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Joan Casals,Aurora Rull,Mauro Bernal,Ramiro González,Roser Romero del Castillo,Joan Simó 한국원예학회 2018 Horticulture, Environment, and Biotechnology Vol.59 No.5
Tomato landrace producers are adopting grafting technology to overcome agronomic deficiencies and increase plant yields. Landraces are valued for their higher organoleptic quality, so it is important to assess the impact of grafting on their sensory profile. We studied the influence of ‘Beaufort’ rootstock on agronomic, morphologic, and sensory traits using two landraces (‘Mando’ and ‘Montgri’) and one commercial cultivar (‘Egara’) as scions in two extreme management systems for tomato cultivation: conventional/greenhouse and organic/open field. Panel sensory analysis found that grafting onto ‘Beaufort’ had a negative effect on sensory attributes, reducing sweetness, acidity, and intensity of flavor in the organic system and sweetness and intensity of flavor in the conventional system. In conventional management, grafting also modified some aspects of fruit appearance. In the conventional system, grafting significantly increased yield in all the genotypes (mean increase, 52%). By contrast, in the organic system, grafting increased yield only in the ‘Mando’ landrace (mean increase, 62.3%). As many genotype × grafting interactions affecting many important commercial traits occurred in both management systems, specific studies with different rootstock-scion combinations are highly recommended before adopting this technique for producing landraces with high sensory quality.
이용률 건국대학교 1986 論文集 Vol.22 No.1
Though we start this note with abstract Morse complex, it is in reality defined to be a chain complex over critical manifold 0 or 1 dimension for a manifold with S1-action and an invariant strongly nondegenerated energy function. In the chain group of Morse complex, there is defined a natural splitting Sn+ Tn by the subgroup Sn generated over critical submanifolds of 1 dimension. In this note we see geometric aspect on the space of closed curves ∧M on a Riemannian manifold M provided that ∧M has an S1 invariant strongly nondegenerated energy function. There we find an S1-equivalent map K of a class of submanifolds with boundary into the Morse complex. Though we do not go into full derail, an expository work on them may be found in [3].