在地中海气候下牛种植地的评价
Efstathia Lazaridi1, Penelope J Bebeli1
1Laboratory of Plant Breeding and Biometry, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece.
Plants (Basel, Switzerland)
|September 1, 2023
概括
牛土地品种表现出不同的产量稳定性. 来自基希拉岛的VG23陆地品种在地中海条件下表现出优异的种子产量和稳定性,突出了其改善作物的潜力.
科学领域:
- 农业科学 农业科学
- 植物育种 植物育种
- 农业学是一种农业学.
背景情况:
- 牛 (Vigna unguiculata) 的产量对环境波动非常敏感,特别是在关键生长阶段的干旱.
- 干旱压力显著降低了种子产量,使得产量稳定成为牛育种计划的关键目标.
- 当地陆地品种是有价值的遗传资源,在低投入系统中,尽管产量中等,但通常表现出更大的稳定性.
研究的目的:
- 评估在地中海气候条件下五种选定的牛土地品种的产量表现和稳定性.
- 确定有希望的牛基因型,以提高希腊农业系统的种子产量和稳定性.
- 评估环境变化在三个作物季节对陆地品种表现的影响.
主要方法:
- 在三个连续的生长季节中,采用了随机的完整块设计,其中有四个复制.
- 对每种牛大陆品种的现象学和农学特征都被系统地记录下来.
- 进行了统计分析,以确定基因型 × 实验年相互作用和整体年效应.
主要成果:
- 对于许多研究的特征,观察到显著的基因型 × 实验年相互作用,表明环境对性能的影响.
- 一个强大的实验年效应强调了气候条件在三个季节的变化.
- 在测试条件下,Cowpea陆地品种VG23 (基希拉岛) 显示出最高的种子生产率,而VG2 (莱姆诺斯岛) 显示出低的生产率.
结论:
- 牛VG23陆地品种显示出作为提高种子产量的遗传物质来源的巨大潜力.
- 当地的牛陆地品种的产量稳定性差异很大,需要对特定环境进行仔细的选择.
- 地中海农业气候条件带来了挑战,但像VG23这样的特定陆地品种可以壮成长,并提供更好的生产力.
相关概念视频
01:57Adaptations that Reduce Water Loss
25.7K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.7K
01:59Plant Breeding and Biotechnology
19.0K
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
19.0K
02:41Responses to Drought and Flooding
10.7K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.7K
02:16Light Acquisition
8.5K
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
8.5K
01:46The Calvin Benson Cycle
4.6K
Ribulose 1,5- bisphosphate carboxylase/oxygenase (RuBisCo) is a critical enzyme that catalyzes carbon dioxide assimilation during photosynthesis. However, it is an inefficient enzyme, having an extremely slow catalytic rate. A typical enzyme can process about a thousand molecules per second; however, RuBisCo fixes only around three-carbon dioxides per second. Photosynthetic cells compensate for this slow rate by synthesizing very high amounts of RuBisCo, making it the most abundant single...
4.6K
02:35Key Elements for Plant Nutrition
18.8K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
18.8K