000 02978cab a2200313Ia 45 0
001 u200977
003 SIRSI
008 100419s2006 ua ss b eng d
040 _aEAL
041 _aeng
_bara
090 _aART JART V32 No2 15
100 1 _aYoussef, Asmhan E.
240 1 0 _aJournal of agricultural research Tanta University, 2006 v.32 (2)
_h[electronic resource].
245 1 0 _aSusceptibility of certain rice varieties to infestation, with the rice stem borer, Chilo agammemnon Bles
_h[electronic resource].
246 1 5 _aتقييم حساسية بعض اصناف الارز للاصابة بثاقبة ساق الارز (دودة القصب الصغيرة Chilo agammemnon Bles).
300 _ap.425-443.
504 _aIncludes reference.
520 _aThis study was conducted at the experimental farm of Rice Research & Training Center. Economic Entomology Dept., and Soil Science Dept .• Kafr EI-Sheikh Fac. of Agric .• Tanta University during two successive seasons; 2003 and 2004. Susceptibility to infestation with the rice stem borer Chilo agamemnon Bles. of the three hybrid rice genotypes and Salcha 101 rice variety indicated that Sakha 101 was the least susceptible (1.000.10 damage). On the other hand, the most susceptible rice hybrid was SK 2025H 11.1 S% damage. it received more eggs than Sakha 101 cultivator. Fertilized rice plants with high levels (80 unit) of nitrogen had higher infestation than that manured with the lower (40 or 60 wits) levels. However. to minimize insecticide applications in rice fields and meanwhile to obtain satisfactory rice yield, it is recommended to use 6 kg carbofuran I fed. The relationship between morphological characters and infestation was studied.. Significant positive correlations were found between rice stem borer infestation and each offlag leaflength, flag leaf width and plant height. By contrast, significant negative correlations were found between the infestation and heavy tillering. In the present work, the relationships between some chemical components and damage caused by Chilo agamemnon were studies. The high values of infestation were detected in rice varieties having low silica contents and By contrast, varieties suffering low infestation had the highest silica content. Zinc content of rice stem had also negative effects on rice stem borer damage. In the current study. iron negatively correlated with percentage of infested stems. By contrast. potassium, pH, phosphorus. manganese positively correlated with the infested stems.
546 _aSummary in Arabic.
650 0 _aRice
_xDiseases and pests.
650 0 _aRice
_xInsect pests
_xControl.
650 0 _aRice
_xVarieties.
653 _achilo agamemnon
700 1 _aEssawy, M.
700 1 _aAssas, M.
773 0 _tJournal of Agricultural Research Tanta Univeristy.
_g2006.v.32(2)
_x1110-032X
_7nnas
_wu200869
856 4 0 _uhttp://nile.enal.sci.eg/EALE/2006/JART/3206/2/425.pdf
_zFull Text Artical
596 _a1
942 _cAR
_2lcc
999 _c53323
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