الفهرس 
Planting methodOnly 14 pages are availabe for public view
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Abstract
Thee series of experiments were conducted on a clay soil at the
Experimental Station Fann of the Faculty of Agriculture, Tanta University at
Kafr El-Sheild~, during 25” and 20’’ of May 1993 and 1994 seasons,
respectively to evaluate different rice planting inethods and plant density or
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seeding rate on the short duration cultivar Giza 177 compared with the
traditional cultivar Giza 176 as follow :
I- Evaluation of planting methods on two rice cluiltivars :
The planting methods used were traditional transplanting (TT), hand
transplanting (HT) in hills 20 x 20 cm (HT 20 x 20 cm), HT 15 x 15 cm,
mecl~anical transplanting (MT) in hills 30 x 14 cin (MT 30 x 14 cm) , MT 30 x
i
12 cm, broadcasting (B), ineclianical drilling (MD), dippliiig 111 ldls 20 x 20
cm (D 20 x 20 cm) and D 15 x 15 cm.
The experimental design was split-plot design with four replications
was used. The main plots were assigned to planting inethods and the sib-plot
to cultivars. Samples of rice plants were taken at 58 and 72 days after planting
and at harvest for growth characters determination. The results obtained can be
suinmarized as follows :
E.A. Growth :
JL.A.1. Dry matter accumulation :
Plants of D 15 x 15 cm accuulated the greatest dry matter (dm2),
while those of TT acciun~zlated the lowest dry matter at 58 and 72 days
after planting in both seasons. Plants of HT 15 x 1’5 cin and D 15 x 15 cm
did not differ practically in their capacity to accilinulation dry matter per
unit area at the first sample in the two seasons and at the second sample in
the first season. The short duration cultivar ”Giza 177” produced more &y
matter acc~unulation (g/m2) than the cultivar ”Giza 1 7 6” at two sampling
dates 111 both seasons with significant difference in only 1993 season, The
interaction between planting methods and cultivar had a significant effect
011 this trait at 72 days after planting in only 1993 season.
ll.A.2. Leaf area index (LAI) :
Plants of D 15 x 15 cin produced significantly the largest LAI
compared with those of TT, HT 20 x 20 cm, MD and B methods at the two
sampling dates 111 both season, except at 58 days afier planting in 1993
season. Giza 177 cultivar significantly exceeded Giza 176 one in LA1 at
the two sampling dates in only 1994 season. No significant interaction was
fo~mda t 58 and 72 days after planting in both seasobs.
I.A.3. Crop growth rate (CGR):
Plants ofD 15 x 15 cm or HT 15 x 15 cm, MT 30 x 12 cm and D 20
x 20 cin were practically the same in their CGR and significantly surpassed
those of traditional transplanting in both seasons. The rest of planting
metl~ods did not differ •’?om traditional transplanting in tlGs respect Neither
cultivars nor the interaction was significantly affected CGR.
I.A.4. Relative growth rate (RGR):
Relative growth rate were significantly influenced by planting
methods in favor of plants for TT, HT 20 x 20 cm and B compared wit11
those for D 15 x 15 cm in the first season. The same trend was fouuld in the
second season, but the differences did not reach the level of significance.
RCR was not significantly affected by either cultivar or the interaction.