期刊
PLANTA
卷 252, 期 1, 页码 -出版社
SPRINGER
DOI: 10.1007/s00425-020-03404-3
关键词
Drought stress; Elemental nutrient concentration; Photosynthesis; Gas exchange; Kernel parameters; Leaf relative water content
资金
- Faculty of Biology of the University of Barcelona (UB) through the graduate Industrial Ph.D. scholarship (Doctorat Industrial) [042-2015]
Main conclusion Coating maize seeds with the microbial plant protection productTrichoderma asperellumstrain T34 is an effective form of inoculation that enhances plant performance when faced with drought stress, and it improves nutrient and kernel parameters differently in drought and non-stressed conditions. Drought is currently one of the biggest threats to maize production.Trichodermaspp. is mainly used in agriculture as plant protection product with secondary beneficial effects on plants: improved growth, nutrient uptake and plant immunity. Here, we studied the physiological performance of maize plants under two different water regimes (fully irrigated and drought conditions) and three different seed treatments: application ofTrichoderma asperellumstrain T34, application of a chemical fungicide (CELEST XL) or the combination of both. Regardless of water regime, T34 treatment improved kernel P and C, kernel number and dry weight. Higher populations of T34 on the rhizosphere (T34 treatment) alleviated water stress better than lower T34 populations (T34+Q treatment). Under drought, T34 treatment improved leaf relative water content, water use efficiency, PSII maximum efficiency and photosynthesis. T34-treated maize seeds maintained sufficient T34 populations to alleviate drought throughout crop development suggesting an optimal dose of 10(4)and 10(5)colony forming units g(-1) dry weight of rhizosphere under the studied conditions. This work helps to demonstrate the beneficial interaction betweenT. asperellumstrain T34 and maize plants under drought.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据