Untitled

225
Table-so .eveal,s the €stiE.t6s ot cdponot6 of
v.rlation @lputqil fo. .11 tlalts tn t.ns ol p6!c6ntase.
Th. pelc€ntago ol tneE6 coDponents 1n totll va!1.nc6 stve
tn. tat€a o! !.1at1ve lbportabce o! *lilitlv€ lDit .o!tddltlve
effectE of sene. tblt contlol tba ph6notyplc
€tP!..61,on o! thage palaretels. th€ varianc€ du6 to
96n.!rl @lbhtng abtllty .flects rda hportant tor rtnt
p€lcentage (tsl), Ee.d 1nd€x (37:), llnt ind€x (36 *),
Etlple Iansth (24 t), !lb!€ Eclength (56 t) aDd oil
pe!c.nta!,e (73 l). Th€ hlqh Dgn1tuat. o! coliEnent o!
va!1.nce due to goerat colbj,nlnE .bittty €llects
r6v..r6d pledollnahce of lddltlv€ qeD€ .ction lor rh6se
Th€ae lesuttE lnco!!obo!.t€5 vth 6.r1ier
llndinqs publlahed 61sesh6!s by ltlll€! and talanl (1953) r
raltlt. (1965), al-&ll ahd tttl€r (1971) . l\bo-El-z.h.b and
abd-Arl. (1972) , lr€ledtth lnd Briitg. (1972), crit gl el.
(1974), El-Fas.r e! al. (19?4), Lelolt anal schrasitila!
(rg?ab), Ba*.! rnd vshlt d (1975), B!ry e! !I. {19?!),
rnn65 el rf. (r9?5). stngh el d. (1975), curu!.J. Rao s!
qI. (1977)r EI-Adr ql d, (1e73), a.bo-El-2.h!b ud
r{stealy {1979), RakbDanov e! 4!. (1979), rallson and
c€olge (1930)i slDgh anrt slngh (1931), Khan t! aL.
{rsa2).51nsh (1e42), tu!.n (1s€2), Abo-El-zah.b (1933),
Gu!5c lll r]t. (res3), 6irva .nd .1v€. (1e33), rur.tov lnd