Incidence of latex harvesting technologies on agronomic and physiological parameters and profitability of some rapid metabolic class clones of rubber tree (&lt;i&gt;Hevea brasiliensis&lt;/i&gt;) in southwestern Côte d’Ivoire

Atsin, G. J. O.; Soumahin, Eric Francis; Mahyao, A.; Okoma, Koffi Mathurin; Kouakou, Tanoh Hilaire; Obouayeba, Samuel

doi:10.4314/ijbcs.v11i5.21

Cited by 1 publication

(1 citation statement)

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“…This approach is adopted in response to increasing labour costs and skilled-tapper shortage. Although some studies showed that quick starter clones have a low response to ethylene stimulation and consequently are less suitable to the low-frequency tapping (Atsin et al 2014;Atsin et al 2017), some new quick-starter clones may be more responsive to ethylene application. On the other hand, several studies showed that high sugar loading clones were able to amplify the benefit of low-frequency tapping (Gohet et al 1996;Soumahin et al 2009;Lacote et al 2010;Diarrassouba et al 2012).…”

Section: Limited Use Of Latex Diagnosis In Breeding Programmentioning

confidence: 99%

A Meta-Analysis of Latex Physiology Studies Reveals Limited Adoption and Difficulties to Interpret Some Latex Diagnosis Parameters in Hevea brasiliensis

Junaidi¹,

Clément‐Vidal

Nuringtyas

et al. 2022

HAYATI J Biosci

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Latex diagnosis is widely adopted in natural rubber-producing countries to optimize the natural rubber production through a physiological-based latex-harvesting system management. This study is the first bibliographical searching and meta-analysis on the variation of latex physiological parameters i.e. sucrose, inorganic phosphorus, thiols, and total solid content. The study used information extracted from 158 scientific papers. Descriptive statistics, agglomerative hierarchical clustering, and principal component analysis were performed to characterize applications of latex diagnosis, how often parameters are used and interpreted as well as the variation of its parameter values. From 158 papers, latex diagnosis parameters were used in 114 agronomy, 22 in physiology, and 22 in breeding papers. The agglomerative hierarchical clustering analysis indicated that sucrose and inorganic phosphorus contents were clustered together and total solid and thiols contents were located in another cluster. The average values of the total solid content, sucrose, inorganic phosphorus and thiols were 43.9%, 9.4 mM, 16.5 mM, and 0.52 mM, respectively. The percentage of interpretation is 63.3% for sucrose, 54.4% for inorganic phosphorus, 47.5% for thiols, and 41.1% for the total solid content. The low interpretation of thiols and total solid contents question their relevance in latex diagnosis. The low adoption of latex diagnosis in breeding could hinder the selection of activities leads to a limitation of selection for long-term high yielding and stress-adapted clones.

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Section: Limited Use Of Latex Diagnosis In Breeding Programmentioning

confidence: 99%