Effects of root wrenching on the growth and water relations of Prunus avium and Castanea sativa seedlings in nursery beds and after outplanting

1999 ◽  
Vol 29 (6) ◽  
pp. 696-704 ◽  
Author(s):  
N A Hipps ◽  
K H Higgs ◽  
L G Collard
Keyword(s):  
Drought Stress ◽  
Water Potential ◽  
Shoot Growth ◽  
Prunus Avium ◽  
Castanea Sativa ◽  
Severe Drought ◽  
Wild Cherry ◽  
Sweet Chestnut ◽  
Castanea Sativa Mill ◽  
Prunus Avium L

The roots of wild cherry (Prunus avium L.) and sweet chestnut (Castanea sativa Mill.) seedlings grown in a nursery bed at the same density (110 plants/m2) were cut by passing a wedge-shaped blade horizontally through the soil (wrenched) at 20 cm depth on 10 July (early) or 12 August (late) or on both dates. Shoot growth was reduced, and this coincided with lower final leaf areas for both species. Leaf water potential (ψ) and leaf conductance to water vapour (gl) of each were reduced immediately after the root wrenching treatments, but recovered within 1 month. Prunus avium seedlings that were late root wrenched suffered more severe drought stress than C. sativa seedlings wrenched at the same time. This was indicated by a larger reduction in ψ and shedding of leaves. Seedlings of P. avium that were wrenched early suffered less drought stress when wrenched a second time (late). Late root wrenching caused greater stress in P. avium than C. sativa, which is ascribed to the smaller quantity of their roots above the depth of wrenching. Early wrenching increased the total shoot growth of both species in the first 2 years after outplanting.

Effects of root wrenching on leaf mineral content of Prunus avium and Castanea sativa seedlings

2000 ◽  
Vol 30 (6) ◽  
pp. 958-963
Author(s):  
N A Hipps ◽  
T J Samuelson ◽  
L G Farman
Keyword(s):  
Mineral Content ◽  
Prunus Avium ◽  
Castanea Sativa ◽  
Growing Season ◽  
Wild Cherry ◽  
Nitrogen And Phosphorus ◽  
Sweet Chestnut ◽  
Negative Effect ◽  
Castanea Sativa Mill ◽  
Nitrogen Concentrations

The roots of wild cherry (Prunus avium L.) and sweet chestnut (Castanea sativa Mill.) seedlings grown from seed in a nursery bed were cut by passing a wedge-shaped blade horizontally through the soil (wrenched) at 20 cm depth on 10 July (early) or 12 August (late) or on both dates. Nitrogen concentrations in leaves of C. sativa and P. avium seedlings were severely reduced by early or late root wrenching, and except for the early wrenched C. sativa, seedlings had not fully recovered by the end of the growing season compared with the controls. Phosphorus concentrations also were reduced in the leaves of both species by wrenching treatments, but were similar to those found in undisturbed seedlings by the end of the season. The effects of wrenching treatments on the concentrations of potassium, manganese, and calcium in leaves of either species were generally negligible. The reduction in concentrations and total foliar content of nitrogen and phosphorus caused by the wrenching treatments in leaves of these species did not have a negative effect on growth following outplanting.

scholarly journals The Dynamics of Flower Development in Castanea Sativa Mill.

Plants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1538
Author(s):  
Ana Teresa Alhinho ◽  
Miguel Jesus Nunes Ramos ◽  
Sofia Alves ◽  
Margarida Rocheta ◽  
Leonor Morais-Cecílio ◽  
...  
Keyword(s):  
Flower Development ◽  
Molecular Mechanisms ◽  
Castanea Sativa ◽  
Male And Female ◽  
Sweet Chestnut ◽  
Chestnut Tree ◽  
Abcde Model ◽  
Organ Identity ◽  
Castanea Sativa Mill ◽  
Female Flowers

