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Pune University - FY BSc (Vocational) SEED TECHNOLOGY - I, April 2010

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Total No. of Questions : 5] P252 [Total No. of Pages :2 [3717] - 86 F.Y. B.Sc. (Vocational) SEED TECHNOLOGY Seed Development, Morphology and Plant Breeding for Crop Improvement (Paper - I) (Old Course) Time : 3 Hours] Instructions to the candidates: 1) 2) 3) [Max. Marks : 80 All questions are compulsory. Figures to the right indicate full marks. Draw neat labelled diagrams wherever necessary. Q1) Attempt the following : a) Define allogamy. b) What is Dus system? c) Sketch and label T.S. of microsporangium. d) What is megasporangium? e) Give any one method of breeding for disease resistance. f) What is mass selection? g) What is apomixis? h) [16] Define micropropagation. Q2) Attempt the following (any four) : [16] a) What is heterosis? Give the causes of heterosis. b) What is a clone? Describe the advantages of clonal selection. c) Explain the procedure for development of double cross hybrid. d) Define a fruit. Give the classification of fruit with the suitable examples. e) Explain the role of phenol colour in establishing cultivar genuineness. f) Comment on advantages & limitations of pureline selection. P.T.O. Q3) Write notes on (any four) : [16] a) Typical flower. b) Development of Dicot embryo. c) Grow out test in cotton. d) Polyploidy. e) Scope and objectives of plant breeding. f) Sexual reproduction. Q4) Attempt any two of the following : [16] a) Define poly embryony. Describe various routes of poly embryony. b) Give distinguishing characters, floral formula and floral diagram of any one family from dicotyledons. c) What is introduction? Give the objectives for introduction. d) State the law of segregation and explain it with suitable example. Q5) Define fertilization. Describe the detail procedure of double fertilization in [16] angiosperms. OR Define mutation. Give the classification of mutation. Add a note on spontaneous and induced mutations. kbkb [3717]-86 2

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Additional Info : F.Y. B.Sc. (Vocational) SEED TECHNOLOGY : Morphology, Seed Development, Testing for Cultivar Genuineness and Plant Breeding for Crop Improvement (Old Course) (Paper - I), Pune University
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