EFFECT OF FOLIAR APPLICATION OF UREA ON, YIELD AND SEED QUALITY OF SOME RICE VARIETIES GROWN IN SALINITY SOILS. | ||||
| Journal of Soil Sciences and Agricultural Engineering | ||||
| Article 13, Volume 28, Issue 10, October 2003, Page 7571-7580 PDF (2.7 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jssae.2003.245515 | ||||
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| Author | ||||
| M. A. Abd EI-Razik, | ||||
| Seed Tech. Res. Dept., Field Crops Res. Inst., A. R. C., Giza, Egypt | ||||
| Abstract | ||||
| Two field experiments were carried out in salinity soils at Tag EI-Eiz, Agricultural Research Station, Dakahlia Governorate, Egypt, during the two successive growing seasons 2000 and 2001. This investigation aimed to study the effect of time of foliar application of urea 20% (at panicle, at panicle+1 0 days and at panicle+ 20 days) on yield and seed quality of some rice varieties (Giza 177, Giza178 and Sakha 101) in salinity soils conditions. The results indicated that rice variety Giza 178 gave the highest value of panicle length, no. of panlcles/m'', panicle weight, no. and weight of grains/panicle, germination percentage and plumule length(cm) in the first season and no. of panicles/rrr', no. of grains/panicle, grain yield and germination percentage in the second season. While Sakha 101 gave the highest value of 1000- grain weight, grain yield, protein percentage, root length and seedling dry weight in the first season and plant height, panicle length and weight, grain weighUpanicle, 1000-grain weight, straw yield, germination percentage, plumule length and seedling dry weight in the second season. On the other hand, Giza 177 gave the lowest value in all characters except carbohydrate percentage and seedling dry weight in the first season and carbohydrate percentage and plumule length in the second one. Foliar application of urea at panicle gave the highest value of grain yield, germination percentage and seedling dry weight in both seasons. The interaction between rice varieties x application time of urea spraying 20 % was not significant in all characters except of grain weighUpanicle, straw yield and carbohydrate percentage in the first season. | ||||
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