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首页> 外文期刊>Crop Research >Comparative assessment of three rice genotypes as donor materials for durable resistance to rice yellow mottle virus (RYMV) infection on rice (Oryza sativa L.).
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Comparative assessment of three rice genotypes as donor materials for durable resistance to rice yellow mottle virus (RYMV) infection on rice (Oryza sativa L.).

机译：三种水稻基因型作为供体材料对水稻对稻黄斑驳病毒（RYMV）的持久抗性的比较评估。

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摘要

Moroberekan, Gigante and CG-14 known for their levels of resistance to rice yellow mottle virus (RYMV) (Abo et al., 2001) were used in an experiment to evaluate the agronomic features and hence, the comparative suitability of these rice varieties as choice donor materials for durable resistance on rice cultivars against RYMV infection. The virus was introduced at an active tillering stage (40 days after planting) of the plants. Moroberekan and CG-14 were the resistant japonica types, whereas Gigante was a resistant indica type, and FARO 29 - a susceptible indica type was included as a check. The result of statistical analysis indicated significant mean effect (P=0.05) of rice variety treatment on all measured growth parameters as well as, a highly significant effect (P=0.01) of virus treatment means on plant height (cm) at maturity. Rice variety and virus treatment means produced effect that was significant (P=0.05) on all measured yield parameters and also indicated an interaction effect of the two factors on plant height (cm), the number of grains per panicle as well as per cent spikelets fertility per plant. Moroberekan recorded the highest grain weight value (28.48 g), which was significantly (P=0.05) higher than mean values recorded by other rice varieties. However, based on the total number of grains per plant at harvest as well as per cent spikelets fertility per plant, the best rice varieties included the indica type - Gigante, which recorded mean number of grain of 80.83 per panicle at harvest.
机译：在实验中使用Moroberekan，Gigante和CG-14（它们对稻黄斑驳病毒（RYMV）的抗性水平）而闻名（Abo等，2001），用于评估农艺性状，因此，这些水稻品种作为供体材料对水稻品种对RYMV感染具有持久抗性的比较适用性。该病毒是在植物的活跃分plant期（种植后40天）引入的。 Moroberekan和CG-14是抗性的 japonica 类型，而Gigante是抗性的 indica 类型，其中还包括FARO 29-易感的 indica 类型作为支票。统计分析的结果表明，水稻品种处理对所有测得的生长参数具有显着的平均影响（P = 0.05），而病毒处理手段对水稻成熟期的株高（cm）的显着影响（P = 0.01）。水稻品种和病毒处理手段对所有测得的产量参数产生显着影响（P = 0.05），并且还表明这两个因素对株高（cm），每穗粒数和小穗百分比的相互作用每棵植物的肥力。 Moroberekan记录的最高谷粒重量值（28.48 g），明显高于其他水稻品种的平均值（P = 0.05）。但是，根据收获时每株植物的总谷粒数和每株植物的小穗百分率，最好的水稻品种包括 indica 型-Gigante，记录的平均谷粒数为80.83 /株。穗收获。

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