Through PCR technique resistant genes to Tristeza were detected. Rootstock 030119 would be resistant.
There are two ferrous chlorosis performed on this rootstock.
For 3 months plants were watered with Fe or without Fe. At the end root activity FC-R was determined. 030119showed an activity of 1.499 nmoles Fe2+/g h. Sensitive vàlues of standar trees are around 0.648 and resistance 2.078.
Fe foliar content is not done yet.
Plants presented suffocation resistance.
Medium harvesting per tree 43.59 kg and productive efficiency 9.83 km/m3.
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