Search results for " Vigour"

showing 6 items of 6 documents

Solanum aethiopicum gr. gilo and Its Interspecific Hybrid with S. melongena as Alternative Rootstocks for Eggplant: Effects on Vigor, Yield, and Frui…

2019

Grafting is generally considered effective in ameliorating vegetable crop tolerance to biotic and abiotic stresses. The use of interspecific hybrid as rootstock for eggplant may represent a valid alternative approach to enhance eggplant performance. However, studies on the effects of different rootstocks on eggplant plant vigor, yield, and fruit quality traits often show conflicting results. Thus, an experiment was performed in two spring&ndash

0106 biological sciencesMelongenaVegetative reproductioninterspecific hybridfruit quality attributesSettore AGR/04 - Orticoltura E Floricoltura01 natural sciencesCroplcsh:AgricultureCultivarHybridbiologyCrop yieldlcsh:Sscion/rootstock combination04 agricultural and veterinary sciencesbiology.organism_classificationyieldwild eggplant relativeHorticultureplant vigour040103 agronomy & agriculture0401 agriculture forestry and fisheriesSolanumRootstockAgronomy and Crop Science010606 plant biology & botany
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Hydraulic kinetics of the graft union in different Olea europaea L. scion/rootstock combinations

2007

The hydraulic resistance of young olive trees grafted on rootstocks with contrasting size-controlling potential was measured 30, 90, 360 and 480 days after grafting. Olive (Olea europaea L.) clones inducing plant vigorous growth (Leccino ‘Minerva’, LM) or dwarfing (Leccino ‘Dwarf’, LD) were studied in different scion/rootstock combinations (LD/LD, LD/LM, LM/LD, LM/LM). Plants growing on LD root systems developed lower leaf surface areas (about 50% less) than plants grafted on LM rootstocks. Graft union represented the largest fraction (up to 85%) of whole-plant hydraulic resistance 30 days after grafting, and still represented an important fraction of it 2 months later (40–55%). Four-hundre…

ScionbiologyThe hydraulic resistance of young olive trees grafted on rootstocks with contrasting size-controlling potential was measured 30 90 360 and 480 days after grafting. Olive (Olea europaea L.) clones inducing plant vigorous growth (Leccino ‘Minerva’ LM) or dwarfing (Leccino ‘Dwarf’ LD) were studied in different scion/rootstock combinations (LD/LD LD/LM LM/LD LM/LM). Plants growing on LD root systems developed lower leaf surface areas (about 50% less) than plants grafted on LM rootstocks. Graft union represented the largest fraction (up to 85%) of whole-plant hydraulic resistance 30 days after grafting and still represented an important fraction of it 2 months later (40–55%). Four-hundred and eighty days after grafting the hydraulic resistance of the graft union became negligible (<3%) with no difference among the different scion/rootstock combinations. Our data reinforce the idea of graft hydraulics not playing a role in depressing the vigour of the scion as observable in adult plants grafted onto dwarfing rootstocks. The long time required for the vascularisation to be complete on the contrary represents the main risk for successful olive breeding.food and beveragesOlea europaea LGraft hydraulic resistanceDwarfingPlant ScienceRoot systemHPFMHydraulic resistancebiology.organism_classificationGraftingDwarfingOlive treesHorticultureOleaOleaceaeBotanyGraft hydraulic resistance; Olea europaea L.; Dwarfing; Scion; Rootstock; HPFMRootstockRootstockAgronomy and Crop ScienceEcology Evolution Behavior and Systematics
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The effect of different vigour olive clones on growth, dry matter partitioning and gas exchange under water deficit

2012

Abstract In the last decade, high-density olive planting systems have been developed to facilitate less costly mechanical harvesting and pruning by using straddle harvesters. High-density orchards allow faster production since the first crop of fruit starts a few years after planting. In high-density orchards the control of tree size is essential. It is possible to control the vigour and size of the tree by selecting suitable cultivars, by choosing rootstocks capable of controlling scion vigour and, finally, by applying deficit irrigation to reduce plant vegetative growth. Knowledge of tree water requirements is needed for precise irrigation scheduling. In this study, the dwarfing capacity …

