Maize important question for jrf agronomy

Agronomy General Agriculture

Maize important question for jrf agronomy




1 The botanical name of maize is Zea mays
2 Maize crop is also referred as Queen of cereals
3 The maize protein is known as Zein
4 Protein and oil per cent in Maize grain 8–10 per cent and 4–5 per cent
5 Most widely grown maize spp. in India? Zea mays indurate (Flint corn)
6 Leading state of rabi maize? Bihar
7 Maize variety widely grown in USA? Zea mays identata (Dent corn)
8 The sweetest maize species Zea mays sacchrata (Sweet corn)
9 Maize species produce starch similar to tapioca Zea mays ceretina (Waxy corn)
10 Seed rate of Hybrid maize 15 to 20 kg/ha
11 First maize hybrid released in India? .1961
12 Single cross technology of maize is given by East and Shull (1910)
13 Double cross technique of maize is given by D.F. Jones (1920)
14 Fodder crop maize varieties are African tall, J1006
15 Pop corn maize varieties are Amber pop, V L Amber. Pop, Pearl pop corn
16 Quality Protein Maize (QPM) varieties released by using Opaqua-2 genes
17 .QPM varieties are Sakti, Shaktiman 1 & 2, HQPM
18 Hybrid varieties of maize Ganga-1, 3, 5, 101, Ganga safed-2, Ranjit, Ganga-4
19 .Composite varieties of maize Jawahar, Vikram, Kishan, Ambar, Sona, Vijay.
20 The most critical stages for irrigation in maize Silking stage.
21 Maize crop leaves show red and purple colour due to deficiency of .Phosphorus (P)
22 CIMMYT Centro International de Mejorimiento de Maizy Trigo (International Centre for the
improvement of Maize and Wheat) situated in Mexico
23 Carbohydrates 70%
24 Area and Production Area : 130 m.ha.
25 maize is It is a C4 short day plant.
26 Soil Maize is best adapted to well drained sandy loam to silt loam soil
27 Hybrids 100 to 105 days. Deccan, Ganga Safed, Ganga-4, Ganga-5, Ganga-7,9, Histarch,
Sangam, In Tamil Nadu, CoH1, CoH2 and CoH3 Hybrids, 5.5 to 6.0 t/ha.
28 Promising Composites 100 to 105 days. Amber, Vijay, Kisan, Sona, Vikram, Jawahar
29 Time of sowing In India, it is grown in 3 seasons.
1. Kharif – June – July (85% of rainfed area)
2. Rabi – Peninsular India and Bihar. Oct – November
3. Spring : North India. Jan – Feb. Irrigated condiiton

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