العنوان باللغة الأجنبية:
The Influence of Grafting Technique onto Resistant Rootstocks on The Yield, Growth, and Fruit Components of Scions in Some Tomato Varieties Grown in A Plastic House
لمحة عن المقال باللغة الأجنبية:
This study was carried out in the General Commission for Scientific Agricultural Research (GCSAR) in Damascus (grafting, healing and acclimatization processes of tomato plants), at the Jemaseh Station of the Scientific Agricultural Research Center in Tartous governorate, and in the farmer field of Al-Khrab region (Banias countryside) during 2003 – 2005. The study aimed to demonstrate the influence of some biotic stress- resistant tomato rootstocks (Eldorado, He-man, Vigomax, and Beaufort) caused by root-knot nematodes and corky root disease under natural infection conditions in plastic house in addition to the susceptible local (wild) tomato rootstock on the yield, growth, and fruit components of some tomato cultivars (Gironda, Dima/Stella, Amal, and local Landrace) grafted onto it, in comparison with the same non-grafted cultivars. Results showed that four rootstocks Eldorado, He-man, Vigomax and Beaufort, had positively influenced the fruit yield and growth of grafted plants with different levels. The increasing rates of fruit yield for rootstocks grafted with tested varieties were 22.2, 18.5, 33.3, and 24.4%, respectively; meanwhile, they were 7.5, 11.8, 2.1, and 5.6%, respectively, for the average length of grafted plants. The investigated rootstocks had not significantly affected the tomato fruit components of grafted plants compared with the non-grafted ones, with the exception of saccharides, as it was the most variable component.