Optimizing yield and flavour consistency of rocket greens

优化火箭蔬菜的产量和风味一致性

• 批准号: 2446615
• 金额: --
• 依托单位: Lancaster University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2446615
• 关键词: Optimizing; yield; flavour; consistency; rocket

Perennial wall rocket (Diplotaxis tenuifolia; Brassicaceae) is becoming an increasingly important food crop for its high nutrient content, ease of use in ready-made salads, and environmentally friendly perennial life history strategy. While most crops use C3 photosynthesis, rocket uses a rare and poorly understood type of physiology called C2 photosynthesis. Plants that use C2 photosynthesis are efficient under warm, dry, and bright environments- but are also fairly plastic and should be able to shift physiologies between C3 and C2 pathways to maintain efficiency under different growth conditions. This CTP is therefore designed to characterize the photosynthetic diversity across rocket varieties (e.g., do those varieties originating from cold northern latitudes show weaker C2 characteristics than varieties originating from warm southern Europe?) and determine the degree to which each rocket variety can shift between C2 vs C3 photosynthetic pathways under different environments. Studentship aims: 1. curate a collection of diverse rocket varieties; 2. grow this diversity under different growth conditions in a set of field trials (i.e., in southern Italy, northern Italy, Spain, and the UK) and under controlled environment conditions as part of a placement with Bakkavor; 3. quantify the biomass and flavour profile of diverse rocket varieties under each set of growth conditions; and4. determine to what degree the physiology varies or remains constant across these rocket varieties in different environments, and how this affects yield and flavour. Shifts between C2 and C3 physiology will be assessed in rocket leaves via quantification of physiological, anatomical, and 13C stable isotope parameters. This PhD project will ultimately identify the rocket varieties and environmental conditions that convey yield and flavour consistency and maximise biomass and flavour, to improve the sustainability and consumer attractiveness of this important crop.

多年生壁莲(Diploaxis tenuifolia；Brassicaceae)因其营养含量高、易于在现成沙拉中使用以及环境友好的多年生生活史策略而日益成为一种重要的粮食作物。虽然大多数作物使用C3光合作用，但火箭使用的是一种罕见且鲜为人知的生理学类型，称为C2光合作用。利用C2光合作用的植物在温暖、干燥和明亮的环境中是有效的，但也是相当可塑性的，应该能够在C3和C2途径之间转换生理，以在不同的生长条件下保持效率。因此，这一CTP旨在描述不同火箭品种之间的光合作用多样性(例如，那些起源于寒冷北纬的品种是否表现出比起源于温暖的南欧的品种更弱的C2特征？)并确定每个火箭品种在不同环境下在C2和C3光合作用途径之间转换的程度。学生计划的目标：1.收集各种火箭品种；2.在一系列田间试验中(即在意大利南部、意大利北部、西班牙和英国)在不同的生长条件下种植这种多样性，并作为与Bakkavor一起安置的一部分，在受控环境条件下种植这种多样性；3.量化每组生长条件下不同火箭品种的生物量和风味特征；确定这些火箭品种在不同环境下的生理变化或保持不变的程度，以及这如何影响产量和风味。C2和C3生理学之间的转换将通过量化生理、解剖和13C稳定同位素参数在火箭叶片中进行评估。该博士项目将最终确定火箭品种和环境条件，以传达产量和风味一致性，并最大限度地提高生物量和风味，以提高这种重要作物的可持续性和消费者吸引力。