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Pune University - FY BSc (Vocational) SEED TECHNOLOGY - II,April 2010 (Old Course)

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Total No. of Questions : 5] P257 [3717] - 93 F.Y. B.Sc. (Vocational) SEED TECHNOLOGY Seed Physiology and Seed Production (Paper - II) (Old Course) Time : 3 Hours] Instructions to the candidates: 1) 2) 3) [Total No. of Pages :2 [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) What are germination stimulators. b) Enlist causes of dormancy. c) Define seed vigour. d) What is seed ageing? e) What are orthodox seeds? f) What are nucleus seeds? g) Define male sterility. h) [16] What is emasculation? Q2) Attempt any four of the following : [16] a) Explain any two factors affecting physiological changes of seeds during storage. b) Comment on recalcitrant seeds. c) Distinguish between seed and grain. d) Give chemical composition of seed. e) Comment on effect of previous crop on seed production. f) Comment on compact area approach in seed production. P.T.O. Q3) Write notes on (Any four) : [16] a) Synthetic seeds. b) Germination stimulators and inhibitors. c) Enzymatic activity during seed germination. d) Indian seed Industries. e) Selection of land for seed production. f) Characteristics of sowing quality seed. Q4) Attempt any two of the following : [16] a) Explain invigoration treatment to improve seedling establishment. b) Describe various respiratory pathways during seed germination. c) Comment on systems of release and notification of varieties for general cultivation. d) Explain role of anthesis and pollen viability in seed production. Q5) Give an account of synthesis of food reserves. OR Describe in detail the procedure for seed production in Maize/Potato. kbkb [3717]-93 2 [16]

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Additional Info : F.Y. B.Sc. (Vocational) SEED TECHNOLOGY : Seed Physiology and Seed Production (Old Course) (Paper - II), Pune University
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