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Third Semester M.Sc. Degree Examination, December 2025 Botany BO 531: PLANT BREEDING, HORTICULTURE AND BIOSTATISTICS (2024 Admission) Time: 3 Hours Max. Marks: 75 Answer these questions in one or two sentences.  Each question carries 1 mark. 1. Who introduced maize in India? 2.Name an organization in India for plant introduction. 3.  What is BSI? 4.What is Super Rice? 5.Define somaticplastic sterility? 6.What is a chemical mutagen? Give example. 7.What is Arboriculture? 8.What is MAP in Horticulture? 9.Define probability. 10. What is LSD in Biostatistics? (10 × 1 = 10 Marks) II.Answer the following questions in not more than 50 words . 11] Comment on Primary plant introduction.                OR 12. What are microcenters? Explain. 13.Explain zygotic sterility. How can we overcome this in plant breeding?                          OR 14 Describe a green house and its uses. ...

Third Semester M.Sc. Degree Examination, February 2024                 Botany BO 231: PLANT BREEDING, HORTICULTURE AND BIOSTATISTICS (2019 Admission onwards) Time: 3 Hours I.Answer the following questions. 1.What is atomic gardening? 2.Name the cardamom research institute in Kerala. 3.Explain advantages of distant hybridisation. 4.Describe plant variety rights. 5.Write short notes on arboriculture. 6.What is vermicomposting? 7.Give short notes on cut flower industry. 8.What is ANOVA? 9.Describe the properties of binomial distribution. 10. Explain the use of LSD. Max. Marks: 75 (10 x 1 = 10 Marks) II.Answer the following questions in not more that 50 words. 11. (a) What do you mean by genetic modification techniques? OR (b) What is center of diversity of a species? 12. (a) Compare auto and allopolyploidy. OR (b) What are requirements of back cross breeding? 13. (a) Describe ideotype breeding and its significance. OR (b) What is the role of seed cer...