Crop Stand Establishment

MCQs on Crop Stand Establishment – Factors Affecting Optimum Stand Establishment: MCQs like ICAR-JEF, ICAR-SRF, ICAR-NET, IBPS-AFO/SO, Pre-PG, BHU Pre-PG, IFFCO-AGT, CCI, FCI, B.sc, M.sc, etc. Here is a reformatted version of the MCQs on Crop Stand Establishment – Factors Affecting Optimum Stand Establishment: Multiple-Choice Questions on Crop Stand Establishment 1. What does seed treatment with fungicides primarily aim to achieve?a) Increase seed sizeb) Enhance seed germinationc) Prevent seed-borne and soil-borne diseasesd) Improve seed color Answer: c) Prevent seed-borne and soil-borne diseasesExplanation: Fungicidal treatment involves applying chemicals to seeds to prevent seed-borne and soil-borne diseases, ensuring a healthy start for the crop. 2. Which of the following is used to control scale insects in sugarcane through pesticide treatment?a) Mancozebb) Malathionc) Carbendazimd) Captan Answer: b) MalathionExplanation: Malathion is commonly used as a pesticide treatment to control scale insects in sugarcane, providing protection against certain pests during the establishment phase. 3. What is the purpose of scarification in seed treatment?a) To add color to the seedsb) To soften or remove the hard seed coatc) To increase seed sized) To decrease seed germination time Answer: b) To soften or remove the hard seed coatExplanation: Scarification involves rubbing seeds against a hard surface or treating them to break down the tough outer layer, allowing for easier germination. 4. What is a common seed treatment for legumes to assist with nitrogen fixation?a) Fungicidal treatmentb) Pesticide treatmentc) Rhizobium treatmentd) Hot water treatment Answer: c) Rhizobium treatmentExplanation: Rhizobium treatment involves coating seeds with specific Rhizobium cultures to promote atmospheric nitrogen fixation, which benefits legumes during crop establishment. 5. What is the optimal temperature and duration for hot water treatment in sugarcane to control red rot and smut diseases?a) 45°C for 20 minutesb) 52°C for 30 minutesc) 60°C for 10 minutesd) 75°C for 5 minutes Answer: b) 52°C for 30 minutesExplanation: Hot water treatment at 52°C for 30 minutes is a common method to control red rot and smut diseases in sugarcane, helping to ensure healthy crop establishment. 6. Why is breaking seed dormancy important for crop stand establishment?a) To improve seed colorb) To prevent diseasesc) To ensure uniform germinationd) To reduce seed size Answer: c) To ensure uniform germinationExplanation: Breaking seed dormancy helps in ensuring uniform germination, leading to consistent crop stand establishment. 7. Which type of seed bed preparation is ideal for crops like groundnut and redgram?a) Coarse tilthb) Fine tilthc) Medium tilthd) No tilth Answer: a) Coarse tilthExplanation: Coarse tilth is preferred for crops like groundnut and redgram, as it provides adequate soil structure and drainage for optimal growth. 8. What effect can late sowing have on rain-fed crops?a) Increased yieldsb) Reduced yieldsc) Enhanced germinationd) Reduced pest incidence Answer: b) Reduced yieldsExplanation: Late sowing can lead to reduced yields in rain-fed crops, as the crop’s maturity may coincide with drought, and it may be more prone to pests and diseases. 9. What is the primary purpose of mixing seed with other materials like sand or soil?a) To increase the seed bulk for small-seeded cropsb) To reduce seed sizec) To improve seed colord) To increase seed germination rate Answer: a) To increase the seed bulk for small-seeded cropsExplanation: Mixing seed with other materials increases the bulk, allowing for more even sowing, especially in small-seeded crops like Sesamum, Lucerne, and mustard. 10. Which of the following factors does NOT significantly affect optimum stand establishment?a) Seed treatmentb) Seed colorc) Seed bed preparationd) Time of sowing Answer: b) Seed colorExplanation: Seed color does not significantly affect crop stand establishment, while factors like seed treatment, seed bed preparation, and time of sowing play crucial roles in achieving optimal stand establishment.