CS MAINS 2014 BOTANY Paper-I

.SECTION-A

Q. 1 Briefly describe the following in not more than 150 words each 10xS=50

Q. Role of fungi in agriculture and medicine. 10

Q. Fructifications in Fungi.

Q. Reproductory organs in Chara.

Q. Plant quarantine.

Q. Energy plantations.

Q. With the help of suitable diagrams describe the evolution of sporophyte in Bryophytes. 20

Q. Give an account of pigments in Algae.

Q. Discuss about the physiology of parasitism.

Q. 3 Draw well labelled diagrams of the following

Q.3(a) Male thallus with antheridiophore of Marchantia.

Q. V.L.S. of Marsilea sporocarp.

Q. V.S. of sporophyte of Polysiphonia.

Q. V.S. of apothecium of Peziza.

Q. 4 Give the causal organism, symptoms-and -control measures of the following:

Q. Tikka disease of groundnut.

Q. Citrus Canker.

Q. Rust of wheat.

Q. Ergot of Rye.

SECTION-B

Q. 5 Describe the following in about 150 words each 10xS=SO

Q. Formation of Petrifaction. 10

Q. Relevance of numerical taxonomy. 10

Q. Position of monocots in APG classification. 10

Q. Embryo development in Arabidopsis.

Q. Importance of typification in plant nomenclature.

Q. 6 Draw well-labelled diagrams of the following

Q. Cone of Cycadeoidea.

Q. T.S. of cyathiurn of Euphorbia.

Q. T.S'. of coralloid root of Cycas.

Q. V.S. of leaf of We/witschia.

Q.7 Write an account of the floral structure of the following Give the botanical names of three important plant species belonging to each of the three families and specify their uses 12.5x4=50

Q. Orchidaneae

Q. Magnoliaceae

Q. Asteraceae

Q. Rubiaceae

Q. Discuss the role of tissue culture in crop improvement.

Q. How are plant protoplasts isolated and fused

Q.8(c) Describe in detail Hutchinson's system of classification and compare it with the classification
system of Engler and Prantl. 20