<div style="text-align: justify;">Stripe rust of wheat (Puccinia striiformis f.sp. tritici; Pst) incurs substantial yield losses in wheat worldwide. Two Indian Pst pathotypes 38S102 (I) and 46S119 (Yr9 virulence) showed incompatible and compatible interaction respectively in variety PBW 343. The histopathological study using confocal microscopy revealed that during incompatible interaction comparatively longer abortive germ tubes are produced with a rapid response at early stages of infection but with no fungal colonization. Whereas, in compatible interaction, germ tubes were shorter with infection peg formed above the stomata subsequently leading to colonization. The detailed microscopic observations showed that necrotic regions were more prominent in incompatible interaction than compatible interaction. This information would aid in understanding the growth and virulence mechanism of stripe rust pathogen in wheat.</div>

<div style="text-align: justify;">Histopathological analysis of incompatible and compatible interaction of <em>Puccinia striiformis</em> f.sp. <em>tritici </em>on wheat at early infection stage</div>

<p>Foliar blight of wheat caused by Bipolaris sorokiniana, &nbsp;Alternaria triticina, Pyrenophora tritici-repintis and Curvularia lunata are gaining importance especially in North Western and North Eastern plain Zones (NWPZ &nbsp;and NEPZ) of India. The experiment was conducted at main experimental farm N.D.U.A. &amp;.T. Kumarganj, Faizabad (U.P.) by taking two wheat varieties i.e. NW1014 and HUW 234 and three tillage systems i.e. zero tillage, &nbsp;FIRBS (Furrow Irrigated Ridged Bed System) and Conventional tillage. Zero till resulted in higher mean per cent disease index (PDI) with variety HUM-234 in the first and second year, respectively, of 72.50 and 69.44 per cent. Under conventional tillage, however, highest yield and yield contributory characters recorded with combination variety NW-1014 during both the years. Conventional tillage with 41.30 and 42.50 q/ha had non-significantly higher yields in first and second year over zero tillage (38.75 and 40.60 q/ha).</p>


<p>Assessment of losses by foliar blight of wheat (Triticum aestivum L.)with reference to tillage option management in plain region of Uttar Pradesh, India</p>


Histopathological analysis of incompatible and compatible interaction of Puccinia striiformis f.sp. tritici on wheat at early infection stage

Assessment of losses by foliar blight of wheat (Triticum aestivum L.)with reference to tillage option management in plain region of Uttar Pradesh, India