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在大田自然干旱条件下,对从中国农科院作物研究所引进的6个耐旱水稻品种在来宾市兴宾区、武宣县同时进行品种对比试验。结果表明,不同品种的耐旱性和抗病力有一定差异,其中P116在两个试验点的产量表现最稳定,各产量构成因素、耐旱性均表现较好,其穗颈瘟的感染率也较低,建议扩大试验示范并逐步在干旱地区推广种植;P175在所有参试品种中耐旱性表现最强,在受旱程度较严重的兴宾区试验点产量表现最高,其穗颈瘟的感染率也较低,建议在干旱地区进一步试验示范,并逐步扩大推广种植;P117在武宣县试验点产量表现最高,在兴宾区试验点也比对照增产,但该品种对穗颈瘟抗性较差,是所有参试品种中穗颈瘟感染率最高的品种,建议在非稻瘟病区作进一步试验和示范。
Under drought conditions in the field, six varieties of drought-tolerant rice introduced from Crop Research Institute of Chinese Academy of Agricultural Sciences were tested in Xingbin and Wuxuan counties of Laibin at the same time. The results showed that there was a certain difference between drought tolerance and disease resistance of different cultivars. The yield of P116 was the most stable in the two experimental sites, and the yield components and drought tolerance of P116 all performed better. The infection rate of panicle blast It is also suggested to extend the experimental demonstration and popularize plantation gradually in arid areas. P175 has the strongest drought tolerance in all the tested varieties, and has the highest yield in the test area of Xingbin District, where the degree of drought is serious. The panicle blast The infection rate is also lower, it is recommended to further test and demonstration in arid areas, and gradually expand the promotion of planting; P117 in Wuxuan County, the highest yield test points in the Xingbin test points than the control yield, but the varieties of panicle blast antigen It is suggested that further testing and demonstration should be conducted in non-blast areas.