf  3 Botanical name of Leek is  a) Allium porum b) Allium sativum  c) Allium cepa d) None of thes

1. Choose the correct option for the characteristic of growth.  a) It is an irreversible permanent increase in size of an organ or its parts or even of an individual cell  b)  It is accompanied by metabolic processes  c) It occurs at the expense of energy  d)  All of the above 2. Plant growth is unique because  a) Plants bear the capacity for unlimited growth  b)  Plants bear the capacity for limited growth  c) Plants have diffused growth that differs from animals  d)  None of the above  

1 What is the scientific name of Dill  a) Acorus calamus b) Pimenta dioca  c) Pimpinella anisum d) Anethum graveolens  2 Important chemical content present in Asafoetida is  a) Phenol b) Terbein  c) Ferumine d) Limone  3 Karimunda is a variety of  a) Ginger b) Black Pepper  c) Cardemom d) Cumin

1 Canavalia ensiformis is botanical name of   a) Sword Bean               b) Winged bean   c) Jack Bean                   d) Cluster Bean  2 French Bean is  a) Day neutral               b) Long Day   c) Short day d) None of these 3 Curry Leaf belongs to  a) Umbelliferae            b) Moringaceae  c) Rutaceae                   d) Polygonaceae