الفهرس 
Materials and mithodsOnly 14 pages are availabe for public view
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Abstract
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SUMMARY
Two field experiments were carried out during 1987/88 and
198’6/89 seasons at the Agricultural Research and Experimental Station,
Faculty of Agriculture, Moshtohor, Kalubia Governorate. The ann of
this study was to investigate the effect of GA3’ IAA, Fe and Mn on
growth and yield of field bean plant.
The soil type of the experiments was clay loamy alluvial
w ittl a pH 7.85, organic matter content of 2.50 %, available Fe 7.70
ppm and available Mn 8.45 ppm.
Each experiment included 25 treatments which were the combination
of five treatments of growth regulators and five micro-nutrients
trea t ments.
I. Growth regulators treatments:
a. Control (spraying with water).
b. 75 ppm GA
3
as foliar application.
c. 75 ppm lAA as foliar application.
d. 150 ppm GA
3
as foliar application.
e. 150 ppm IAA as foliar application.
u. Micro-nutrients treatments:
a. Control (spraying with water).
b. 0.025 % FE-EDTA as foliar application.
Co 0.025 9’0 % Mn-EDTA as foliar application.
d. 0.050 % Fe-EDT A as foliar application.
e. 0.050 90 Mn-EDTA as foliar application.
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The design of the experiments was randomized complete
21
2 I Iron
block with four replications. The plot size was In (200 Fed.).
and Mn were added after 55 days from planting, whereas, GA3
and
IAA added after 75 days from planting. The spray volume was 400
L./fed. (2.0 L./plot).
Results could be summarized as follows :
I. Foliar application of GA
3
or IAA increased significantly
plant height of field bean plants in the two successive seasons. The
second concentration of GA
3
or IAA (150 ppm) was more effective
than the first concentration (75 ppm).
On the other hand, foliar application of Fe-EDT A or Mn-EDT A
had no significant effect on plant height in the both seasons.
The eUect of the interaction between growth regulators
and micro-nutrients on plant height of field bean plants was not significant
in the two seasons.
2. The effect of GA
3
or IAA on the number of branches/plant
showed seasonal variations. Foliar application of GA3 or IAA at first
concentration (75 ppm) significantly increased the number of branches/
plant compared with control plants. Increasing concentration of GA3
or IAA up to 150 ppm significantly decreased the number of branches/
plant as compared with 75 ppm GA3 or [AA in the first season only.
Foliar application of Fe-EDT A or Mn-EDTA significantly
increased the number of branches/plant in the two successive sec-sons.
Number of branches/plant increased gradually with increasing concentration
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of Fe or Mn up to 0.05 %.
Number 01 branches/plant was not significantly allected with
the interaction effect in the two seasons.
3. Foliar application 01 GA3 or IAA witb 75 ppm or ISO
ppm signilicantly increased number of pods/plant compared witb contrOl
treatment in the two successive sea!>,)ns.
foliar application of Fe or Mn had a signilicant ellect on
number of pods/plant in the twO successive seasons. The number of
pods/plnat signllicantly increased with increasing Fe-EDT A or Mn-EDTA
up to 0.0 5 % and 0.025 % in the lir stand second seasons, respect iye Iy.
The eHec
t
01 the interaction on number 01 pods/plant was
not significant in both seasons.
4. Growth regulators, i.e., GA3 and lAA had no ellect on
number of seeds/pod of field bean plant in the two seasons.
Fohar application 01 Fe or Mn did not show any signilicant
effect on number of seeds/pod in the two successive seasons.
The elle
ct
of tbe interaction between growth regulators
and micro-nutrients on the number 01 seeds/pod was not significant
in the both seasons.
5. Weigbt of pod was not signilicantly alleeted by loliar
application of L./\3 or lAA in the two successive seasons.
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increased with increasing concentration of GA3 or lAA up to 150 ppm
In the first season. Whereas, foliar aplication of 150 ppm GA3 produced
ilu- higill’~t siruw yield/kd. Un lhe other nand, yield of SITiJW/led.
significantly decreased due to foliar application of 150 ppm IAA compared
with the second concentration of GA3 (150 ppm).
Foliar application of micro-nutrients had no significant effect
on the straw yield in the two successive seasons.
The effect of the interaction on the straw yield/fed. was
not significant in the two seasons.
11. Biological yield/fed. significantly increased by increasing
the concentrations of GA
3
or IAA up to 150 ppm In the two successive
seasons. The second concentration (150 ppm) was more effective in
this respect than the first concentration (75 ppm).
The effect of foliar application of Fe or Mn on the biological
yield/fed. showed seasonal variation. Biological yield/fed. increased
due to foliar application of Fe or Mn in the second season only. Foliar
application of Mn was better than Fe and control treatments.
The cfIort of the intcruction between growth reguliJtors
and micro-nutrients on the biological yield/fed. was not significant
in the both seasons.
12. Foliar application of 150 ppm IAA significantly increased
harvest index (H.I.) compared with other treatments in one season
only.
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Foliar application of Fe or Mn had significant effect on H.I.
of field bean in the two successive seasons. The second concentration
of Fe or Mn (0.05 %) was more ef.fective than the first concentration
(0.025 %) in this respect.
The effect of the interaction was not significant on H.I.
In the both seasons.
13. Chemical content of field bean seeds, namely, N, P, K, Fe
and Mn were not significantly affected with foliar application of growth
regulators, micro-nutrients and the interaction effect.
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