استجابة شتلات البرتقال المحلي Citrus sinensis (L.)‎ لمواعيد التطعيم والرش بالسماد الورقي (اليروسول)‎ في نسبة نجاح التطعيم و صفات النمو الخضري

الملخص EN

The present study was carried out in lath House /Horticultural Department /College of Agriculture / Tikrit university during 2008-2009 season.

The aim was to study five budding dates (16/7, 6/8, 26 / 8, 16 / 9, 16 / 10)on sour orange root stock and foliar nutrition (Brossol)(Zero,2 gm/L.Brossol / month) on sweet orange to know the effect on percentage of budding success and all studied vegetative characteristics..The treatments were factarially combing randomized complete block design (R.C.B.D.) replicated four times.

The results could be summarized as follow: Budding date shows significant effect on the percentage of budding success.

The budding time 26/8 significantly increased budding success percentage (% 80.00) vegetative length growth, number lateral branches, dimeter scion, grith dimeter root stock (grith)and gave nonsignificant increased in leaves number (100.99 cm.

/ plant), 4.65 branch / plant, 12.05 mm.

/plant, 14.99 mm.

/ plant, 94.80 leaf/ plant.The Nutrition solution effect non significant and increased in stem length, shoot length scion, and effect significant increased in leaves number and root stock grith.

% 87.35 cm./plant, 3.99 branch / plant, 9.83 mm.

/ plant,94.20leaf/ plant and 13.29 mm./ plant.The treatment interaction shows as significant effect where budding date.

Nutrition solution on all the vegetative characteristics studied.

stem length107.52cm / plant, branch length 5.15 branch / plant, leaves number 122.54 leaf / plant, scion grith 12.70 mm.and root stock grith 15.60 mm.