【作者】 高敏；

【导师】 程智慧；

【作者基本信息】 西北农林科技大学 ， 园艺， 2010， 硕士

【摘要】 樱桃番茄(Lycopersicon esculentum var. cerasiforme Alef),是一种高档的果蔬兼用型蔬菜,也是近年来种植面积增加最快的蔬菜种类之一。千禧樱桃番茄是目前最具推广潜力的优良品种之一,但在西安地区种植的适宜栽培密度尚不明确。为了探讨栽培密度对千禧樱桃番茄产量及形态指标的影响,本试验设置了5个不同栽培密度处理进行研究。旨在探索千禧樱桃番茄高产的密度范围,为千禧樱桃番茄高产栽培提供理论参考。试验结果表明,西安地区千禧樱桃番茄中棚栽培的适宜密度为5300株/667㎡(株距0.32 m×行距0.40 m)左右。密度对千禧樱桃番茄产量性状和形态指标具有不同程度的影响。密度对果型指数影响不明显;株高、节间长、叶片数随密度增加而增加的趋势;功能叶大小和茎粗随密度增加明显减少;密度为5300株/667㎡时开花座果数最多,座果率最大(59.6%);密度在5300株/667㎡以内,产量随密度增加而提高;而密度在6300株/667㎡时产量下降;密度对千禧樱桃番茄物候期没有显著影响;单果重和折光糖量随密度增加依次降低;密度在4300株/667㎡以内,果实性状差异不明显。果型随密度增加明显变小。密度在6300株/667㎡折光糖含量最低。更多还原

【Abstract】 Cherry tomato (Lycopersicon esculentum var. cerasiforme Alef),As a kind of high-grade fruit vegetables, It is one of the most increasingly growing vegetable species on the amount of cultivation. Qianxi is one of the excellent tomato varieties, which is very valuable for spread and popularization, But the optimal cultivation density in Xi’an is still indeterminate. The study investigated the effects of planting density on growth, yield and quality by designing five different planting densities in order to determine the suitable planting density range, which would supply reference for large scale production of cherry tomato cv Qianxi’in Xi an region.The experiment results prove that the suitable planting density of cherry tomato cv Qianxi grown in medium-sized plastic tunnel is 5300 plants per 667㎡(density of 0.32m×0.40m) in Xi an region.Planting density has different effects on the yield and the formal properties of cherry tomato cv Qianxi. No obvious effects on the fruit-size index by planting density. The plant height, length between the joints and the number of leaf increased with the planting density, whereas the size of functional leaf, stem diameter obviously decreased with the planting density. The largest number of flowers and fruit-setting and highest fruit-setting rate (59.6%) were found at the density of 5300 plants per 667㎡. The yield increased within the density of 5300 plants per 667㎡ and then which dropped when the density increased to the density of 6300 plants per 667㎡. Cherry tomato cv Qianxi plant density has no effect on phonology. The single fruit weight and the refraction sugar content gradually dropped with the increase of the density. No obvious differences of the formal properties of fruit were detected within the density of 4300 plants per 667㎡. The lowest refraction sugar content was found when the density was 6300 plants per 667㎡.更多还原