The sweet chestnut tree (Castanea sativa Mill.) is one of the most significant Mediterranean tree species, being an important natural resource for the wood and fruit industries. It is a monoecious species, presenting unisexual male catkins and bisexual catkins, with the latter having distinct male and female flowers. Despite the importance of the sweet chestnut tree, little is known regarding the molecular mechanisms involved in the determination of sexual organ identity. Thus, the study of how the different flowers of C. sativa develop is fundamental to understand the reproductive success of this species and the impact of flower phenology on its productivity. In this study, a C. sativa de novo transcriptome was assembled and the homologous genes to those of the ABCDE model for floral organ identity were identified. Expression analysis showed that the C. sativa B- and C-class genes are differentially expressed in the male flowers and female flowers. Yeast two-hybrid analysis also suggested that changes in the canonical ABCDE protein–protein interactions may underlie the mechanisms necessary to the development of separate male and female flowers, as reported for the monoecious Fagaceae Quercus suber. The results here depicted constitute a step towards the understanding of the molecular mechanisms involved in unisexual flower development in C. sativa, also suggesting that the ABCDE model for flower organ identity may be molecularly conserved in the predominantly monoecious Fagaceae family.

Clonal structure and recruitment in British wild cherry (Prunus avium L.)

2007 ◽  
Vol 242 (2-3) ◽  
pp. 419-430 ◽  
Author(s):  
S.P. Vaughan ◽  
J.E. Cottrell ◽  
D.J. Moodley ◽  
T. Connolly ◽  
K. Russell
Keyword(s):  
Prunus Avium ◽  
Clonal Structure ◽  
Wild Cherry ◽  
Prunus Avium L

scholarly journals Biocultural diversity of common walnut ( Juglans regia L.) and sweet chestnut ( Castanea sativa Mill.) across Eurasia

2020 ◽  
Vol 10 (20) ◽  
pp. 11192-11216
Author(s):  
Paola Pollegioni ◽  
Stefano Del Lungo ◽  
Ruth Müller ◽  
Keith E. Woeste ◽  
Francesca Chiocchini ◽  
...  
Keyword(s):  
Juglans Regia ◽  
Castanea Sativa ◽  
Biocultural Diversity ◽  
Sweet Chestnut ◽  
Castanea Sativa Mill ◽  
Common Walnut

scholarly journals Hydrolyzable Tannins from Sweet Chestnut Fractions Obtained by a Sustainable and Eco-friendly Industrial Process

2016 ◽  
Vol 11 (3) ◽  
pp. 1934578X1601100 ◽  
Author(s):  
Margherita Campo ◽  
Patrizia Pinelli ◽  
Annalisa Romani
Keyword(s):  
Gallic Acid ◽  
Membrane Separation ◽  
Industrial Process ◽  
Castanea Sativa ◽  
Chemical Compositions ◽  
Sweet Chestnut ◽  
Technology System ◽  
Test Range ◽  
Hydrolyzable Tannins ◽  
Castanea Sativa Mill

Sweet Chestnut ( Castanea sativa Mill.) wood extracts, rich in Hydrolyzable Tannins (HTs), are traditionally used in the tanning and textile industries, but recent studies suggest additional uses. The aim of this work is the HPLC-DAD-ESI-MS characterization of Sweet Chestnut aqueous extracts and fractions obtained through a membrane separation technology system without using other solvents, and the evaluation of their antioxidant and antiradical activities. Total tannins range between 2.7 and 138.4 mM; gallic acid ranges between 6% and 100%; castalagin and vescalagin range between 0% and 40%. Gallic Acid Equivalents, measured with the Folin-Ciocalteu test, range between 0.067 and 56.99g/100g extract weight; ORAC test results for the marketed fractions are 450.4 and 3050 μmol/g Trolox Equivalents/extract weight. EC50 values, measured with the DPPH test, range between 0.444 and 2.399 μM. These results suggest a new ecofriendly and economically sustainable method for obtaining chestnut fractions with differentiated, stable and reproducible chemical compositions. Such fractions can be marketed for innovative uses in several sectors.

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