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Abstract

ABSTRACT:Yield performance related to the time required for re-blooming after cutting of three Rosa hybrida cultivars (First Red, Versilia, and Virginia) was evaluated both on their own roots and grafted onto three rootstocks (Rosa indica, Rosa canina, and Rosa hybrida cv. Natal Briar) in a plastic house experiment for two successive years (1999 and 2000). Regardless of rootstock type, the three cultivar-rootstock combinations were superior (p<0.05) to the own rooted plants for yield and re-blooming time required. Irrespective of the cultivar, Natal Briar rootstock exhibited significantly higher flower production and spent a shorter time to re-bloom compared to the other rootstocks (R. indica and R. canina) and the rooted cuttings. Although, the later two rootstocks, R. indica and R. canina performed similarly, they were significantly better than the own rooted plants with respect to yield and re-bloom time. It is concluded that rose cut flower production is negatively correlated with the time (days) taken from planting to re-blooming. The shorter the time required for re-blooming the higher the flower yield, especially on the Natal Briar rootstock.

Influence of Grafting on Rootstock Rhizosphere Microbiome Assembly in Rosa sp. ‘Natal Brier’

“…Rose grafting is a propagation technique widely used to improve plant performance and flower quality [7,8,43]. The superior performance of grafted rose plants depends on rootstock selection, growing media, geographic region, environmental conditions, and culturing practices [7,[44][45][46]. The rootstock genotype selection influences the reblooming time, scion nutritional status, and dry matter partitioning [47,48].…”

“…Red roses are the most popular, and the cultivars Freedom TM by Rosen Tantau and Explorer TM by Interplant are the most popular red cultivars in Ecuadorian farms [2][3][4]. Grafting is a standard practice throughout commercial operations to increase yield, improve flower quality, or reduce root-associated diseases [5][6][7][8]. 'Natal Brier' (a hybrid of R. × multiflora and R. × damascena) has been the most used rootstock since 1990 [9,10].…”

Islamic Groups and their World-views and Identities: Neo-Traditional Salafis and Progressive Muslims

“…' with respect to both Islam and modernity 100. Moosa argues, however, that modernity's most precious gift of rational ity to the Muslim modernist of the nineteenth and twentieth century did not result in an embrace of the modern episteme in the realms of humani ties and social sciences.101 Therefore, he maintains, the Islamic intellectual…”