Proceedings of the Fifth Asian Regional Maize Workshop - Search ...

Table 1. Total area under maize and production in Myanmar. 1982-1992.
Year Planted Harvested Yield Production
area (ha) area (ha) (kg/ha) (t)
1982-83 170920 136010 1770 232577
1983-84 207910 180940 1668 301807
1984-85 228767 186316 1584 295124
1985-86 199319 171000 1704 291384
1986-87 222524 159248 1746 278047
1987-88 159964 134837 1"614 217627
1988-89 137961 120957 1554 187967
1989-90 133289 122740 1536 188528
1990-91 140771 125197 1524 190800
1991-92 140232 124163 1500 186244
Maternal inbred 1i nas.
The inbred Tzi 18 is the maternal parent used in hybrids Yezin No. 1 and No.2. It is short
statured and intermediate in maturity. Due to poor pollination, its yield was 15-20 baskets/acre
(= 900-1200 kg/ha).
Paternal inbred line of Yezin No.1.
The inbred TZi-25 was used as male parent of the hybrid Yezin No.1. Plants are 150 em high
and have intermediate maturity.
Paternal inbred line of Yezin No.2.
The inbred TZi-28 was used as male parent of the hybrid Yezin No.2. Plants are 135 em high
and are early maturing. Both TZi 18 and TZi 28 have a potential yield of 20-25 baskets/acre
(=1200-1500 kg/ha).
perform­
on-farm demonstration trials.
Since the 1990-91 rainy season, hybrid corn varieties have been compared for their
ance and yield with other high yielding varieties in Pyinmana (Table 2) and Lewe.
Table 2. Results of corn trials planted at Pyinmana. 1992-1993 and 1993-1994.
1992-93 1993-94
Character Shwe Wa-l Suwan 3 Yezin Yezin-2 Yezin-l Yezin-2
50% tasseling (days) 59 58 44 50 42 40
Plant hgt (em) 200 182 182 180 185 210
Ear hgt (em) 97.5 90 85 72.5 97 102
Days to harvest 100 99 95 100 95 100
Yield (kg/ha) 3480 4920 6180 6060 5460 6180
% best check 126 123 111 126
78