کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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4492999 | 1623303 | 2013 | 6 صفحه PDF | دانلود رایگان |
Two field experiments were conducted at Giza Agric. Res. Station, Agric. Res. Centre during the two seasons of 2009/2010 and 2010/2011. The study aimed to investigate the productivity of four bread wheat cultivars, namely Giza-168, Sakha-94, Gemmeiza-10, and Sids-12 under different nitrogen levels i.e. 0, 25, 50, 75, 100, and 125 kg N/fad. The strip-plot design in three replicates was used. The obtained results showed significant differences among the tested wheat cultivars in the two seasons for number of spikes/m2, spike length, kernels number/spike, kernels weight/spike, weight of 1000 kernels, and grain and straw yields/fad. Gemmeiza-10 along with Sids-12 produced the highest weight of 1000 kernels surpassing the other cultivars in the second season only. Gemmeiaza-10 was the superior cultivar for producing higher grain yield, but statistically leveled with Sakha-94 in the 1st season and with Sids-12 in the 2nd one. Moreover, straw yield of Giza-168 was higher than each of other cultivars in the 1st season, while Gemmeiza-10 along with Sids-12 gave the maximum straw yield in the 2nd season. Increasing N up to 75 kg/fad increased yield and its attributes of wheat in both growing seasons. All yield attributes significantly influenced by the interaction between wheat cultivars and N levels in both growing seasons, except kernels number/spike in the 1st season and spike length in the 2nd one. The maximum agronomic efficiency (AE) was recorded with Gemmeiza-10 and with application of 50 kg N/fad. Grain yield response index showed that each of Giza-168 in 2009/2010 and Sids-12 in 2010/2011 was belonging to efficient-responsive group.
Journal: Annals of Agricultural Sciences - Volume 58, Issue 2, December 2013, Pages 147–152