Cultivation of Field Crops 1. Paddy (important points)
sn | questions | answer |
1 | The botanical name and family of paddy | Oryza sativa, Poaceae |
2 | The chromosome number of paddy | Ans.2n = 24. |
3 | The cultivated spp. of paddy | O. glaberima |
4 | PROTEIN % IN PADDY | 6-7% |
5 | Indica rice is grown in | india |
6 | .Japonica rice is grown in | Japan |
7 | Javanica rice is grown in | Indonesia |
8 | .Rice inflorescence is called as | Panicle |
9 | Optimum temperature for good rice crop growth is | 30-320C |
10 | Sowing of paddy in April-May and harvesting in August-Sept. is called as | Aus/Autumn/Pre kharif paddy |
11 | .Sowing of paddy in June-July and harvesting in October is called as | Aman/Kharif/Aghani |
12 | .Sowing of paddy in January-Feb and harvesting in April-May is called as | Boro/Summer/Spring |
13 | The best system of rice culture is | Transplanting |
14 | .The tillage implement, most suitable for rice cultivation is | Power tiller |
15 | Hulling percentage of rice is | 70-75% |
16 | The gene responsible for dwarfness in rice is | Dee-gee-woo-gene |
17 | First intervarietal cross variety of rice? | Jaya (TN1 = T141) |
18 | .Normally rice plant is transplanted at | 21-25 days after sowing (3-4 leaf stage) |
19 | Under SRI method, rice plant is transplanted at | .10-12 DAS (Days After Sowing) |
20 | SRI denotes | System of Rice Intensification |
21 | In rice ‘Dapog seedlings’ are ready for transplanting | Philippines |
22 | The nursery area required for providing seedlings for transplanting 1 ha rice field | 1000 m2 (1/10 ha) |
23 | Most prominent cropping pattern of rice in India? | Rice-Wheat |
24 | Rice prefer nitrogen uptake in | .Ammonical form (NH4). |
25 | The recommended dose of N, P and K for rice crop | 100:60:40 kg ha–1 |
26 | For correction of iron chlorosis in rice, following spray is recommended | 1% solution of ferrous sulphate |
27 | The nitrogen fixing bacterium found on root surface of rice | Azospirillum |
28 | The most important critical stage of rice for irrigation | Tillering to flowering stage |
29 | In low land rice, fertilizer is applied in | Reduced zone only |
30 | .Nitrogen use efficiency in rice is around | 30-40% |
