This research was conducted in the Apple orchard belong to Department of Horticulture / Collage of Agriculture / University of Baghdad- Abu Ghraib during 2015, in order to investigate the response of four years old Apple trees (CV.Anna) budded on seeding root stock to foliar application with Brassinolide at four levels (0,2,4and 8)mg.g-1 and Algae extract (Tecamin) at four levels (0,2,4,6) ml.L-1 and their interaction between them in some vegetative and yield characters. Each treatment replicated three times with a factorial experiment using RCBD. The number of trees used was 27 trees. The results showed that treatment B3 was significantly increased in total chlorophyll content in leaves, shoot diameter, shoots length and shoot content of C:N Ratio.The treatment T3 gave a high value of shoot diameter and fruit size. While the interaction between the two factors (Brassinolide and Algae extract) B3T3 gave a high value of chlorophyll content in leaves, fruit weight mean, fruit diameter and fruit size (46.10 mg.g-1, 0.2733cm, 93.88gm, 5.387cm and 96.33cm3) respectively, while the interaction B3T1 gave a high a verge of fruit length was reached (5.587cm( while the treatment B3T2 gave a high content of Carbohydrates/Nitrogen Ratio reached to 10.52%.

Abstract

This study was carried out at nursery in Heet city (150 km western of Baghdad) from (1/4/2013) to (1/12/2013) the study was included of budding one year old apricot seedling by apricot scions cultivar Labeeb. to study the effect of budding date and scions soaking with growth regulators (BA and NAA) on success percentage of budding and vegetative growth characteristics. Scions soaking treatments were summarized as follows:(control , Treated by NAA at (50 mg .l-1, Treated by NAA at (100 mg .lP -1 P, Treated by BA at (250 mg .l-1, Treated by NAA at (50 mg .l-1) with BA at (250 mg .l-1 and Treated by NAA at (100 mg .l-1) with BA at (250 mg .l-1 Scions were soaking for 10 minutes and budded on three budding date 24/3/2013, 24/5/2013, and 24/6/2013. The research was done in factorial experiments in two factors (6x3) (treatments × dates) with randomized complete block design with ten replicates The results of experiment were summarized as follows : budding date gave significant effected on budding success percentage and all Studied characteristics were first budding date gave best results comparing with second and third budding dates. Higher budding success percentage were obtained with treatment of buds by(BA) at (250 mg / l-1)which gave (92.50, 86.43, 81.57) % as compared with control at the first, second and third budding dates respectively. The treatment (BA at 250 mg /l-1) and (NAA at250 mg / l-1 ) showed significant increasing in most vegetative studied characteristics in all budding dates as comparing with control.