GROWTH ASPECTS, YIELD AND RUSTS INFECTION FOR SOM WHEAT CULTIVARS (Triticum aestivum L.) AS AFFECTED BY SOWING DATES
El-Tabbakh,, S., Atteia, M. (2000). GROWTH ASPECTS, YIELD AND RUSTS INFECTION FOR SOM WHEAT CULTIVARS (Triticum aestivum L.) AS AFFECTED BY SOWING DATES. EKB Journal Management System, 25(8), 4835-4844. doi: 10.21608/jpp.2000.259544
S. Sh. El-Tabbakh,; Matilda F. Atteia. "GROWTH ASPECTS, YIELD AND RUSTS INFECTION FOR SOM WHEAT CULTIVARS (Triticum aestivum L.) AS AFFECTED BY SOWING DATES". EKB Journal Management System, 25, 8, 2000, 4835-4844. doi: 10.21608/jpp.2000.259544
El-Tabbakh,, S., Atteia, M. (2000). 'GROWTH ASPECTS, YIELD AND RUSTS INFECTION FOR SOM WHEAT CULTIVARS (Triticum aestivum L.) AS AFFECTED BY SOWING DATES', EKB Journal Management System, 25(8), pp. 4835-4844. doi: 10.21608/jpp.2000.259544
El-Tabbakh,, S., Atteia, M. GROWTH ASPECTS, YIELD AND RUSTS INFECTION FOR SOM WHEAT CULTIVARS (Triticum aestivum L.) AS AFFECTED BY SOWING DATES. EKB Journal Management System, 2000; 25(8): 4835-4844. doi: 10.21608/jpp.2000.259544

GROWTH ASPECTS, YIELD AND RUSTS INFECTION FOR SOM WHEAT CULTIVARS (Triticum aestivum L.) AS AFFECTED BY SOWING DATES

Journal of Plant Production
Article 4, Volume 25, Issue 8, August 2000, Page 4835-4844  XML PDF (618.55 K)
Document Type: Original Article
DOI: 10.21608/jpp.2000.259544
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Authors
S. Sh. El-Tabbakh,1; Matilda F. Atteia2
1Crop Sci. Dept., Faculty of Agric., Alex. University.
2A.R.C. Plant Path. Res. Inst., Plant Protection and Isolation, Res. Stat., Sabahia, Alex., Egypt.
Abstract
A two-year field experiment (1997 and 1998) was carried out to study rusts infection and growth aspects for wheat cultivars (Giza 157 and 161, Gemmiza 1 and Sakha 8 and 69) as affected by sowing dates (5 and 20 November in addition to 5 December). Sowing date resulted in significant effects for all studied characters, except for leaf rust, in 1997, spike length and number of grains / spike over the two seasons.
Rusts infection had the lowest records with the earlier sowing date (5/11) in both seasons. The intermediate date of sowing (20/11) exhibited the highest grain yield/ha., number of spikes m-2 and 100-kernel weight (averaged out 0.14 and 0.44g compared to early and late sowing, respectively).
Differences among cultivars were significant for all studied characters, except for 100-kernel weight. Giza 161 cv. highly responded  to rusts (29.52 and 51.82% for leaf and stem rusts, respectively) and produced the lowest grain yield/ha (4.47 t). Gemmiza 1 was exposed to lesser leaf and moderate stem rusts infection (5.1 and 19.2% for leaf and stem rusts, respectively as averages of both seasons) and gave the maximum records for spike length and number of grains/spike. Sakha 8 suprassed all cultivars in grain yield/ha. (7.29 t) and number of spikes m-2 (408.74) as averages of both seasons.
Sowing date x cultivar interaction was significant for leaf rust (in 1998) and stem rust in addition to grain yield/ha. over the two seasons. Giza 161 was highly reacted to leaf (58.33%) and stem (64.54%) rusts for early sowing dates, respectively. On the other hand, Sakha 8 produced the highest grain yield (7.93 t/ha.) with the intermediate (20/11) sowing date.
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