Stomatal conductanceVegetative reproductionDeficit irrigationIrrigation schedulingfood and beveragesHorticultureBiologyDwarfingSettore AGR/03 - Arboricoltura Generale E Coltivazioni ArboreeHorticultureAgronomyOlea europaea L. Vigour Rootstock Water deficit Gas exchangeCultivarRootstockPruningScientia Horticulturae
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Canopy Architecture Appraisal by Fractal Dimension of 'Flordastar' Peach Trees Grafted onto Different Rootstocks

2007

The objective of this research was to evaluate the modification of canopy architecture of ''Flordastar'' peach (Prunus persica L. Batsch) grafted onto rootstocks with different vigour, by the use of fractal dimension (D). The hypothesis was that different vigour rootstocks are able to modify the complexity of the branching pattern and that this effect can be assessed by a geometric parameter such as the fractal dimension (D) of the 2D projection of tree branching structure. The observations were carried out in a four-year-old experimental orchard of cv. ''Flordastar'' peach trees grafted onto Ishtara, Barrier, GF677 and MrS 2/5 rootstocks. On digital pictures of leafless, dormant peach tree…

The objective of this research was to evaluate the modification of canopy architecture of ''Flordastar'' peach (Prunus persica L. Batsch) grafted onto rootstocks with different vigour by the use of fractal dimension (D). The hypothesis was that different vigour rootstocks are able to modify the complexity of the branching pattern and that this effect can be assessed by a geometric parameter such as the fractal dimension (D) of the 2D projection of tree branching structure. The observations were carried out in a four-year-old experimental orchard of cv. ''Flordastar'' peach trees grafted onto Ishtara Barrier GF677 and MrS 2/5 rootstocks. On digital pictures of leafless dormant peach trees the tree skeleton was manually depicted by an image analysis software to measure total length and angles of insertion of branches. Bitmaps of the skeleton were then subjected to a specific software (FDCALC) able to calculate D by the "box counting" method. To account for the error introduced by analyzing a three dimensional structure with its 2D projection measurements were done on two images per tree taken from two different viewing angles. Results are shown in relation to tree vigour of the scion/stock combination. Fractal dimension was related to the vigour ranking of the graft combinations tested. In particular vigorous scion/stock combinations showed the highest D.HorticultureCanopy architectureHorticultureRootstockFractal dimensionMathematics
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Effects of traditional and light pruning on viticultural and oenological performance of bobal and tempranillo vineyards

2015

&lt;p style="text-align: justify;"&gt;&lt;strong&gt;Aim&lt;/strong&gt;: Light pruning may improve vine yield and quality although vineyard responses are variable. We assessed the effects of traditional manual pruning and mechanical light pruning on the viticultural and oenological performance of &lt;em&gt;Vitis vinifera &lt;/em&gt;cv. Bobal and cv. Tempranillo.&lt;/p&gt;&lt;p style="text-align: justify;"&gt;&lt;strong&gt;Methods and results&lt;/strong&gt;: During 2008-2011, Bobal and Tempranillo vineyards underwent traditional pruning or light pruning. The effects of both pruning techniques were determined in vine vigour and yield, and grape and wine characteristics. Both cultivars responde…

WineVinelcsh:SmicrovinificationBerryHorticultureRipenessVineyardlcsh:QK1-989lcsh:Agriculturegrape and wine qualityHorticulturegrapevine yieldlcsh:BotanyYield (wine)BotanyCultivarvine vigourPruninglight pruningFood ScienceMathematics
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Rootstock Evaluation for European and Japanese Plums in Italy

2012

The continuous update coming from fruit trees genetic improving projects determines constant innovations in terms of cultivars and rootstocks availability. In Italy, since 1995, the National Government has developed a research activity spread over the entire National territory. The project, which involves several Research Units, is related to all major fruit tree species and also plum regarding new Japanese and European cultivars as well as new rootstocks. The evaluation is performed by using the same experimental protocol, focusing on the vegetative and reproductive traits as well as on all aspects related to fruit quality. This paper shows data collected since the planting in 1995 from fe…

Settore AGR/03 - Arboricoltura Generale E Coltivazioni Arboreerootstocks plums vigour yield nutraceutics
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