水稻多基因型种群品种不同生态稻区的适应性研究  

Adaptability of Rice Multi-genotype Varieties in Different Ecological Rice Regions

作　　者：张能[1] 张露元[1] 李晓方[2] 王云月[1] Zhang Neng1, Zhang Luyuan1, Li Xiaofang2, Wang Yunyue1(1Key Laboratory for Agricultural Biodiversity for Pest Management of Ministry of Education, Yunnan Agricultural University, Kunming 650201; 2Crop Genetics and Breeding Institute and Multi-genotype Population Breeding Center, Yangtze University, Jingzhou Hubei 43402)

机构地区：[1]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,昆明650201 [2]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,湖北荆州434025

出　　处：《中国农学通报》2018年第8期1-8,共8页Chinese Agricultural Science Bulletin

基　　金：公益性行业(农业)科研专项“种群良种良法配套技术集成与综合示范”(201303008)

摘　　要：旨在探究水稻多基因型种群品种在不同生态稻区的适应性和稳定性,为多基因型种群品种的推广提供依据。选用参试品种‘尤群6号’、‘南八糯’和对照品种‘红优7号’开展田间试验,通过抗病性、农艺性状等指标进行综合评价。结果表明:参试品种‘尤群6号’(0.40~0.95 kg/m^2)和‘南八糯’(0.81~1.04 kg/m^2)在4个稻区产量显著高于对照品种(‘尤群6号’在文山地区表现除外);田间发病总体较轻,个别品种在局部试验点表现有差异,‘尤群6号’在文山稻瘟病发生(DI=48.66)和粳稻区楚雄稻曲病发生相对较重,仍需继续种植综合观察;品种生育期随试验点海拔的升高而缩短,株高随月平均气温升高而增高,品种内株高变异系数介于1.97~6.13之间。研究表明参试品种在籼粳混栽区红河表现最佳,籼稻区德宏表现较好,在文山、楚雄田间表现有待继续评价;总体上,表现出较好适应性和稳定性。The aim is to explore the adaptability and stability of multi-genotype varieties of rice in different ecological regions, and to provide a basis for promoting multi-genotype varieties. Multi-genotype variety‘ Youqun 6＇,‘Nanbanuo＇and control variety‘Hongyou 7＇were selected to conduct the field experiment. Acomprehensive evaluation for the tested varieties was carried out according to disease resistance and agronomic characters. The results showed that the yield of‘ Youqun 6＇（0.40 kg/m^2-0.95 kg/m^2） and‘Nanbanuo＇（0.81 kg/m^2-1.04 kg/m^2） were significantly higher than that of the control variety（except the performance of‘Youqun 6＇in Wenshan area）. Field disease occurred lighter overall, individual varieties showed differences in some testpoints, the rice blast of‘ Youqun 6＇in Wenshan（DI = 48.66） and the rice false smut in the japonica rice areaChuxiong were relatively heavy and the varieties still needed to be cultivated and comprehensively observed.The growth period of each variety was shortened with the increasing elevation of the test site. The plant heightincreased with the month average temperature increase. The coefficient variation of plant height within the ricevarieties was between 1.97 and 6.13. The results showed that the adaptation of the varieties in indica andjaponica mixed planting area Honghe was the best, and in indica planting area Dehong was good. The fieldperformance of the varieties in Wenshan and Chuxiong needed further evaluation. On the whole, the adaptability and stability of the tested varieties are relatively good.

关 键 词：多基因型种群品种 遗传多样性 生态稻区 适应性 稳定性 

分 类 号：S435.111.1[农业科学—农业昆虫与害虫防治]