Comparative Study on the Seed Health of Five Commonly Cultivated Wheat Varieties (Triticum aestivum L.) in Nepal

Seed-borne pathogens can negatively affect wheat crop germination, plant health, and yield, making it essential to routinely test and treat seeds. Therefore, identifying seed-borne pathogens in commonly cultivated wheat varieties is vital to ensuring sustainable food production. The study sought at the Central Agriculture Laboratory in Lalitpur, Nepal, aimed to identify seed-borne pathogens in five commonly cultivated wheat varieties and evaluate their seed health. The study utilized the Standard Blotter Method to assess various parameters, including germination percentage, pathogen incidence percentage, shoot length, and seedling vigor index, in a controlled environment. The experiment used a complete randomized design with four replications and five treatments. Five wheat varieties (Gautam, Aaditya, Bijaya, Dhaulagiri, and NL971) were sown in Petri dishes containing blotting paper wetted with sterilized distilled water to assess the incidence and severity of Bipolaris sorokiniana. The data obtained were tabulated in Microsoft Excel and analyzed using Gen Stat. The study found that Gautam had the highest Bipolaris infection (18.25%), while NL971 had the lowest (11.25%), followed by Bijaya, Dhaulagiri, and Aaditya. Dhaulagiri had the highest germination percentage (99.50%), followed by Aaditya, Bijaya, and NL971, while Gautam had the lowest (79%). Aaditya demonstrated the highest shoot and root weight, shoot length, and seedling vigor index, while Gautam had the lowest. The study concluded that Gautam was vulnerable to low seed health, while Aaditya and other varieties demonstrated stronger seed health and resistance to the pathogen. These findings are crucial for improving seed health and ensuring sustainable food production in Nepal

Services in a development round : three goals and three proposals

The benefits of services trade reform are huge but services negotiations in the World Trade Organization (WTO) are making little progress. A proximate cause is the current negotiating process, based on an inertial request-and-offer approach rather than a set of goals that would give direction and momentum to the negotiations. The paper suggests that WTO members should consider: (1) locking in the current openness of cross-border trade for a wide range of services; (2) eliminating barriers to foreign investment either immediately or in a phased manner where regulatory inadequacies need to be remedied; and (3) allowing greater freedom of international movement at least for intra-corporate transferees and for service providers to fulfill specific services contracts. A deeper problem is that WTO members have sought to negotiate market access in services without adequately addressing concerns that the General Agreement on Trade in Services (GATS) commitments limit regulatory freedom unduly and unpredictably, that regulatory institutions in many countries are too weak to cope with liberalized markets, and that there is no provision for the regulatory cooperation that is necessary for successful liberalization, particularly of temporary labor mobility. Three types of actions are needed: (1) at the current stage of its development, theGATS must focus primarily on disciplines for measures that discriminate against foreign services and providers, rather than on politically sensitive and legally complex rules for nondiscriminatory measures; (2) a credible assistance mechanism must be established to help developing countries make the regulatory improvements needed for successful liberalization; and (3) where necessary, WTO members should make access commitments on labor mobility conditional on the fulfillment of specific conditions by source countries-to screen services providers, accept and facilitate their return, and combat illegal migration.Trade and Services,TF054105-DONOR FUNDED OPERATION ADMINISTRATION FEE INCOME AND EXPENSE ACCOUNT,Trade and Regional Integration,Governance Indicators,ICT Policy and Strategies

On the power of conditional independence testing under model-X

For testing conditional independence (CI) of a response Y and a predictor X given covariates Z, the recently introduced model-X (MX) framework has been the subject of active methodological research, especially in the context of MX knockoffs and their successful application to genome-wide association studies. In this paper, we study the power of MX CI tests, yielding quantitative explanations for empirically observed phenomena and novel insights to guide the design of MX methodology. We show that any valid MX CI test must also be valid conditionally on Y and Z; this conditioning allows us to reformulate the problem as testing a point null hypothesis involving the conditional distribution of X. The Neyman-Pearson lemma then implies that the conditional randomization test (CRT) based on a likelihood statistic is the most powerful MX CI test against a point alternative. We also obtain a related optimality result for MX knockoffs. Switching to an asymptotic framework with arbitrarily growing covariate dimension, we derive an expression for the limiting power of the CRT against local semiparametric alternatives in terms of the prediction error of the machine learning algorithm on which its test statistic is based. Finally, we exhibit a resampling-free test with uniform asymptotic Type-I error control under the assumption that only the first two moments of X given Z are known, a significant relaxation of the MX assumption

China's accession to the World Trade Organization - The services dimension

China's General Agreement on Trade in Services (GATS) commitments represent the most radical services reform program negotiated in the World Trade Organization. China has promised to eliminate over the next few years most restrictions on foreign entry and ownership, as well as most forms of discrimination against foreign firms. These changes are in themselves desirable. However, realizing the gains from, and perhaps even the sustainability of, liberalization will require the implementation of complementary regulatory reform and the appropriate sequencing of reforms. Three issues, in particular, merit attention: 1) Initial restrictions on the geographical scope of services liberalization could encourage the further agglomeration of economic activity in certain regions-to an extent that is unlikely to be reversed completely by subsequent countrywide liberalization. 2) Restrictions on foreign ownership (temporary in most sectors but more durable in telecommunications and life insurance) may dampen the incentives of foreign investors to improve firm performance. 2) Improved prudential regulation and measures to deal with the large burden of non-performing loans on state banks are necessary to deliver the benefits of liberalization in financial services. And in basic telecommunications and other network-based services, meaningful liberalization will be difficult to achieve without strengthened pro-competitive regulation.Payment Systems&Infrastructure,Public Sector Economics&Finance,ICT Policy and Strategies,Banks&Banking Reform,Environmental Economics&Policies,Trade and Services,ICT Policy and Strategies,Banks&Banking Reform,Public Sector Economics&Finance,Health Economics&Finance