Adoption of Stress-Tolerant Rice Varieties in Bangladesh

Ahmed, Akhter U.; Hernández, Ricardo; Naher, Firdousi

doi:10.1007/978-3-319-25718-1_15

Cited by 20 publications

(13 citation statements)

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“…Since large landholding guarantees food security, farmers are willing to allocate parts of their farmlands for long-term investments such as AFS [55]. Ahmed et al [56] argue that farmers with more farmland are less risk-averse, and therefore tend to and are more willing to try new technologies. In the case of ACS, land allocation is not required since the trees are grown on farm bunds.…”

Section: Discussionmentioning

confidence: 99%

“…Off-farm source of income acts as a safety net and helps solve the cash constraints of the farm households, thus inducing them to perform long-term investments, which are expected to yield higher returns in the future [59]. Financial security backs them up to take risks and they tend to try technologies such as agroforest/woodlot [56]. Studies from Swaziland [60] and Indonesia [61] are some examples supporting the hypothesis that off-farm sources of income positively influence agroforestry adoption.…”

Section: Discussionmentioning

confidence: 99%

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Who Adopts Agroforestry in a Subsistence Economy?—Lessons from the Terai of Nepal

Dhakal¹,

Kumar²

2020

Forests

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Agroforestry is recognized as a sustainable land use practice. However, the uptake of such a promising land use practice is slow. Through this research, carried out in a Terai district of Nepal, we thoroughly examine what influences farmers’ choice of agroforestry adoption and what discourages the adoption. For this, a total of 288 households were surveyed using a structured questionnaire. Two agroforestry practices were compared with conventional agriculture with the help of the Multinomial Logistic Regression (MNL) model. The likelihood of adoption was found to be influenced by gender: the male-headed households were more likely to adopt the tree-based farming practice. Having a source of off-farm income was positively associated with the adoption decision of farmers. Area of farmland was found as the major constraint to agroforestry adoption for smallholder farmers. Some other variables that affected positively included livestock herd size, provision of extension service, home-to- forest distance, farmers’ group membership and awareness of farmers about environmental benefits of agroforestry. Irrigation was another adoption constraint that the study area farmers were faced with. The households with a means of transport and with a larger family (household) size were found to be reluctant regarding agroforestry adoption. A collective farming practice could be a strategy to engage the smallholder farmers in agroforestry.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Who Adopts Agroforestry in a Subsistence Economy?—Lessons from the Terai of Nepal

Dhakal¹,

Kumar²

2020

Forests

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“…This preference is undoubtedly related in part to their good grain quality, premium prices, satisfactory grain yield, and lodging resistance. On the other hand, this might point to shortcomings in the seed system: (i) the inability of the research system to develop new varieties with traits superior to those of the existing ones that would incentivize farmers and millers to change 30 , 34 , 35 , (ii) the low availability of the good quality BMV seeds 34 , 36 , (iii) the extension system often did not target millers and input dealers 34 , and (iv) the inefficient extension system that fails to get new releases to the farmers in a targeted manner 34 . With more than 15% of the total identified samples, aromatic TVs are widely grown during aman.…”

Section: Discussionmentioning

confidence: 99%

DNA fingerprinting at farm level maps rice biodiversity across Bangladesh and reveals regional varietal preferences

Kretzschmar

Mbanjo

Magalit

et al. 2018

Sci Rep

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The development, dissemination, and adoption of improved rice varieties are imperative for global food and nutritional security. Knowledge of the crop’s distribution across agro-ecologies is important for impact assessment studies, varietal replacement strategies, and the development and implementation of agricultural policies. Bangladesh is the world’s 4th largest rice producer. Though traditional varieties (TVs) are abundant and valued throughout Bangladesh, population growth and vulnerability to climate change, necessitate efficient deployment of high-yielding stress-tolerant modern varieties (MVs). To aid agricultural policy and strategy this study aimed to accurately assess the distribution of MVs and TVs across Bangladesh during the rainfed rice-growing season. Information derived from a survey of rice production areas were compared and combined with DNA fingerprinting information from the same locations. Biodiversity of Bangladesh rice remained high. While TVs and first generation MVs of Bangladeshi and Indian origin were still commonly grown, recently released stress-tolerant MVs were adopted in large proportions in several districts. Although farmers successfully distinguished TVs from MVs grown in their fields, a considerable lack of authenticity among MVs was observed, pinpointing shortcomings in the seed supply chain. This study identifies focal points for extension work and validates DNA fingerprinting as reliable method for impact assessment studies.

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“…Therefore, production of cultivars with both high yield potential and tolerant to drought are key objectives of the rice breeding program. Until today, many drought tolerant rice cultivars have been introduced for increasing productivity per unit area under drought as well as normal conditions, such as BRRI Dhan-56 and -57 (Bangladesh), Hanhui3T (China), Sahbhagi dhan (India), Sukha dhan-1, -2 and -3 (Nepal), Sahod ulan-3 and Katihan-8 (Philippines), and MRIA1, MNR151 and MNR152 (Malaysia) (Ahmed et al 2016;Li et al 2018;Sobri et al 2020). Hence, this study was carried out to understand the changes in root and other morphophysiological traits induced by irrigation interval and to determine the most important criteria for effective selection of drought tolerant rice genotypes.…”

Section: Introductionmentioning

confidence: 99%

Root Traits Responses to Irrigation Intervals in Rice (Oryza sativa)

Gaballah¹

2021

IJAB

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Drought is one of major abiotic stresses that effect rice production. Roots play vital role in absorption of water and nutrients from soil contributing for drought tolerance. The present study quantified the effects of different irrigation intervals on root development and agronomical traits of three Egyptian rice cultivars, Giza177, Giza178, Sakha107, IET1444 as a popular drought tolerant and Moroberekan as control genotype. Irrigation treatments were imposed 15 days after transplanting and applied for every 4, 8 and 12 days during 2018 and 2019 rice growing seasons. The results showed the reduction in root architecture traits with prolonged irrigation intervals. A significant decrease in plant height, number of panicles plant-1, grain yield (t ha-1) and relative water content, while sterility (%) and water use efficiency significantly increased over irrigation intervals. The highly significant and positive correlation was found among grain yield and root:shoot ratio, relative water content and number of panicles plant-1, while the negative correlation was with root xylem vessel number and sterility. It was concluded that, the drought reduced the grain yield and its components due to poor developed root system. Moroberekan and IET1444 genotypes can be used as a donor parent for rice breeding program. Further studies are also required to identify factors that contribute to the high yield potential of both Giza178 and Sakha107 under different water stress condition. © 2021 Friends Science Publishers

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Adoption of Stress-Tolerant Rice Varieties in Bangladesh

Cited by 20 publications

References 1 publication

Who Adopts Agroforestry in a Subsistence Economy?—Lessons from the Terai of Nepal

Who Adopts Agroforestry in a Subsistence Economy?—Lessons from the Terai of Nepal

DNA fingerprinting at farm level maps rice biodiversity across Bangladesh and reveals regional varietal preferences

Root Traits Responses to Irrigation Intervals in Rice (Oryza sativa)

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