Agronomic Potential of Some Rubber Tree Clones (Hevea brasiliensis) of the Fast Metabolic Activity Class in the Absence of Hormonal Stimulation in Southwestern of Côte d’Ivoire

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

doi:10.9734/ajea/2016/26930

Cited by 10 publications

(15 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For each of the clones studied, inorganic phosphorus average contents in latex were globally similar regardless stimulation frequencies applied. This result highlights the activating effect of tapping metabolism as shown by the works of Obouayeba et al (1996), Dick et al (2014) and Atsin et al (2016); high tapping frequency (d2) resulting in a high Pi content in absence of hormonal stimulation. This result confirms that in active-metabolism clones, intrinsic metabolic energy is available and sufficient (Lacote et al, 2010).…”

Section: Effect Of Latex Harvesting Technologies On Physiological Prosupporting

confidence: 70%

“…These works helped group clones into three metabolic activity classes' slow, moderate and rapid (Serres et al, 1994;Jacob et al, 1995;Gohet et al, 1996). Rapid metabolic activity class includes clones with an easy flow leading to high rubber yield in absence of hormonal stimulation (Chapuset et al, 2000;Atsin et al, 2016). In spite of these interesting agronomic and physiological characteristics, these clones are basically sensitive to tapping panel dryness and breakage due to the wind.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

Atsin¹,

Soumahin²,

Mahyao³

et al. 2018

Int. J. Bio. Chem. Sci

Self Cite

View full text Add to dashboard Cite

Rubber tree rapid-metabolism clones generally have interesting agronomic and physiological characteristics. However, they are mostly sensitive to tapping panel dryness and breakage due to wind. This could be probably due to overexploitation caused by high tapping frequencies and/or high hormonal stimulation systems. To try solving this problem, a study was carried out over nine years using clones PB 260, PB 280 and PB 330 planted at a density of 510 plants/ha in southwestern Côte d'Ivoire. The experimental design was a randomized complete blocks with different latex harvesting technologies. The estimated parameters were rubber yield, radial vegetative growth, physiological profile and the profitability of applied latex harvesting technologies. Results indicated that non-stimulated combined with high tapping frequency latex harvesting system (d2 0/y) showed a level of rubber yield comparable to that of tapping frequencies d3 and d4 in all studied clones irrespective of the level of hormonal stimulation applied. Furthermore, the absence of hormonal stimulation had no negative influence on the vegetative growth and the physiological profile of rubber trees. Every two days (d2) tapping system without stimulation generated a profit margin statistically identical to that of low tapping frequencies (d4, d5 and d6) irrespective of the level of hormonal stimulation.

show abstract

Section: Effect Of Latex Harvesting Technologies On Physiological Prosupporting

confidence: 70%

Section: Introductionmentioning

confidence: 99%

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

Atsin¹,

Soumahin²,

Mahyao³

et al. 2018

Int. J. Bio. Chem. Sci

Self Cite

View full text Add to dashboard Cite

show abstract

“…This is due to the fact that tapping produces an activating effect of the rubber production metabolism, as noted by Obouayeba et al (1996) and Atsin et al (2016). Indeed, tapping, by the stress it induces, activates the metabolism as well as hormonal stimulation by ethylene production (Chrestin, 1985;Atsin et al 2016). At the agronomic level, the clones PB 260 and IRCA 130 express more economic interest than the other clones, in particular clones PB 235 and PB 330.…”

Section: Resultsmentioning

confidence: 91%

“…This situation is observable at the level of all the different clones of our study and independently of the frequency of tapping. This is due to the fact that tapping produces an activating effect of the rubber production metabolism, as noted by Obouayeba et al (1996) and Atsin et al (2016). Indeed, tapping, by the stress it induces, activates the metabolism as well as hormonal stimulation by ethylene production (Chrestin, 1985;Atsin et al 2016).…”

Section: Resultsmentioning

confidence: 92%

Latex Micro Diagnosis, Modern Management Tool of Rubber Plantations of Clones With Active or Rapid Metabolism IRCA 18, IRCA 130, PB 235, PB 260 and PB 330

