تأثير نوع الأصل و الرش بالأرجنين في بعض صفات النمو الكيميائية لنوعين من الحمضيات

الملخص EN

The study was carried out at research station affiliated to College of Agriculture, University of Diyala for the period from 19/12/2014 to 15/6/2016 to study the effect of arginine spraying and rootstocks difference on some shoot growth for four citrus cultivars.

A Randomized Complete Block design (RCBD) in a factorial experiment was used with three factors, namely: Arginine levels (0 and 250 mg L-1), Citrus rootstocks (Sour orange, Volkameriana lemon and Troyer citrange), and Citrus species (Navel orange, local orange, common mandarin and Clementine mandarin) in three replications.

Results were analyzed according to SAS and differences between the means compared using Duncan's test at 0.05 probability level.

Results showed that navel orange was superior in total leaves chlorophyll content and arginine.

Navel orange grafted on Volkameriana lemon rootstock was superior in leaves content of P, K and arginine.

Spraying with arginine was superior in leaves content of arginine, while triple interference was superior in leaves content of P, arginine and K, while Volkameriana lemon rootstock was superior in leaves content of p and total chlorophyll.

Spraying with arginine increased leaves content of P, k and total chlorophyll.

Common orange grafted on Troyer Citrange was the superior in leaves content of total chlorophyll after spraying with arginine and at triple interaction.

Common mandarin grafted on Volkameriana lemon rootstock gave the highest content of P.

Volkameriana lemon rootstock treated with arginine was superior in leaves content of P and Arginine