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declines rapidly with small changes in substrate water content ( da Silva et al., 1993 ), making it more difficult for plants to extract water when Θ is low in the substrate. Photosynthesis is central to crop growth and highly sensitive to drought stress

. Leaf gas exchange was measured on 2 Oct. 2009, 1 Oct. 2010, and 5 Nov. 2010. Because ‘Western’ kernel fill continues through October in New Mexico, the early November photosynthesis measurement date was included in 2010 to ensure that we captured the

stresses ( Burgess and Huang, 2014 ; Ferreira et al., 2006 ; Huang et al., 2014 ; Jespersen et al., 2015 ; Kosová et al., 2011 ; Merewitz et al., 2011 ). In response to drought stress alone, the abundance of proteins involved in photosynthesis

data and SPAD readings were recorded, and the leaflet had to be located in the middle canopy of the tree. The same leaflet was used for both P n and SPAD. Leaf P n was measured using the LI-COR 6400XT portable photosynthesis system (LI-COR Inc

and g s , resulting in reduction of photosynthesis ( Sharma et al., 1995 ). Application of the three Zn fertilizers on Zn-deficient leaves significantly increased their chlorophyll levels and photosynthetic activities, especially when organosilicone

electrical conversion efficiency ( Gomez et al., 2013 ). HPS lamps were tailored for human vision and therefore are not ideally suited for plant growth ( Bula et al., 1991 ). Earlier research has shown that the most important wavelengths for photosynthesis

signaling networks involved. The photoreceptor (PR) network involves light absorption by phytochromes (PHY), cryptochromes (CRY) and the light oxygen voltage PRs, phototropin (PHO), and zeitlupe (ZTL). The photosynthesis (PSN) sensing and signaling network

., 2016 ). Silicon is also considered to be a beneficial element for plants ( Epstein and Bloom, 2005 ), and some argue that it is essential ( Ma, 2004 ). Whether essential or not, Si enhances water and solute transport, improves photosynthesis rates, and

genotypes (salt-tolerant BARLP 4317 and salt-sensitive PI 516605) 4 and 8 d after treatment began. Limitations to photosynthesis. Salinity stress led to a substantial reduction in P n and g S for both genotypes at 4 and 8 DAT. BARLP 4317 exhibited 63

photosynthesis is a central growth-controlling physiological process for plants to respond to salt stress. Leaf photosynthesis is composed of a physical CO 2 diffusion process for carbon supply and a sequence of physiological and biochemical processes for carbon