Search Results

You are looking at 61 - 70 of 2,251 items for :

  • photosynthesis x
  • Refine by Access: All x
Clear All
Free access

Krishna Nemali and Marc W. van Iersel

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

Free access

Richard J. Heerema, Dawn VanLeeuwen, Rolston St. Hilaire, Vince P. Gutschick, and Bethany Cook

. 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

Open access

Sara Andrea Moran-Duran, Robert Paul Flynn, Richard Heerema, and Dawn VanLeeuwen

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

Full access

Chenping Xu and Beiquan Mou

chitosan as a soil amendment might also result from its direct effect on plant nutrient status and metabolism, and photosynthesis. Soil-applied chitosan increased the content of nitrogen, phosphorus, potassium, total sugars, and soluble proteins as well as

Free access

Ozlem Altuntas, H. Yildiz Dasgan, and Yelderem Akhoundnejad

., 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

Open access

Koichi Nomura, Masahiko Saito, Ikunao Tada, Tadashige Iwao, Tomihiro Yamazaki, Nobuyuki Kira, Yasuyo Nishimura, Makito Mori, Esteban Baeza, and Masaharu Kitano

In modern horticultural crop production, wherever root-zone environments are optimally managed, canopy photosynthesis becomes the primary determinant of crop growth and yield, as suggested by numerous CO 2 enrichment experiments ( Ainsworth and

Free access

Tao Hu, Haiying Yi, Longxing Hu, and Jinmin Fu

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

Free access

Dario Mantovani, Adolfo Rosati, and Domenico Perrone

chamber. Because it is assumed that only one side of the cladode is sunlit, the photosynthesis values referred to half the lateral area, in accordance with the methodology used for Asparagus officinalis ( Guo et al., 2002 ). Spear photosynthesis was

Open access

Xuan Liu and Donald L. Suarez

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

Free access

Md. Jahedur Rahman, Haruhisa Inden, and Masaaki Kirimura

( Connor et al., 1993 ), sink assimilate demand ( Frageria, 1992 ), and availability of water as well as light and nutrients. Photosynthesis is also affected by different stress factors ( Taiz and Zeiger, 2006 ). The capacity of the plant’s photosynthetic