水稻多基因型种群品种田间抗病丰产试验

发布时间：2018-07-25 16:38

【摘要】：【目的】评价水稻多基因型种群品种在云南省德宏地区的适应性、抗病性和丰产性,为水稻多基因型种群品种在云南的推广应用和丰富云南农田农业生物多样性提供科学依据。【方法】2015年用尤群6号、南八糯、多集新15号、多集新16号、广多18号和广尤1号共6个水稻多基因型种群品种,以单一基因型优质高产籼稻品种红优7号为对照,在云南省籼稻区德宏州芒市开展田间品种比较试验,通过生育期、抗病性、农艺性状、产量等指标对参试品种进行综合评价。【结果】多基因型种群品种的田间稻瘟病病情指数为0.41~2.49,属于轻发生和偏轻发生;稻曲病病情指数为3.23~7.62,属于偏轻发生;田间未发生白叶枯病。品种群体内株高变异系数较小,介于3.25~4.56,农艺性状一致。参试品种产量为9459.0~10960.5 kg/ha,显著高于对照品种(P0.05)。【结论】供试6个水稻多基因型种群品种在云南籼稻区德宏田间整齐度好,农艺性状稳定,适应性强,表现出较好的抗病性、丰产性和稳定性,适宜在云南德宏地区推广种植。
[Abstract]:[objective] to evaluate the adaptability, disease resistance and high yield of rice varieties with multiple genotypes in Dehong, Yunnan Province, China. To provide scientific basis for the popularization and application of rice multi-genotypic population in Yunnan and to enrich agricultural biodiversity in Yunnan. [methods] Yucun 6, Nanbanuo, Duojinxin 15, Duojin16 were used in 2015. There were 6 rice varieties with multiple genotypes in Guangduo 18 and Guangyou 1. The single genotype high yield indica rice variety Hongyou 7 was used as the control, and the field variety comparison experiment was carried out in Dehong City, Yunnan Province, through the growth period. Resistance to disease, agronomic characters and yield were comprehensively evaluated. [results] the disease index of rice blast of multi-genotypic population was 0.41n2.49, which belonged to light occurrence and milder occurrence, while the disease index of rice aspergillus was 3.237.62, which belonged to light occurrence. No bacterial blight occurred in the field. The coefficient of variation of plant height in variety population was small, between 3.25 and 4.56, and the agronomic characters were the same. The yield of the tested varieties was 9459.00.10960.5 kg / ha, which was significantly higher than that of the control (P0.05). [conclusion] the six rice multi-genotype populations had good field uniformity, stable agronomic characters, strong adaptability and good disease resistance in Dehong, Yunnan indica rice region. High yield and stability, suitable for planting in Dehong, Yunnan Province.
【作者单位】：云南农业大学教育部农业生物多样性与病虫害控制重点实验室;德宏州农业技术推广中心;长江大学作物遗传育种研究所暨农作物多基因型种群育种技术中心;
【基金】：公益性行业(农业)科研专项项目(201303008)
【分类号】：S511

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