Basave-Villalobos Erickson, Cetina-Alcalá Víctor M, Conde-Martínez Víctor, López-López Miguel Á, Trejo Carlos, Ramírez-Herrera Carlos
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Campo Experimental Valle del Guadiana, Carretera Durango-El Mezquital Km 4.5, Durango 34170, Mexico.
Colegio de Postgraduados, Campus Montecilllo, Carretera México-Texcoco Km 36.5, Montecillo, Texcoco 56230, Mexico.
Plants (Basel). 2022 Apr 12;11(8):1042. doi: 10.3390/plants11081042.
Understanding the responses that some plants exhibit to acclimatize and thrive in different light environments can serve as a guideline to optimize their production or establishment. Morpho-physiological changes in and were examined in response to varying light levels: 25%, 35%, 55% and 70% of photosynthetic photon flux density (PPFD) of total solar radiation. One-month-old seedlings were subjected to the light treatments; subsequently, the effects on morphology, photosynthetic capacity, nutrient status, non-structural carbohydrate reserves (NSC) and growth were evaluated in three-month-old seedlings. Light levels affected several morpho-physiological parameters. responded better to higher light levels and to lower levels. Particularly, with 70% PPFD increased its size in height and diameter, and accumulated more biomass in leaves, stems, and roots; it also exhibited higher net assimilation rates, improved nitrogen and phosphorus status and growth. In contrast, with 25% PPFD increased aboveground biomass, nitrogen levels and NSC in leaves. Both species show morpho-physiological changes that determine their ability to acclimatize to different light conditions. This serves as a basis for designing better management strategies in the nursery or field by defining the light environments conducive to a proper functioning.
了解一些植物为适应不同光照环境并茁壮成长而表现出的反应，可为优化其生产或定植提供指导。研究了[植物名称1]和[植物名称2]在不同光照水平下的形态生理变化：分别为总太阳辐射光合光子通量密度（PPFD）的25%、35%、55%和70%。对1月龄幼苗进行光照处理；随后，评估了对3月龄幼苗的形态、光合能力、养分状况、非结构性碳水化合物储备（NSC）和生长的影响。光照水平影响了几个形态生理参数。[植物名称1]对较高光照水平反应更好，[植物名称2]对较低光照水平反应更好。特别是，[植物名称1]在70%PPFD条件下，株高和直径增加，叶、茎和根中积累了更多生物量；它还表现出更高的净同化率、改善的氮和磷状况以及生长。相比之下，[植物名称2]在25%PPFD条件下地上生物量、叶片中的氮水平和NSC增加。两个物种都表现出形态生理变化，这些变化决定了它们适应不同光照条件的能力。这为通过定义有利于正常功能的光照环境，在苗圃或田间设计更好的管理策略奠定了基础。
