الفهرس 
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Abstract
(80)
Two field experiments were conducted at the Agricultural Research
and Experimental Center, Faculty of agriculture at Moshtohor, Kalubia,
Egypt. The aim of this study was to investigate the effect of seeding rates
and weed control treatments on weed growth, yield and yield components
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of fenugreek. Giza 30 variety was sown in the two successive seasons,
1991/92 and 1992/93.
Each experiment included 28 treabnents which Were the combination
of 4 seeding rates and 7 weed control treatments.
Factors under study were :
(1) Seeding rates; 30, 40,50, and 60 kg seed/fad.
(2) Weed control treatments; sencor at 0.12 kg/fad., topogard at lDkg/fad;
”
igran at 1.Okglfad., stomp at 1.5 L.lfad., basagran at O.5Ufad., hand
weeding (once) and unweeded check. The design was a split plot with
4 replications. Seeding rate treatments were arranged at random in the
main plots, whereas the weed control treatment were randomly
distributed in the sub-plots. Results could be swmnatized as follows :
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(I) Effect of seeding rates on weed growth:
1) the fresh weight of weeds/m2 significantly decreased with increasing
seeding tate treatments after 90, 120 days from sowing and at
harvesting time. The lowest values were obtained by highest seeding
rate (60kg/fad.) in both growing seasons.
2) Dry weight of broad leaved, grasses, perennial and total weeds.
significantly depressed by increasing seeding rate from 30 to 60 kg/fad.
These results are true after 90, 120 days from sowing and at harvesting
time in the two successive seasons.
(II) Effect of weed control treatment on weed growth:
1) All weed control treatments significantly reduced the fresh weight of
total weeds after 90 days from sowing in the second season,
2) All applied herbicides as well as band weeding significantly decreased -. tiah wei&Iatof brmd lened in tile tint season.and total weeds in the
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5) The most of weed control treatments significantly reduced dry weight of
weedsfm2 after 90, 120 days from sowing and at harvesting date.
6) The superiority of herbicides in controlling fenugreek weeds could be
attributed to the high efficiency, stomp at 1.5 L., igran at l Dkg,
topogard at 1.0 kg, sencro at 0.12 kg and basagran at rate of O.5L.lfad.
7) The efficiency of hand weeding (once )treatment in controlling weeds
was highest in first and second samples than in last sample.
(III) Effect of the interaction on weed growth:
1) The interaction of seeding rates and weed control treatments was
significantly on fresh and dry weight of broad leaved weeds and fresh
and dry weight of total weeds in the first season only.
2) Increasing seeding rate of fenugreek significantly reduced fresh and dry
weight of total weeds with igran, stomp, basagran, hand weed and
unweeded treatments.
3) Igran treatment significantly decreased fresh and dry weight of broad
leaved weeds by increasing seeding rate to 50 or 60 kg/fad.
(IV) Effect of seeding rates on yield and yield components :
1) Seeding rate treabnents had no significance effect on plant height.
2) Number of branches/plant decreased by increasing seeding rate on one
season only.
3) The highest number of podsIplant and number of seedslplant obtained by
using lowest seeding rate (30 kg/fad.).
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4) Number of seeds/pod and seed index did not significantly affected by
seeding rate treatments.
5) The treatment with 50 kg seeds/fad. gave the lowest aborted seed
percentage.
6) The lowest seeding rate resulted the highest seed yield/plant.
7) The highest seed yield/fad. was obtained by using 50kglfad. and
produced treble yield as compared with the lowest seeding rate.
8) Straw yield/fad. and biological yield/fad. increased with increasing
seeding rate up to 50 kg in the first season and up to 60 kg/fad. in the
,
second season.
9) Harvest index did not affect by different seeding rate treatments.
(V) Effect of weed control treatments on yield and yield
components .:
1) Plant height was significantly affected by weed control treatments.
2) The treatments with topogard, igran and stomp significantly increased
the number of branches/plant in both growing seasons.
3) Weed control treatments had no effect on number of seeds/pod,
percentage of aborted seeds and weight of 1GOO-seedin both seasons.
4) Stomp and topogard treatments exceeded all other weed control
treatments and produced the higher number of seeds/pod and
. significantly higher than control treatment.
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5) The treatments with stomp in both seasons and topogard in the second
season significantly in~~~ased seed yield/plant as compared with
unweeded and basagran treatments.
6) All weed control treatments significantly increased seed yield/fad. over
unweeded check in the both seasons.
7) Stomp treatment gave significantly the highest seed yield/fad. and out
yielded all weed control treatments in the two successive seasons.
8) The treatments with stomp, basagran and hand weeding significantly
increased straw yield/fad. in both growing seasons as compared with
control treatment.
. 9) Topogard and igran treatments significantly reduced straw yield/fad in
both seasons as compared with unweeded check.
10) Stomp herbicide remarkable resulted the highest biological yield and
significantly higher over all weed control treatments either hand
weeding or chemical herbicides.
11) The treatment with igran at rate of 1.0 kg/fad. resulted the lowest seed,
straw and biological yield as compared with other weed control
treatments.
12) All weed control treatments significantly increased harvest index.
(VI) Effect of tbe interaction on yield and yield components :
1) the interaction of seeding rate and weed control treatments was
significantly on seed yield and biological yield/fad. in both successive
seasons, straw yield/fad. and harvest index in one season only.
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2) the treatment with stomp and 50 kg seeds/fad. exceeded seed yield/fad.
and significantly higher as compared with other treatments.
3) Increasing seeding rate up 50 kg/fad. resulted in a significant increase in
seed yield/fad. to different extents with all weed control treatments in
the both growing seasons.
4) Increasing seeding rate up to 50 kg/fad resulted in a significant increase
in straw yield/fad. with all weed control treatments.
5) the highest straw yield/fad. was recorded by stomp treatment with 50 kg
seeds/fad. and stomp + 60 kg/fad. and significantly exceeded all other
treatments.
6) The highest biological yield was resulted by stomp treatment with 50,60
and 40 kg/seeds/fad., Basagran treatment and hand weeding treatment
with 50 kg seeds per faddan.
7) The highest harvest index values were resulted from basagran treatment
,
with all seeding rates. Whereas, the lowest values were obtairied from
unweed and sencor treatment with different seeding rates.