Qualite Selective Des Parametres Physiologiques Dans La Selection Precoce De L\'hevea (&lt;i&gt;Hevea brasiliensis&lt;/i&gt; Muell Arg.)

Koffi, Kouablan Edmond; Elabo, A. A. E.; Gnagne, Y. M.

doi:10.4314/aga.v16i3.1648

Cited by 4 publications

(4 citation statements)

References 2 publications

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“…Physiological studies have shown the strong involvement of certain physiological parameters in the production of rubber (Jacob et al 1985) and, consequently, allowed the prediction of rubber production (Koffi et al 2004). The influence of these physiological parameters on the production of rubber may or may not vary from one technology of harvesting the latex to another.…”

Section: Physiological Indexmentioning

confidence: 99%

Contribution of Latex Micro Diagnosis to Modern Management of Rubber Plantations: Case of Clones With Low or Slow Metabolism PB 217 and PR 107

Christophe

Mathurin

Pacôme

et al. 2018

ESJ

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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 low or slow metabolism, 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 well-balanced 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, S/2 d4 6d/7 Pa1(1) ET2.5% 4/y and S/2 d4 6d/7 Pa1(1) ET2.5% 8/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.

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Section: Physiological Indexmentioning

confidence: 99%

Contribution of Latex Micro Diagnosis to Modern Management of Rubber Plantations: Case of Clones With Low or Slow Metabolism PB 217 and PR 107

Christophe

Mathurin

Pacôme

et al. 2018

ESJ

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“…In Ivory Coast, eleven species of Loranthaceae have been inventoried (Soro et al, 2010). In that country, Loranthaceae infect cultivated trees such as rubber trees cocoa, avocado and citrus trees (Soro et al, 2010) and they significantly reduce their production capacity (Sonké et al, 2000;Koffi, 2004). The Loranthaceae family contains 950 species distributed in 77 genera (Polhill and Wiens, 1998 (Boussim, 2002).…”

Section: Introductionmentioning

confidence: 99%

Prospects for an integrated control of Loranthaceae species parasitizing <em>Vitellaria paradoxa</em> C. F. Gaertn in Burkina Faso

Boussim¹,

Yonli²,

Medah³

et al. 2012

Int. J. Bio. Chem. Sci

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This study investigated the potential components of an integrated management of Loranthaceae species (mistletoes) which constitute a major constraint to the survival and fruit production of many trees such as Vitellaria paradoxa in West Africa. Three types of pruning, five doses of each of two herbicides and host resistance were evaluated in mistletoe-infested parklands. Natural enemies were surveyed with a view to biological control. Pruning of the host branch along with the parasite's haustorium (endophytic system) led to the total elimination of the parasite. When the endophytic system was spared, the time of pruning and species of parasite significantly influenced the number of sprout stalks per tuff. Their interaction was also significant. Death of at least 80% of treated Loranthaceae tufts was recorded for doses of 15 g l -1 of glyphosate and 20 g l -1of 2,4-D. The artificial infestation of stands with parasite seeds revealed the likely existence of genetic resistance to mistletoe in V. paradoxa. The agroforestry parkland survey showed that birds, chiefly Pogoniulus chrysonocus, and insects are potential natural enemies of Loranthaceae. Results showed that Loranthaceae control could be achieved with techniques already used to successfully manage weeds. However, there is need to improve control components and their integration to successfully manage mistletoes in Burkina Faso.

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“…Physiological studies have shown the strong involvement of few physiological parameters in the production of rubber (Jacob et al 1985) and, consequently, allowed the prediction of rubber production (Koffi et al 2004). The influence of these physiological parameters on the production of rubber could vary from one technology of harvesting the latex to another.…”

Section: Physiological Indexmentioning

confidence: 99%

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

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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.

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Qualite Selective Des Parametres Physiologiques Dans La Selection Precoce De L\'hevea (<i>Hevea brasiliensis</i> Muell Arg.)

Cited by 4 publications

References 2 publications

Contribution of Latex Micro Diagnosis to Modern Management of Rubber Plantations: Case of Clones With Low or Slow Metabolism PB 217 and PR 107

Contribution of Latex Micro Diagnosis to Modern Management of Rubber Plantations: Case of Clones With Low or Slow Metabolism PB 217 and PR 107

Prospects for an integrated control of Loranthaceae species parasitizing <em>Vitellaria paradoxa</em> C. F. Gaertn in Burkina Faso

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

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