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本研究对意大利水稻资源的农艺性状、杂种优势、遗传背景进行了分析。结果表明:意大利资源多是矮秆或半矮秆类型,粒型偏大,全生育期属中早熟类型。由于其在天津的适应性不佳,丰产效果差,因此不适合在本地直接应用。但意大利水稻资源的遗传背景与国内资源具有较大的差异,F1具有较强的杂种优势,是品种改良和杂种优势利用的优异亲本资源。
In this study, the agronomic traits, heterosis and genetic background of Italian rice resources were analyzed. The results showed that most of the Italian resources were dwarf or semi-dwarf, and their grain size was large, while the whole growth period was of middle-early maturity. Due to its poor adaptability in Tianjin, poor yield, it is not suitable for direct application in the local. However, the genetic background of Italian rice resources has great differences with domestic resources. F1 has strong heterosis and is an excellent parent resource for variety improvement and heterosis utilization.