This chapter builds on the household model presented in Chapter 5 [Missing markets, migration and crop biodiversity in the milpa system of Mexico: a household-farm model, by van Dusen, M. E., pp. 63-77] by exploring the role of social institutions in household access to planting material and use of crop biodiversity. Two types of institutions are analysed: (i) local community groups to which a household may belong and (ii) sources of planting material and agricultural information. Findings from a household survey implemented in two districts of Samarqand, Uzbekistan, provide a description of the diversity of fruits and nut trees, as well as the nature of systems for planting material. Econometric analysis reveals a linkage between participation in community groups and the levels of fruit and nut tree diversity managed by households. No relationship is found between the type of institution used to obtain genetic material and the level of diversity in orchards. Household participation in community groups influences the type of institution used for access to genetic material, however.
According to FAOSTAT, in 2018-2019 rice was planted in 118 countries on an area of 167 million hectares, the annual grain production in the world is about 782 million tons. Rice is the most popular cereal in the diet of the Russian consumer. Rice growing is a small but rather important branch of the agro-industrial complex of the Russian Federation. The main rice producers in the world are China (over 214 million tons), India (over 172 million tons), Indonesia (83 million tons), Bangladesh (56 million tons), Vietnam (44 million tons), Thailand (32 million tons) and Myanmar (25 million tons). In the Russian Federation, rice is grown in three federal districts, in nine subjects: in the Southern Federal District - the Republic of Adygea, Kalmykia, Krasnodar, Astrakhan and Rostov Regions; North Caucasian Federal District - Republics of Dagestan and Chechen; Far Eastern Federal District - Primorsky Territory and the Jewish Autonomous Region. Scientific support of the rice-growing industry in the Russian Federation is carried out by the Federal Scientific Rice Centre.
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