Search Results

You are looking at 1 - 10 of 2,296 items for :

  • Refine by Access: All x
Clear All
Free access

Babita Thapa, Rajeev Arora, Allen D. Knapp, and E. Charles Brummer

rapid, ensures freezing stress on intact tissues, and has been used to predict field performance ( Teutonico et al., 1993 ). Medicago truncatula cold acclimation has been assessed in several experiments, with contradictory results. The cultivar

Open access

Fan-Hsuan Yang, Lisa W. DeVetter, Bernadine C. Strik, and David R. Bryla

Calcium (Ca) is considered important for plant health and fruit quality. Without a sufficient level of Ca, several fruit quality defects may occur during fruit development ( de Freitas and Mitcham, 2012 ). For example, multiple studies have

Open access

Katherine Bennett, Jared Jent, Uttara C. Samarakoon, Guido Schnabel, and James E. Faust

a result of Ca cross-linking in the pectin chains ( Conway and Sams, 1984 ), resulting in polygalacturonic acid becoming less accessible spatially to polygalacturonase enzymes ( Cabanne and Donèche, 2002 ). Calcium deficiencies are common in

Free access

Ryan J. Hayes and Yong-Biao Liu

. Therefore, cultivars that are sensitive to CO 2 may perform better in CA chambers. Because of the rapid increase in lettuce produced for minimal processing into salad-cut products, it is critical that newly developed cultivars possess characters needed to

Free access

Lailiang Cheng and Richard Raba

showed a slight increase from budbreak to bloom, and then a very rapid increase from bloom to 1 month before harvest, followed by a slow increase to fruit harvest ( Fig. 5, D and J ). Total Ca and Mn in shoots and leaves accounted for most of the total Ca

Free access

Jennifer DeEll and Behrouz Ehsani-Moghaddam

also observed in ‘McIntosh’ from the later harvest stored in CA for nine months, with fruit treated twice having a higher incidence of the disorder. The fact that rapid consecutive applications of 1-MCP can augment core browning development is a risk of

Free access

Bernadine C. Strik and Amanda J. Vance

, Fresno, CA) containing pressure-compensating emitters (1.9 L·h −1 in-line) spaced every 0.6 m. Soil testing. Soil samples were collected on 12 Nov. 2013 and 21 Oct. 2014 using a 2.4-cm diameter, 0.5-m long, slotted, open-side, chrome-plated steel soil

Open access

Fernanda Trientini and Paul R. Fisher

). Cumulative release curves for CRF Bloom, CRF Plus, Ca(NO 3 ) 2 , MAP, and K 2 SO 4 showed an initial rapid discharge followed by a linear nutrient release over time. The initial rapid release can be explained by the presence of incompletely coated prills

Free access

Ryan J. Hayes, Bo Ming Wu, Barry M. Pryor, Periasamy Chitrampalam, and Krishna V. Subbarao

. Resistance resulting from escape mechanisms in lettuce (rapid bolting, low leaf area, and upright growth habit) are well documented ( Grube, 2004 ; Newton and Sequeira, 1972 ) and may delay or inhibit disease by promoting soil drying, lifting leaves off the

Free access

Cheryl Ann Engelkes, Irvin Widders, and Hugh Price

A field experiment was conducted to quantify the ontogenetic changes in Ca concentration and content of pickling cucumber fruits as influenced by environmental conditions and genotype. Pericarp tissue Ca concentrations (1.1% to 0.7% of dry weight) were higher but declined less rapidly during fruit development than endocarp concentrations (0.8% to 0.2% of dry weight). About 90% of net fruit Ca content accumulated within the pericarp of ≈150 g fresh weight fruit, the rest in the endocarp. The rate of Ca accumulation was highly variable during fruit ontogeny but was closely correlated with growth rate (grams fresh weight/day). Environmental conditions had the largest effect on Ca accumulation rate. Fruit tissue Ca concentrations were affected both by genotype and the cultural environment, especially at the later stages of fruit development. Calcium concentrations (1.5 to ≈3.0% of dry weight) in fully expanded leaf tissue were higher than in rapidly growing fruit tissues on the same plants.