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以3个不同籼粳类型光温敏核不育系N95076S(粳型)、培矮64S和蜀光612S(籼型)为测验系,分别与来自云南不同海拔的15个籼粳类型育成种和恢复系按NCⅡ配制出45个F1(3×15)杂交组合。在云南省石屏县(海拔1 000 m,籼稻区)、弥勒县(海拔1 450 m,籼粳交错区)、玉溪市(海拔1 650 m,粳稻区)3个试点进行多点试验,用AMMI模型分析单株产量的稳定性及适应性。研究结果表明:V23在石屏和玉溪都表现较好;在弥勒V12、V10和V32等3个组合可以继续扩大示范;V32适宜在玉溪种植;在石屏V36表现较好。因此,推荐V12和V23等2个组合进入省级区试,V10、V32、V20和V36等4个组合进入省级区试预备试验。单株产量试验资料的变异来源于基因型与环境互作、基因型所占比例分别达到33%和49.17%,两者变异累计达到82.17%,说明基因型受环境的影响较小,3个试点均能让基因型充分表现出产量潜力。
Three different indica and japonica type thermo-sensitive genic male sterile line N95076S (japonica), Peiai 64S and Shu Guang 612S (indica) were used as test lines, respectively, with 15 indica and japonica genotypes from Yunnan at different elevations The restorer lines were prepared according to NC Ⅱ 45 F1 (3 × 15) hybrid combinations. The experiment was conducted in three pilot sites in Shibing County of Yunnan Province (1000 m altitude, indica rice area), Mile County (elevation of 1 450 m, indica-japonica cross-border area) and Yuxi City (elevation of 1 650 m, japonica rice area) AMMI Model to Analyze the Stability and Adaptability of Yield Per Plant. The results showed that: V23 performed well in both ShiPing and Yuxi; in the combination of Maitreya V12, V10 and V32, the demonstration could continue to expand; V32 was suitable for planting in Yuxi; and V36 was the best in ShiPing. Therefore, two combinations of V12 and V23 are recommended to enter the provincial test, and four combinations of V10, V32, V20 and V36 are recommended for the provincial pilot test. The variation of single-plant yield test data came from the interaction of genotype and environment, with the genotypes accounting for 33% and 49.17% respectively, with the variation of both reaching 82.17%, indicating that genotypes are less affected by the environment. Three pilot sites All allow genotypes to fully demonstrate yield potential.