Related items
Showing items related by metadata.
-
DocumentOther documentPropagation and growth from seeds and root segment cuttings of fruit tree-plus Diospyros mespiliformis (Ebenaceae) in Benin West Africa
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.The aim of the present experiment was to assess effectiveness of selected propagation methods, early nursery and field performance of D. mespiliformis (Ebenaceae). For instance, effects of seed pretreatment/root segment cuttings diameter, provenance and soil types on germination and growth vigor of the species was investigated using 144 seeds/root segment; laid in 500 g of three different soil types and soaked/planted in polyethylene bags replicated four times in three treatments and laid in 4×3×3 factorial Completely Randomized Design. Emergence of radicle (days), Seedlings/Shoot Height (cm), number of leaves, and Percentage survival were recorded two weekly for a period of 7 months. Time to event seed germination/shooting data analysis, ANOVA two ways and Generalized Mixed effects Model were used to assess effects of origin, pre treatment/diameter and soil types on germination, shooting and growth of Diospyros mespiliformis. Results indicated that propagation of the species can best be done through seeds and root cuttings. The essay revealed that seeds from woodland, savannah and parkland, sowed in compost and clay and pre treated (boiled water, tegument removed) had the highest germination percentage (69.9-86.67 %), while seeds in the control (no treatment, Inundated Forest and sandy) had very low germination of 17-35 %. No seed treatment showed deficiency in the survival and germination of the seeds of Diospyros mespiliformis, while borehole water aided the survival and bring back early (rapid) germination. Regarding RSC, leafy shoots formed percentage varied from 0 % in river sand to 64.6% in clay and compost substrate after 12 weeks. Results reveal also that among the three classes of diameter, shooting height decreases from clay to sandy while the same variable move in inverse order regarding RSC origin. Keywords: Adaptive and integrated management, Biodiversity conservation, Genetic resources, Research, Sustainable forest management ID: 3477094 -
DocumentOther documentEffect of serial harvesting of shoots on rooting ability of teak clones
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Rejuvenation of shoots through budding and serial harvesting was carried out to produce shoots for rooted cutting of 106 teak clones. 3-month-old budded seedlings were topped and leaf pruned to stimulate secondary shoots that used for rooted cutting. 1-month old secondary shoots were harvested and rooted cutting in non-mist propagators. Number of shoots per stock and rooting ability of each clone were recorded for 6 consequences shoot harvesting at 2 weeks interval. 1 month after propagating showed that rooting ability were high significantly (Pr(>F) = 0.489) difference among clones. 35 clones had high rooting ability averaged more than 60 percent, 56 clones had 40-60 percent, while 15 clones had less than 40 percent. Number of shoots per stock and rooting ability were high significantly affected by order of consequence shoot harvesting. Average number of shoots per stock were 0.85, 0.87, 0.74, 0.88, 0.70 and 0.60 shoots (not every stock plant produce shoot in every harvesting round) while rooting ability were 54.01, 44.37, 19.68, 63.87, 81.90 and 73.63 percent for 1st to 6th shoot harvesting respectively. Number of shoots per stock increased from 1st until 4th cut and then decreased when 5th and 6th cut. Later harvesting trended to increase rooting ability. Keywords: Teak, serial harvesting of shoots, rooted cutting, Rejuvenation, clone ID: 3486299 -
ArticleJournal articleMass propagation of a Dendrocalamus asper through seedling macroproliferation for large-scale plantation programs
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Dendrocalamus asper is a thick walled edible bamboo species with diversified industrial uses. Vegetative propagation trough culm, rhizome or branch cutting is difficult due to inadequate numbers. Tissue culture requires sophisticated labs, expensive procedure and impractical in many areas of the world. Upon availability, seed germination and seedling macroproliferation could be very simple, inexpensive and advantageous for bamboo propagation which start the physiological age from zero. Current study was therefore carried out over a period of two year from March 2017 to February 2019 to explore the regeneration potentials of D. asper through seed germination and seedling macro-proliferation. Intact or deglumed seeds were soaked in water for 0h, 24h or 48h and sown in pots filled with soil and cow dung under nursery shed (T1) and intact seeds soaked in water mixed with fungicide for 24h were sown in perforated plastic tray filled with soil and cow dung in greenhouse condition (T2) for germination. The fastest germination (7 days) and maximum germination percent (60.3) was in deglumed seeds soaked in water for 24h followed by 40.27% in the same seeds soaked for 48h in T1. Seedlings developed through various pre-sowing treatments were with 4-9 tillers each and macroproliferated six months after germination and grown for another six month for second cycle proliferation. Through macroproliferation, average number of propagules produced were 4 and 8.2 in first cycle and second cycle respectively. Thus 32.8 number of planting materials were produced from a single seedling within one and half year period of time which could be 289.8 through third cycle proliferation at the end of two years. Survival rate of macroproliferated propagules was 86.6% one month after transferring them in the sun. Propagule were ready for third cycle macroproloferation (with 9.06 number of tillers again in each propagule) six months or for planting nine months after the second cycle of macroproliferation. Findings of this study could be a basis for further study and for re-greening the earth for better resilience to climate change adaptations. Keywords: Edible bamboo, deglume seeds, Dendrocalamus asper, seed germination, seedling macroproliferation. ID: 3476549
