scholarly journals The impact of elevated CO2 and water deficit stress on growth and photosynthesis of juvenile cacao (Theobroma cacao L.).

2018 ◽  
Vol 56 (3) ◽  
pp. 911-920 ◽  
Author(s):  
F. Lahive ◽  
P. Hadley ◽  
A. J. Daymond
Keyword(s):  
Water Deficit ◽  
Theobroma Cacao ◽  
Water Deficit Stress ◽  
The Impact ◽  
Theobroma Cacao L

scholarly journals Penggunaan Mol Hijau Pada Tanaman Kakao Di Desa Dangintukadaya, Kecamatan Jembrana, Kabupaten Jembrana

2020 ◽  
Vol 2 (2) ◽  
pp. 16-19
Author(s):  
Nuranita Naningsi
Keyword(s):  
Theobroma Cacao ◽  
Fruit Growth ◽  
Contributing Factors ◽  
Cocoa Beans ◽  
Inappropriate Use ◽  
Small Fruit ◽  
The Impact ◽  
Chemical Pesticides ◽  
Theobroma Cacao L

This study aims to determine the effect of using green Local Microorganisms for cocoa plants ((Theobroma cacao L) Cocoa is a plant that has many benefits. Production of cocoa beans often decreases. One of the contributing factors is due to white bug infestation (Planococcus minor). These insects suck the small fruit so the fruit will dry up and fruit growth is inhibited. Inappropriate use of synthetic insecticides will have a bad impact. Local Microorganisms is fermented solution made from the materials around us. The aim of this study giving farmers an understanding of the purpose, benefits and mechanism for using green Local Microorganisms to reduce the impact of using chemical pesticides. Green Local Microorganisms is very effective in killing white lice on cocoa plants.

scholarly journals The impact of humic acid fractions on swelling and germination of ‘Progres’ and ‘Nawiko’ soybean seeds under salt and water deficit stresses

2016 ◽  
Vol 69 (3) ◽  
Author(s):  
Andrzej Gawlik ◽  
Dorota Gołębiowska ◽  
Danuta Kulpa ◽  
Romualda Bejger ◽  
Renata Matuszak-Slamani ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Salt Stress ◽  
Polyethylene Glycol ◽  
Water Deficit ◽  
Negative Impact ◽  
Laboratory Research ◽  
Water Deficit Stress ◽  
Soybean Seeds ◽  
The Impact ◽  
Millipore Filters

A laboratory research was carried out to examine the impact of humic acids (HA) on swelling and germination of ‘Nawiko’ and ‘Progres’ soybean seeds under salt stress (50 mM dm<sup>−3</sup> NaCl) and water deficit stress (−0.5 MPa) induced by polyethylene glycol (PEG) 6000. HA in the form of a dry preparation was obtained from peat using the IHSS method. Tests on swelling and germination used non-fractionate preparation (NFHA) and two of its molecular fractions obtained using Millipore filters with a 30 kDa cut-off point. This enabled us to obtain two fractions: with a higher molecular weight, above 30 kDa (HMHA), and a lower molecular weight, below 30 kDa (LMHA). The carbon concentration in HA solutions, used in all tests, was 0.005 g C<span><sub>HA</sub></span> dm<sup>−3</sup>. The results showed that HA mitigate the negative impact of salinity and water deficit on swelling and germination of soybean seeds.

scholarly journals Molecular, Physiological and Biochemical Responses of Theobroma cacao L. Genotypes to Soil Water Deficit

PLoS ONE ◽  
2014 ◽  
Vol 9 (12) ◽  
pp. e115746 ◽  
Author(s):  
Ivanildes C. dos Santos ◽  
Alex-Alan Furtado de Almeida ◽  
Dário Anhert ◽  
Alessandro S. da Conceição ◽  
Carlos P. Pirovani ◽  
...  
Keyword(s):  
Soil Water ◽  
Water Deficit ◽  
Theobroma Cacao ◽  
Soil Water Deficit ◽  
Biochemical Responses ◽  
Theobroma Cacao L ◽  
Physiological And Biochemical

scholarly journals Review of water deficit mediated changes in vine and berry physiology; Consequences for the optimization of irrigation strategies

