{"title":"Fluctuations in Radiation Use Efficiency Throughout the Growth Cycle in Diploid Potato Crop","authors":"","doi":"10.1007/s12230-023-09938-y","DOIUrl":null,"url":null,"abstract":"<h3>Abstract</h3> <p>The capture of incoming solar radiation under unlimited light, water, and nutrient conditions by plant canopies and converting it into biomass has been described as radiation use efficiency (RUE). RUE has been computed as a function of biomass accumulation and intercepted photosynthetically active radiation without considering the loss of photoassimilates due to respiratory processes. This study evaluated the RUE in diploid potato crop (<em>Solanum phureja</em> Juz. <em>et</em> Buk.) across six experiments in Colombia. Total biomass was measured during the crop season from the early vegetative stage through maturity. However, this proposal involves not only the total biomass accumulated concerning the amount of photosynthetically active radiation intercepted but also took into account the losses by respiration, following Thornley respiration approach. This research demonstrates that the RUE is not a constant value as the respiration process leads to RUE values being variable in a non-linear way over time. The daily RUE simulation, conducted through an interpolation process, revealed significant variation from emergence to the end of the cycle. This indicates an error in assuming a constant RUE throughout the entire growth period, particularly in assessing its physiological impact across the entire growth and development crop cycle.</p>","PeriodicalId":7596,"journal":{"name":"American Journal of Potato Research","volume":null,"pages":null},"PeriodicalIF":1.2000,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"American Journal of Potato Research","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1007/s12230-023-09938-y","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"AGRONOMY","Score":null,"Total":0}
引用次数: 0
Abstract
The capture of incoming solar radiation under unlimited light, water, and nutrient conditions by plant canopies and converting it into biomass has been described as radiation use efficiency (RUE). RUE has been computed as a function of biomass accumulation and intercepted photosynthetically active radiation without considering the loss of photoassimilates due to respiratory processes. This study evaluated the RUE in diploid potato crop (Solanum phureja Juz. et Buk.) across six experiments in Colombia. Total biomass was measured during the crop season from the early vegetative stage through maturity. However, this proposal involves not only the total biomass accumulated concerning the amount of photosynthetically active radiation intercepted but also took into account the losses by respiration, following Thornley respiration approach. This research demonstrates that the RUE is not a constant value as the respiration process leads to RUE values being variable in a non-linear way over time. The daily RUE simulation, conducted through an interpolation process, revealed significant variation from emergence to the end of the cycle. This indicates an error in assuming a constant RUE throughout the entire growth period, particularly in assessing its physiological impact across the entire growth and development crop cycle.
摘要 植物冠层在无限光照、水分和养分条件下捕获进入的太阳辐射并将其转化为生物量的过程被称为辐射利用效率（RUE）。辐射利用效率是作为生物量积累和截获的光合有效辐射的函数来计算的，而不考虑呼吸过程造成的光同化物的损失。本研究评估了二倍体马铃薯作物（Solanum phureja Juz.在作物生长期内，从植株初期到成熟期，对总生物量进行了测量。不过，这项建议不仅涉及截获的光合有效辐射量所积累的总生物量，还考虑到了桑利呼吸法的呼吸损失。这项研究表明，RUE 并不是一个恒定值，因为呼吸过程会导致 RUE 值随时间以非线性方式变化。通过内插法进行的每日 RUE 模拟显示，从萌发到周期结束，RUE 值变化很大。这表明在整个生长期假设 RUE 值恒定是错误的，特别是在评估其对作物整个生长发育周期的生理影响时。
期刊介绍：
The American Journal of Potato Research (AJPR), the journal of the Potato Association of America (PAA), publishes reports of basic and applied research on the potato, Solanum spp. It presents authoritative coverage of new scientific developments in potato science, including biotechnology, breeding and genetics, crop management, disease and pest research, economics and marketing, nutrition, physiology, and post-harvest handling and quality. Recognized internationally by contributors and readership, it promotes the exchange of information on all aspects of this fast-evolving global industry.
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