EFFECT OF IRROGATION ON THE GROWTH AND YIELD OF DIFFERNT WHEAT VARIETIES

Abstract

An experiment Was conducted at the experimental field of Sher-c-l3angla Agricultural University. i)haka during the period from December 2007 to March 2008 to s(Lidy the effect of irrigation on the growth and yield of dillerelit wheat varieties. i he experiment comprised two thetors; Irrigation: 3 levels (1 ) : Control. l: One irrigation a crown root initiation stage. 1: Two irrigation at Clown root initial jot) stage and grain Idling stage) and Variety: 4 LV,: l3ijoy, '12: l'rodip. V: Suti and '14: Results showed that the effect of irngatiOl) on difibrent plant parameters and yield v/is sigifi ticant. Shzn ificalilly (Lie loiuzest plant (79.99 cm), highest ti I icr number (4.89 plant"), spike Length (I 1.30 lii ,V1064). cm), grain yield (2.54 t ha") and straw yield (3.80 t ha'5 were recorded from I?. \Vlicreas, significantly the lowest values of these pzlt'a;))etCrS w:re obtained frotil I t ,. Genotypes also showed signi licatit variations in the plant eanl ly the highest plant height (80.03 cm). tiller tininiJer parameters swthed. Sign1 fl (4.87 plant''), spike length (10.00 cm), grain yield (2.50 t ha'') and straw yield (3.56 were obtained From the genotype 'a lues were obtained from V. I '12 whereas. the corresponding the lowest . Signi ticant interaction eftect of irrigation and genotype was also obsen'cd on di Herein plant ixIraliteters. [he longest plant (83.79 cm). the maxitflulfl number of total tillers (5.27 plant'), grain yield (2,75 t ha ) and straw yield (4.36 t ha' ) was recorded from the treatment combination of NV1, while tile corresponding lowest values were obtained hunt lu\$.