Users also downloaded
Showing related downloaded files
-
Book (stand-alone)Technical bookRussian Federation: Meat sector review
Country highlights prepared under the FAO/EBRD Cooperation
2014Also available in:
World food demand has seen massive changes, including a shift from staple foods to animal proteins and vegetable oils. In the short to medium term, this trend in global food demand will continue. There will be an increased demand for vegetable oils, meat, sugar, dairy products and livestock feed made from coarse grains and oilseed meals. There are numerous mid-term forecasts for the Russian Federation’s meat sector. Most of them agree on the following trends: (i) the consumption of poultry and p ork meat will increase; (ii) the consumption of beef will decrease or stabilize; and (iii) the Russian Federation will remain a net importer of meat on the world market. According to OECD and FAO projections, meat imports from the Russian Federation will decrease from 3 to 1.3 million tonnes, owing to an anticipated growth in domestic chicken meat and pork production. The country’s share in global meat imports is anticipated to decrease from 12 percent in 2006–2010, to 4 percent in 2021. While t he Russian Federation will continue to play an important role in the international meat market, it will fall from its position as the largest meat importing country in 2006–2010 to the fourth largest global meat importer by 2021, behind Japan, sub-Saharan African countries, and Saudi Arabia. -
BookletHigh-profileFAO Strategy on Climate Change 2022–2031 2022The FAO Strategy on Climate Change 2022–2031 was endorsed by FAO Council in June 2022. This new strategy replaces the previous strategy from 2017 to better FAO's climate action with the Strategic Framework 2022-2031, and other FAO strategies that have been developed since then. The Strategy was elaborated following an inclusive process of consultation with FAO Members, FAO staff from headquarters and decentralized offices, as well as external partners. It articulates FAO's vision for agrifood systems by 2050, around three main pillars of action: at global and regional level, at country level, and at local level. The Strategy also encourages key guiding principles for action, such as science and innovation, inclusiveness, partnerships, and access to finance.
-
Book (series)FlagshipThe State of Food Security and Nutrition in the World 2021
Transforming food systems for food security, improved nutrition and affordable healthy diets for all
2021In recent years, several major drivers have put the world off track to ending world hunger and malnutrition in all its forms by 2030. The challenges have grown with the COVID-19 pandemic and related containment measures. This report presents the first global assessment of food insecurity and malnutrition for 2020 and offers some indication of what hunger might look like by 2030 in a scenario further complicated by the enduring effects of the COVID-19 pandemic. It also includes new estimates of the cost and affordability of healthy diets, which provide an important link between the food security and nutrition indicators and the analysis of their trends. Altogether, the report highlights the need for a deeper reflection on how to better address the global food security and nutrition situation.To understand how hunger and malnutrition have reached these critical levels, this report draws on the analyses of the past four editions, which have produced a vast, evidence-based body of knowledge of the major drivers behind the recent changes in food security and nutrition. These drivers, which are increasing in frequency and intensity, include conflicts, climate variability and extremes, and economic slowdowns and downturns – all exacerbated by the underlying causes of poverty and very high and persistent levels of inequality. In addition, millions of people around the world suffer from food insecurity and different forms of malnutrition because they cannot afford the cost of healthy diets. From a synthesized understanding of this knowledge, updates and additional analyses are generated to create a holistic view of the combined effects of these drivers, both on each other and on food systems, and how they negatively affect food security and nutrition around the world.In turn, the evidence informs an in-depth look at how to move from silo solutions to integrated food systems solutions. In this regard, the report proposes transformative pathways that specifically address the challenges posed by the major drivers, also highlighting the types of policy and investment portfolios required to transform food systems for food security, improved nutrition, and affordable healthy diets for all. The report observes that, while the pandemic has caused major setbacks, there is much to be learned from the vulnerabilities and inequalities it has laid bare. If taken to heart, these new insights and wisdom can help get the world back on track towards the goal of ending hunger, food insecurity, and malnutrition in all its forms.