الفهرس 
IntroductionOnly 14 pages are availabe for public view
Abstract
SUMMARY
Two tield experiments were conduoted during 1979 and
1980 seasoDS in sl)uth Tahreer, to study’ the etfeot ot some
micro - elements lmd plant dens 1ty on the growth and yield of
peanuts{var. Giza 4).
The so11 ”t the experiments was aan4 textured having \
a PH value ot 6.8 and 7.0 in 1979 and 1980 seasons,respeotively.
Also,the so:L1 contained 2.6 , 3.4 and 0.068 ppm. in the
first season and 0.3 • 0.1 and 0.012 ppm. in the seoond season
trom. Zn , lin flond B respeotively.
Each experl.ment included 24 treatments which were the
~omb1nation ot three distanoes between hills and eight treatmenta
ot mioro - l!tlements.
Distances between hills were I 10 , 20 and 30 om. and
between ridges 60 om. in all oases. Micro - element treatments
werea Zero (cont~)l) to.4~ znS04 (Zn) ,0.4% JlDS04·(lin) ,0.3% H)BOJ
(E) ,0.4” ZDS04 + C).4~ KnS04 (Zn + lin) ,O.4~ ZDS04 + 0.3” H)BO)
(Zn + B) ,0.4% MnS04+ 0.3~ ~BO, (lin + B) .O.4~ ZDS04+ 0.4% 1In-
804 + 0.)” B,B03 l(Zn + lin + B),as foliar application after 60
days from sowing.
ft.. uper.l.mental d••1p •••• plit plot with tour repl1oati0D8.
where tl18 three uatano •• be•••• hills were arran-’
gad in the ~1n plots aDd the n.b plots were •• signed to moro
e1em8nt ’treatmentli. The sub p10t area 1ftUI 21.6 •.2 •
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Results oould be ~Jmmar1zed as follow.,
l.Dry weight ot leaves as well a8 braneh•• /plant was dearea-,
sed significantl.y by increasing plant densi tJ’.
1I10ro _ elementll showed significant e:tf’eot on dry weight of
leave. and branches/plant ~ both seasons. B,e1ther alone
or in different combinations showedfavourable ettect on dr1
we1&ht ot leaves as well aa branches/plant.
2. Increasing the elistance between hills decreased signifioantly
plant height. 011 the other hand,the numberot branohes/plant
was inversely cl,rrelated with plant dens1tJ:.
B aDdlin e1ther alone or in oombiDation se. to have better
ettect on plant height and numberof branche./plant ot peanut
than the oontrol treatment.
3.Weight 0’1 100 pods as well as 100 seed .eight •• re great17
atfected by the spacing between’hills aDd were inversely 00-
rrelated with the numberot plants/tad • ..l1l micro-element
treatments were s1gDif1cant17 superior to oontrol treatment
on lOO-pod we18ht as well as 100- •• ed weight.
!reataeDts including JIll and B either alone or in combiDatlon
were superior to the OOJltrol treatment 1J1 their effect on
these charac’l;ezs.
4.The shelling petreentage 4eoreue4 w1.’thrideDing the diatanoe
between hi1l. •• !rhe ocab1.mLt1mis between B aDdZn or lin were
81gD1”1oant17 IJUperi.or to- ueataeD.~. oon’ta:l.zJ1ng Zn + )In + B,-.
)Ia.h. u4 oOl1b~l 1Jltheir eueot oa Delling peroentqe.
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5.Increasing the ci1stance between hills caused significant
increases in nwllber ot pods/plant. nero - elements bad
significant efflict on number of pods/plant ot peanut.
~1Natment8 inCll1ding B 91ther alone or in combinations were
superior to othlar mioro - elements.
6.Pod yield/fad. seems to have been direotly oorrelated with
plant population. Increasing distanoe between hills from 10
to 20 or .30 om. deoreased the pod yield by 8 and 13 % in the
first season and by 9 and 13 % in the seooDd season,respectively.
As regards the effect of micro - e1ements on yield
ot pods/tad.,all micro-element treatments ~aBsed the
control treatment. B had better effect than lin &nd. Zn on
71.14 of pods/fad.
7.IncreasiDg plant population by deoreas1Dgdistance between
hills increased the protein yield/tad. ,as well as protein
percentage. Protein yield and protein percentage increased
markedly as a result ot apply1xJ.gmicro - elements in sUJgle
as •• 11 as in dift’erent oombinations.
In general, B either alone or in ocab1Dat1on ~d better
etteot on protein 11eld than other treatments.
8.!he oU percentage in peazmt seed was inversely oorrelated
”
with plant population wh1l.e. the 011 71814111U1d1reotly 00-
rrelated with plant dpa1tJ’.
JI1.cro - 81_8%1ts a:ueoted 81gn1t1~t17 011 71eld as well as
011 percentage. B a1ther alone or in oOlllb1Dations was superior
to treatments oontaining lin • Zn aDd. the oontrol.
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9.Emptypod percentage was significantly 1n:t1uenoedto different
extents by plant population. Inoreasing distance bet~
weenhills decreased emptypod percentage.
Application of micro - elements deore«sed significantly
percentage ot emptypods.
lO.Immaturepod percentage was inversely oorrelated with spacing
between plants. M1oro- elements showedsignificant
efteot on percentage of immature pods.
Treatments including B either alone or in combiDatioDSgave
best results.
11.Inorea81Dg distance betweenhills decreased significantly
percentage ot rotted pods•
.’ Onthe other hand, mioro - elements application had no signifioant
effeot on rotted pod percentage.
l2.lIn and Zn concentration in peanut leave. 1noreased 81gD1fiaantly
at the higher dens!ties.
l).1In concentration in leaves was olearly’ ~:t.oted by lin application.
The greatest value of lin (145 ppm.)was obtained
by application ot’ lin alone 1’011011’84 bY’Zn + Jfn and lin + B
treatments (121 and 92 ppm.) ,~resp.ct1ve17. Whereasthe
lowest lin ooncentration ( 55 and 62 ppm.) was obtained :trom
B and Zn treatments.
14.!he application of Zn in QGlbina:t1on with B or lin had better·
effect than the application of Zn alone. .
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15.A negative interaction was obtained in ”the absorption ot
Kn and Zn. The opt1mwn levels ot Mnand Zn were about
121 ppm. tor Lfnand 84 ppm. for Zn.
J4n I Zn ratio of 1.44 seemsto be satisfactory for the
growth o’l peanut plants in this respeot.
l6.The”interact1ons ( plant density X micro - elements) were
not signifioant on all oharaoters studied.
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