Christophe

Mathurin

Pacôme

et al. 2018

ESJ

View full text Add to dashboard Cite

The cultivated rubber clones are sensitive to latex harvesting regimes according to their laticiferous metabolism. Thus, in order to determine the best latex harvesting systems of clones with active or rapid metabolism (IRCA 18, IRCA 130, PB 235, PB 260 and PB 330), six latex harvesting technologies are applied to them in a bulk statistical device from Fisher to four rehearsals. The rubber is tapped in downward half spiral stimulated or not for nine years after the opening of the tapping panel. The agronomic parameters (production, vegetative growth), the tapping panel dryness and those of the latex micro diagnosis were evaluated. The results indicate that these clones independently of the latex harvesting system have good rubber productivity (2310 kg.ha -1 .y -1 ) with good radial vegetative growth (2.9 cm.y -1 ). Their trees show a wellbalanced physiological profile and an acceptable sensitivity to the tapping panel dryness (4.9%). However, the physiological index, the bark consumption and the sensitivity to the tapping panel dryness lead to retain the latex harvesting technologies " S/2 d3 6d/7 Pa1(1) ET2.5% 4/y and S/2 d4 6d/7 Pa1(1) ET2.5% 4/y " for the best. This index, favorably influencing the choice of technologies adapted to clones with active metabolism, contributes to the modern and efficient management of a rubber plantation.

show abstract

“…This result seems to express a positive effect of tapping on the production of rubber. This is because tapping produces an activating effect of the rubber production metabolism as Obouayeba et al (1996) and Atsin et al (2016). Indeed, the tapping, by the stress that it induces, activates the metabolism of the laticiferous in the same way as the hormonal stimulation, by ethylene production (Chrestin, 1985 andAtsin et al, 2016).…”

Section: Synthesis Of Physiological Profile and Physiologicalmentioning

confidence: 96%

Latex micro diagnosis, modern management tool of rubber plantations of clones with moderate metabolism GT 1, RRIC 100 and BPM 24

Adou¹,

Atsin²,

Jean-Lopez³

et al. 2018

J. App. Bioscience.

View full text Add to dashboard Cite

Objective: The cultivated rubber clones are sensitive to latex harvesting regimes according to their laticiferous metabolism. This study was done to determine the best latex harvesting system (s) of clones with moderate metabolism (GT 1, RRIC 100 and BPM 24). Methodology and Results: Six latex harvesting technologies were applied to these clones in a bulk statistical device from Fisher to four rehearsals. The rubber trees were tapped in downward half spiral stimulated or not, for nine years after the opening of the tapping panel. The agronomic parameters (latex production, vegetative growth), the tapping panel dryness and those of the latex micro diagnosis were evaluated. The results indicate that these clones independently of the latex harvesting system have good rubber productivity (2234 kg.ha-1 .y-1) with good radial vegetative growth (2.4 cm.y-1). Their trees showed a well-balanced physiological profile and an acceptable sensitivity to the tapping panel dryness (3.2 %). However, the physiological index, the bark consumption and the sensitivity to the tapping panel dryness lead to retain the latex harvesting technology "S/2 d4 6d/7 Pa1 (1) ET2.5% 4/y" for the best. Conclusion and application of results: This index, favourably influencing the choice of technologies adapted to clones with active metabolism, contributes to the modern and efficient management of a rubber plantation.

show abstract

Agronomic Potential of Some Rubber Tree Clones (Hevea brasiliensis) of the Fast Metabolic Activity Class in the Absence of Hormonal Stimulation in Southwestern of Côte d’Ivoire

Cited by 10 publications

References 0 publications

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

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

Latex Micro Diagnosis, Modern Management Tool of Rubber Plantations of Clones With Active or Rapid Metabolism IRCA 18, IRCA 130, PB 235, PB 260 and PB 330

Latex micro diagnosis, modern management tool of rubber plantations of clones with moderate metabolism GT 1, RRIC 100 and BPM 24

Contact Info

Product

Resources

About