A participatory breeding initiative for resilient rubber cultivation systems for smallholders in a context of global change

Penot, Éric; Utami, Arini Wahyu; Purwestri, Yekti Asih; Wibawa, Gede; Aguilar, Edna A.; Somboonsuk, Buncha; Aris, Mohd Nasaruddin Moh; Widiyatno,; Wijaya, Thomas; Suparno, Budiadi; Shinta, Agustina Dwi; Chambon, Bénédicte; Alam, Taufan; Gitz, Vincent; Subandiyah, Siti; Montoro, Pascal; Oktavia, Fetrine; Noordwijk, Meine van; Wu, Jianping

doi:10.1051/e3sconf/202130501001

Cited by 2 publications

(2 citation statements)

References 27 publications

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“…The mapped area of rubber is imperfect and includes errors of omission and commission. The area estimate is a statistical measure derived from validation points that aims to provide the actual area along with (objective) confidence intervals 3 . Reflecting our concerns, we attempted to review these estimates for the eight countries based on our own validation points (Table 1).…”

Section: Preprintsmentioning

confidence: 99%

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Rubber Planting and Deforestation<strong> </strong>

Sheil,

Descals,

Meijaard

et al. 2024

Preprint

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Wang et al. (Nature 623, 340—350; 2023)1 used satellite observations and phenological signatures to estimate the extent of planted rubber (Hevea brasiliensis Müll.Arg.) and associated deforestation for eight Southeast Asian countries. Their map implies that planted rubber has caused more than 4 Mha of deforestation since 1993 — a value greater than previously assumed. Unfortunately, their approach was flawed. Our assessment indicates that the actual extent of planted rubber is approximately half that reported by Wang et al., while the extent of associated deforestation is approximately one quarter.

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Section: Preprintsmentioning

confidence: 99%

“…Unlike Wang et al, we included 'nonforest', as these areas must also be reflected in accuracy and area estimates. We also distinguished rubber monoculture from 'Jungle rubber' (mixed species multistrata agroforest), which by area includes most of the rubber planted in the region, particularly in Indonesia and Thailand [3].…”

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confidence: 99%

Rubber Planting and Deforestation<strong> </strong>

Sheil,

Descals,

Meijaard

et al. 2024

Preprint

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Rubber-Based Agroforestry Systems Associated with Food Crops: A Solution for Sustainable Rubber and Food Production?

Cahyo,

Dong,

Taryono

et al. 2024

Agriculture

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Agroforestry is often seen as a sustainable land-use system for agricultural production providing ecosystem services. Intercropping with food crops leads to equal or higher productivity than monoculture and results in food production for industry and subsistence. Low rubber price and low labor productivity in smallholdings have led to a dramatic conversion of rubber plantations to more profitable crops. The literature analysis performed in this paper aimed at better understanding the ins and outs that could make rubber-based agroforestry more attractive for farmers. A comprehensive search of references was conducted in March 2023 using several international databases and search engines. A Zotero library was set up consisting of 415 scientific references. Each reference was carefully read and tagged in several categories: cropping system, country, main tree species, intercrop type, intercrop product, level of product use, discipline of the study, research topic, and intercrop species. Of the 232 journal articles, 141 studies were carried out on rubber agroforestry. Since 2011, the number of studies per year has increased. Studies on rubber-based agroforestry systems are performed in most rubber-producing countries, in particular in Indonesia, Thailand, China, and Brazil. These studies focus more or less equally on perennials (forest species and fruit trees), annual intercrops, and mixed plantations. Of the 47 annual crops associated with rubber in the literature, 20 studies dealt with rice, maize, banana, and cassava. Agronomy is the main discipline in the literature followed by socio-economy and then ecology. Only four papers are devoted to plant physiology and breeding. The Discussion Section has attempted to analyze the evolution of rubber agroforestry research, progress in the selection of food crop varieties adapted to agroforestry systems, and to draw some recommendations for rubber-based agroforestry systems associated with food crops.

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A participatory breeding initiative for resilient rubber cultivation systems for smallholders in a context of global change

Cited by 2 publications

References 27 publications

Rubber Planting and Deforestation<strong> </strong>

Rubber Planting and Deforestation<strong> </strong>

Rubber-Based Agroforestry Systems Associated with Food Crops: A Solution for Sustainable Rubber and Food Production?

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