Productivity of Grafted Tomato Grown in the Summer Season Under The New Valley Environmental Conditions | ||
| Assiut Journal of Agricultural Sciences | ||
| Article 15, Volume 45, Issue 2, June 2014, Pages 91-103 PDF (293.99 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ajas.2014.776 | ||
| Abstract | ||
| This study was carried out at the Experimental farm of the New Valley Agriculture Research Station (EL-Kharga Oasis), New Valley, Egypt, during summer season in 2012 and 2013. Four tomato cultivars ['Castle Rock' (CR), 'Strain-B' (SB), 'Super Marmande' (SM) and 'Peto-86' (P86)] were used to determine whether grafting could improve high temperature tolerance. The experiment included 20 treatments (12 treatments were cross-grafts and 4 treatments were self-grafts, in addition, to 4 intact plant treatments). Under the conditions of this study, intact plants of cvs 'SM’ and ‘P86’ did not survive and their rootstock also neither supported their own scion (self-grafts) nor the alien scions of cvs 'CR' and 'SB’ (cross-grafts). The remaining treatments showed that self-grafted plants were superior to their corresponding intact plants especially for early harvesting and total fruit yield. Cross-grafted plants surpassed their corresponding self-grafted plants in all studied traits. Out of the current study, it is advisable to grow the cross-graft 'CR' / 'SB' or 'SB' / 'CR' for production of tomato during the stressful climatic conditions of summer season in the New Valley. The estimated vigor for total fruit yield in these two cross-grafts, respectively, over their corresponding intact plants averaged 148.9 % and 136.2 %. | ||
| Keywords | ||
| crop improvement; Environmental stress; grafting; heat tolerance; Lycopersicon esculentum Mill | ||
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