RESPONSE OF TWO MAIZE (Zea mays L.) GENOTYPES FOR SOME WATER STRESS AND NITROGEN FERTILIZATION TREATMENTS

Document Type : Research articles.

Authors

Argon. Dept. Fac. Agric., Fayoum Univ.

Abstract

Two field experiments were conducted during 2006 and 2007
successive seasons at the experimental Farm of Fayoum Fac. of Agric.,
to quantify the single and combined effects of different irrigation
intervals (10, 15 and 20 days) and rates of nitrogen fertilization (100,120
and 140 kg N/fed.) on growth, yield and yield components of two maize
genotypes, i.e.(single- cross 10) and (three way cross 310). The results
indicated that S.C.10 gave the highest values of most studied characters,
especially plant height,100 grain weight and grain yield (kg/fed.) where
the values were 245 (cm), 35.97 (g) and 2475.37 (kg), respectively.
Application of 10 days (I1) significantly increased plant height, ear
length ear diameter, 100-grain weight and grain yield/feddan. Using the
rate of 140 kg N /fed.(N3) significantly increased plant height, leaf area,
number of rows /ear, number of grain,100-grain weight and grain
yield/feddan by values of 262 (cm), 2678 (cm2), 13.30 (row), 44.64
(grain), 37.53 (g) and 2565.17(kg) surpassing 100 (N1) and 120 kg
N/fed. (N2).The results also indicated that planting S.C.10 and T.W.C.
310 under 10 day (I1) gave the lowest number of days to 50% tasseling
and silking traits.

Keywords

Fayoum Journal of Agricultural Research and Development
Volume 23, Issue 1
January 2009
Pages 45-53

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