01568naa a2200181 a 450000100080000000500110000800800410001910000140006024501140007426000090018852010290019765000110122665300300123770000220126770000170128970000160130677300640132210742991994-05-26       1977    bl ---       0--  u    #d1 aKUMAR, R.  aUse of linear measurement in the estimation of leaf area of some apricot peach plum, pear and guava varieties  c1977  aThe leaf (constant) factor "K" of stone fruits (nine varieties of apricot, ten of peach, eleven of plum), seven varieties of pear and ten of guava grown in Uttar Pradesh was calculated. the factor "K" has been suggested for different varieties with a difference in calculated and which was less than only 2 per cent. On thefurther  processing of leaf factor "K" fro apricot, apricot, peach, plum 0.758, 0.670, and 0.682 respectively can be used for calculating the leaf area except in the variety Charmagz of apricot and Elberta in Peach. Whereas leaf factor "K" for pear and guava can be taken as 0.706 and 0.757 safely. The figures thus derived on the basis of the mean values of "K" of all the above fruits studied and by multiplying with these values, thediffeence was always less than 5 per cent. Therefore, the above "K" factors designated for apricot, peach, plum pear and guava varieties can be safely used for calculating the actual leaf area of the above mentioned fruit plants and their varieties as stated above.  aGoiaba  aEstimativa da area foliar1 aSRIVASTAVA, R. P.1 aSINGH, A. K.1 aBANA, D. S.  tIndian Journal of Horticulturegv.34, n.3, p.229-236, 1977.