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为了评价棉花品种的丰产性和稳定性,运用作物品种区域试验非平衡资料的统计分析方法,利用2013年的北疆早熟棉花区域试验资料,对各参试品种的产量相关性状及其稳定性进行了分析。结果表明,产量性状与许多农艺性状相关,作物的产量由多个农艺性状所决定,棉花的产量与农艺性状的通径系数由高到低依次为:铃重>衣分>果枝台数>总铃数>单株铃数>第一果枝节位>生育期>株高。产量稳定性方面,棉花品种V5、V13回归系数中等,产量水平高,适于E1~E5条件下种植;V8、V4和V3的稳定性较好,产量中等;V9产量较高,但稳定性参数较低,属特殊适应性品种,主要适应区域为E1、E2。V11、V10、V1、V6稳定性好,丰产性较好,适于E1~E5条件下种植,为适应性好的品种。V7、V2和V12品种稳定参数较高,产量较低,综合评价为稳定性一般和较差类型。
In order to evaluate the high yield and stability of cotton varieties, using the statistical analysis method of non-equilibrium data of regional trials of crop varieties, the yield-related traits and their stability of the tested varieties were studied by using the regional trial data of precocious cotton in northern Xinjiang in 2013 Analysis. The results showed that the yield traits were related to many agronomic traits. The yield of crops was determined by a number of agronomic traits. The path coefficients of cotton yield and agronomic traits from high to low were as follows: boll weight> Number of bolls> number of first fruit branch> growth period> plant height. For the yield stability, the regression coefficients of V5 and V13 were moderate and the yield level was high, which was suitable for the planting under the condition of E1 ~ E5. The stability of V8, V4 and V3 was better and the yield was medium. The yield of V9 was higher, but the stability parameter Lower, is a special adaptable species, the main adaptation area for the E1, E2. V11, V10, V1, V6 good stability, good yield, suitable for E1 ~ E5 conditions for planting, good adaptability of the species. V7, V2 and V12 varieties of higher stability parameters, lower yields, comprehensive evaluation of the stability of the general and poor types.