ارزیابی عملکرد و اجزای عملکرد برنج رقم هاشمی در انواع روشهای کشت مستقیم و نشایی

In other to compare the grain yield and yield component of Hashemi rice cultivar in different methods of direct seeding and transplanting, an experiment was conducted in 2010 in randomized complete block design basis with three replication and three seeding methods in rice research institute of Iran, Rasht. The seeding methods were drum- direct seeding, hill wet seeding, broadcasting of pre-germinated seeds in puddle fields and transplanting seedling of 3-4 leaf age as a control. The results indicate that, there are significant differences among different methods of direct seeding and transplanting in plant height, number of filled grains.panicle-1and grain yield. Mean comparison indicated that the maximum Plant height (148.8 cm), number of filled grains (84) and grain yield (3828.2 kg.ha-1) were obtained in transplanting method. Among different methods of direct seeding the maximum grain yield (2703.7 kg.ha-1) was obtained in hill wet seeding in puddle fields.
According to the results, it seems in most of the traits, transplanting method was more advantageous compared to direct seeding and it is possible to obtain an acceptable grain yield in Hashemi rice cultivar using hill wet direct seeding method in puddle fields in climatic condition of the experimental region.
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