Assessing growth, early yielding and resistance in rubber tree clones under low South American Leaf Blight pressure in the Amazon region, Colombia

Sterling, Armando; Martínez-Viuche, Eidy Janeth; Suárez-Córdoba, Yerson Duban; Agudelo-Sánchez, Ariel Antonio; Fonseca-Restrepo, Jesica Andrea; Andrade-Ramírez, Tatiana K.; Virguez-Díaz, Yeny Rocío

doi:10.1016/j.indcrop.2020.112958

Cited by 12 publications

(23 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The limitations evidenced in the gas exchange parameters during the dry period, which were associated with an increase in VPD, reflect the need to conserve water as a strategy to survive droughts [20,21], which, in this study at the time of highest photosynthetic efficiency (9:00 h), caused reductions between 45 and 47% in photosynthetic rates in some genotypes such as ECC 25 and ECC 60 and reductions between 31 and 35% in leaf water potentials in others such as IAN 873 and ECC 64, with respect to the rainy period (Figures 2 and 3).…”

Section: Discussionmentioning

confidence: 99%

“…In April of 2017, an experiment known as Large-Scale Clonal Trial (LSCT) [66] was established at each study site, as done in previous studies [13,20,21,67]. Thus, each LSCT was conducted with a randomized complete block design with 10 treatments (genotypes) and four replications (plots) randomly arranged in Fisher blocks, with 60 trees per genotype and per replication.…”

Section: Experiments Design and Field Trial Maintenancementioning

confidence: 99%

“…Various studies carried out in the Colombian Amazon have sought to identify new introduced genotypes with desirable characters that are adaptable to different conditions and environments in the growth phase [13,20] and in the early production phase [21]. One of the greatest opportunities for the genetic improvement of H. brasiliensis lies in the regional elite germplasm [22].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Photosynthesis-Related Responses of Colombian Elite Hevea brasiliensis Genotypes under Different Environmental Variations: Implications for New Germplasm Selection in the Amazon

Sterling

Cruz

Clavijo-Arias

et al. 2021

Plants

Self Cite

View full text Add to dashboard Cite

The objective of this study was to evaluate photosynthetic performance based on gas exchange traits, chlorophyll a fluorescence, and leaf water potential (ΨL) in nine Hevea brasiliensis genotypes from the ECC-1 (Élite Caquetá Colombia) selection and the cultivar IAN 873 (control) in response to different climatic (semi-humid warm and humid warm climates), seasonal (dry and rainy periods), and hourly (3:00 to 18:00) variations that can generate stress in the early growth stage (two-year-old plants) in two large-scale clonal trials in the Colombian Amazon. The photosynthetic performance in 60% of the Colombian genotypes was slightly affected under the conditions with less water availability (dry period, semi-humid warm site, and between 9:00 and 15:00 h), as compared with IAN 873, whose affectation was moderate in terms of photosynthesis rates, but its water conservation strategy was strongly affected. The ECC 90, ECC 83, and ECC 73 genotypes had the best photosynthetic performance under conditions of greater water limitation, and ECC 35, and ECC 64 had a higher water status based on the leaf water potential, with intermediate photosynthetic performance. This germplasm has a high potential for selection in rubber tree breeding programs in future scenarios of climate change in the Colombian Amazon.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Experiments Design and Field Trial Maintenancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Photosynthesis-Related Responses of Colombian Elite Hevea brasiliensis Genotypes under Different Environmental Variations: Implications for New Germplasm Selection in the Amazon

Sterling

Cruz

Clavijo-Arias

et al. 2021

Plants

Self Cite

View full text Add to dashboard Cite

show abstract

“…), with negative consequences for natural ecosystems. Others are developing new rubber genotypes with more resistance to diseases and good latex production [4] for cultivation in traditional areas. The genetic improvement of commercial rubber is not enough to guarantee good latex production because cultivated plants require good nutrition.…”

Section: Introductionmentioning

confidence: 99%

“…In Colombia, rubber production is based mainly on three introduced genotypes-IAN 873, IAN 710, and FX 3864 [6]. These rubber genotypes have been planted in areas with a high incidence of SALB, resulting in a high presence of the disease and low local latex production [4].…”

Section: Introductionmentioning

confidence: 99%

Arbuscular Mycorrhization in Colombian and Introduced Rubber (Hevea brasiliensis) Genotypes Cultivated on Degraded Soils of the Amazon Region

2021

Self Cite

View full text Add to dashboard Cite

Rubber (Hevea brasiliensis, (Willd. Ex Adr. de Juss) Muell. Arg, Euphorbiaceae) is an important commercial latex-producing plant. Commercially, rubber is reproduced from a limited number of grifting genotypes. New promising genotypes have been selected to replace traditional genotypes. In addition, rubber has been promoted to recuperate Amazon soils degraded by extensive cattle ranching. Arbuscular mycorrhizal (AM) symbiosis is an important alternative for improving plant nutrition in rubber trees and recuperating degraded soils, but AM fungal communities on different plantations and in rubber genotypes are unknown. Spore abundance, root colonization and AM fungal community composition were evaluated in rubber roots of Colombian and introduced genotypes cultivated in degraded soils with different plantation types. Traditional (spore isolation and description; clearing and staining roots) and molecular techniques (Illumina sequencing) were used to assess AM fungi. Rubber roots hosted a diverse AM fungal community of 135 virtual taxa (VT) in 13 genera. The genus Glomus represented 66% of the total AM fungal community. Rubber genotype did not affect the arbuscular mycorrhization, hosting similar AM fungal communities. The composition of the AM fungal community on old and young rubber plantations was different. Diversity in AM fungi in rubber roots is an important characteristic for restoring degraded soils.

show abstract

Rubber latex yield is affected by interactions between antecedent temperature, rubber phenology, and powdery mildew disease

et al. 2023

View full text Add to dashboard Cite

Assessing growth, early yielding and resistance in rubber tree clones under low South American Leaf Blight pressure in the Amazon region, Colombia

Cited by 12 publications

References 36 publications

Photosynthesis-Related Responses of Colombian Elite Hevea brasiliensis Genotypes under Different Environmental Variations: Implications for New Germplasm Selection in the Amazon

Photosynthesis-Related Responses of Colombian Elite Hevea brasiliensis Genotypes under Different Environmental Variations: Implications for New Germplasm Selection in the Amazon

Arbuscular Mycorrhization in Colombian and Introduced Rubber (Hevea brasiliensis) Genotypes Cultivated on Degraded Soils of the Amazon Region

Rubber latex yield is affected by interactions between antecedent temperature, rubber phenology, and powdery mildew disease

Contact Info

Product

Resources

About