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Yellow Rust of Wheat::Identification and Control

August 28, 2011 Leave a comment

The outburst of yellow rust in Distts  of Kathua, Samba and Jammu on variety PBW343 inthe preceding season (2008-09) was serious. This disease survives on volunteer Wheat plants in the hills during the off season. The rust produce yellow pustules in stripes on the leave when the season advances these stripes become black. The rust become severe by the end of February or Ist week of March, the affected leaves dry up, the grain shrivel and the yield is very low.

Favourable conditions:-

 

Cloudy weather, high humidity during Feb. and  March.
Extent of damage:-         Extent of damage range from 20-40%
Recommendations v  Use resistant varieties and adopt timely sowing

v  Rust resistant varieties like DBW 17 and PBW 550 are recommended for Jammu Samba & Kathua region of J&K state.

v  The Sowing of Wheat should be done after treating the seed with bioagent Trichoderma  viride @ 4.0 g/kg seed + fungicide  Tebuconazole 2DS (Rexil) @ 0.1 gm/Kg of wheat seed or Carboxin 75 WP (Vitavax 75 WP) @ 1.25 g/Kg seed.

v  In case of appearance of yellow rust on the crop, spray of Propiconazole 25 EC (Tilt 25 EC) @ 0.1% is recommended to check its further spread. This treatment also provide protection against powdery mildew  and Karnal bunt disease , besides rust.

v   Spray the crop with bayleton 200 @ 0.1% mancozeb @ 0.25% or triadimefon @ 0.01%. Ist spray is to be given at the initiation of disease and repeat spraying after 10-14 days interval.

v  One Spray of propiconazole 25EC @ 0.1 per cent be given on appearance of the disease. This spray should be given on seeing the initiation of the disease in the field or at the appropriate time somewhere in early February

 

 

PBW-621(for wheat) and FDK-124 (desi cotton)-New Varieties from PAU Ludhiana

August 27, 2011 Leave a comment

Punjab Agricultural University of Ludhiana on Wednesday announced the release of new wheat and cotton varieties.

The varieties, named PBW-621(for wheat) and FDK-124 (desi cotton), were approved for release at a meeting of state variety approval committee (SVAC) for field crops held at farmers service centre under the chairmanship of director, agriculture, Punjab, Dr BS Sidhu.

The new wheat variety will be resistant to yellow rust disease which has extensively damaged winter crop of PB 343 variety this year.
Moreover, it is also resistant to black rust disease though it has not attacked crop in India,” Punjab Agricultural University (PAU) Director Research S S Gosal said today.Revealing another feature of wheat variety, Gosal said the height of this semi dwarf variety is 15 centimeter more than that of other wheat varieties, hence it will lead to generation of more straw for farmers for extra income.
Wheat straw fetches Rs 500 to 600 per quintal in the market.He said PAU has sufficient seed of new wheat variety which will be given to farmers ahead of sowing in rabi season. Though over 90 per cent area is under Bt cotton, PAU developed new variety FDK-124 of ‘desi’ cotton that would be resistant to Cotton Lead Curl Virus (CLCV).CLCV has affected Bt cotton but the new variety will be highly resistant to it,” he said. In Punjab, 5 to 8 per cent area is still under ‘desi’ Cotton.He said it is an early maturing and high yielding variety of desi cotton. Taking about 160 days to mature, the variety gives an average seed cotton yield of 9.28 quintals per acre, he added.Sufficient seed of FDK-124 is available for multiplication.