OENO One ◽  
2019 ◽  
Vol 53 (3) ◽  
Author(s):  
Thibaut Scholasch ◽  
Markus Rienth
Keyword(s):  
Water Deficit ◽  
Water Use ◽  
Water Status ◽  
Abiotic Factors ◽  
Mitigation Strategies ◽  
Water Deficit Stress ◽  
Current Debate ◽  
Status Assessment ◽  
The Impact ◽  
Scientific Advances

The increasing risk of water deficit stress due to global warming subjects winegrowers of traditional rain fed viticulture regions to new challenges regarding vine water status assessment and possible drought mitigation strategies, such as irrigation.This review summarizes the most recent studies on the impact of water deficit stress on vine and berry physiology; it discusses the latest scientific advances regarding hormonal and hydraulic regulation and segmentation and addresses the current debate on iso/an-isohydricity within vine cultivars. Latest literature on irrigation frequency, water stress memory and the impact of abiotic factors such as VPD (Vapor Pressure Deficit), radiation, temperature and canopy architecture on vine physiology and water use, raise important questions on water status assessment and the implementation of irrigation strategies. Practical consequences regarding the effects of vine water regime on vine water regulatory mechanisms are discussed. Recent technical and scientific advances shed new light on how site specific irrigation strategies matching production objectives could improve vineyard water use.

Two fruits per pedicel in cacao (Theobroma cacao L.) – a rare phenotype

2013 ◽  
Vol 12 (2) ◽  
pp. 259-262
Author(s):  
Junior Bhola ◽  
Thayil N. Sreenivasan ◽  
Frances L. Bekele ◽  
Lambert A. Motilal
Keyword(s):  
Theobroma Cacao ◽  
Seed Number ◽  
Fruit Morphology ◽  
Rare Phenotype ◽  
Single Flower ◽  
The Impact ◽  
Theobroma Cacao L

A rare aberrant fruit phenotype was found in cacao (Theobroma cacao L.) in St Augustine, Trinidad. Double fructification instead of single fructification on a single pedicel was observed. The aberration probably occurred as a result of the formation of two pistils in a single flower. Fruits matured as normal, and fruit morphology and seed number were within the range of that reported for normal fruits of the accession observed in Trinidad. The plant is under investigation and the impact of this finding is highlighted.

scholarly journals Toward Coalescing Gene Expression and Function with QTLs of Water-Deficit Stress in Cotton

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Hirut Kebede ◽  
Paxton Payton ◽  
Hanh Thi My Pham ◽  
Randy D. Allen ◽  
Robert J. Wright
Keyword(s):  
Abiotic Stress ◽  
Water Deficit ◽  
Fiber Quality ◽  
Water Deficit Stress ◽  
Abiotic Stress Response ◽  
Consensus Sequences ◽  
Stress Genes ◽  
Sequence Tagged Sites ◽  
And Function ◽  
The Impact

Cotton exhibits moderately high vegetative tolerance to water-deficit stress but lint production is restricted by the available rainfed and irrigation capacity. We have described the impact of water-deficit stress on the genetic and metabolic control of fiber quality and production. Here we examine the association of tentative consensus sequences (TCs) derived from various cotton tissues under irrigated and water-limited conditions with stress-responsive QTLs. Three thousand sixteen mapped sequence-tagged-sites were used as anchored targets to examine sequence homology with 15,784 TCs to test the hypothesis that putative stress-responsive genes will map within QTLs associated with stress-related phenotypic variation more frequently than with other genomic regions not associated with these QTLs. Approximately 1,906 of 15,784 TCs were mapped to the consensus map. About 35% of the annotated TCs that mapped within QTL regions were genes involved in an abiotic stress response. By comparison, only 14.5% of the annotated TCs mapped outside these QTLs were classified as abiotic stress genes. A simple binomial probability calculation of this degree of bias being observed if QTL and non-QTL regions are equally likely to contain stress genes was P(x ≥ 85)=7.99  × 10−15. These results suggest that the QTL regions have a higher propensity to contain stress genes.

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