Ludhiana, October 4
The varieties
developed by Punjab Agricultural University (PAU) have dominated the
wheat scene during the past eight years not only in the Punjab but the
national level. A major share of wheat area falling in nearly 10
million hectares of the North Western Plains Zone (NWPZ), comprising
Punjab, Haryana, Delhi, Western Uttar Pradesh, parts of Rajasthan and
foothills of Himachal Pradesh, Jammu and Kashmir and Uttranchal, is
being cultivated by the PAU-developed variety PBW 343, released in
1995. Some wheat area is sown late after the harvesting of basmati
rice and potato, and in such lands PBW 373, released in 1996 has been
the best variety under irrigated late-sown conditions.
At the recent
All-India Coordinated Trials, conducted under irrigated timely sown
condition in NWPZ, PBW 343 has been one of the highest yielding
varieties and has been ranked first with respect to grain yield in
1992-93 and continuously from 1994-95 to 2000-01.
PBW 373 ranked
first with respect to grain yield in the All-India coordinated trials
conducted under irrigated late-sown conditions in the NWPW during
1994-95, 1995-96, 1996-97, 1999-2000, 2000-01 and 2002-03. PBW-373
ranked second in this highest series of trials during 1997-98 and
1998-99, the years during which another PAU variety PBW 435 ranked
first in the zone.
PBW 343 and PBW 373 possess high degree of
resistance to rust diseases and have remained free from yellow rust
even under artificial inoculation conditions.
Since the release of
PBW 343 in 1995, a significant shift in varietal distribution was
noticed in Punjab. The area under PBW 343 increased from 9.09 per cent
in 1996-97 to 46.39 per cent in 1997-98; 79.47 per cent in 1998-99;
and further to 89.50 per cent in 2002-03 owing to its better grain
yield, loading resistance, disease resistance and straw yield. This
year vertical popularity graph of PBW 343 is a unique example and is a
record in the history of wheat improvement in the state.
Significant
increase in wheat production has been witnessed by Punjab since the
release of PBW 343. Wheat production in Punjab was 125.18 lakh tonnes
in 1995-96 and increased to 159.00 lakh tonnes in 1999-2000.
Similarly, the average yield of wheat Punjab increased from 3884 kg/ha
in 1995-96 to 4704 kg/ha in 1999-2000. New records of wheat production
and yield were established during 1996-97, 1998-99 and 1999-2000. The
production declined in 2002-03 due to foggy weather and heavy rains
coupled with strong winds. The Special Committee on Varietal
Identification at its meeting during the 39th All India Wheat Research
Workers Meeting in Banaras Hindu University, Varanasi, from August 27
to 30 this year was impressed by the outstanding performance of PBW
343 in NWPZ.