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根据1961—1964年对两个品种、19块春玉米地心叶期着卵量及着卵株率的调查资料,分析了:1)卵块在田间的分布型式,2)着卵株率与百株累计卵量的关系,3)百株高峰卵量与累计卵量的关系。 分析表明:心叶期卵块在田间的分布型式符合于随机分布,因此着卵株百分率与百株累计卵块数之间存在着正相关的关系。 着卵株率(p)与百株累计卵块数(x)间有 P=1-e~(-0.00985_x~(0.9984))的曲线函数关系。作者利用此式制成了一个由著卵株百分率来推算百株累计卵块数的检索表(表3)。 心叶期百株高峰卵块数(x)与百株累计卵块数(Y)之间则有直线回归的关系,以百株高峰卵块数估计百株累计卯块数的回归式为:Y=11.47+2.64x。 利用上述两种调查方法来估计心叶期的累计卵块数可以大大节省时间和人力。这两个方法在实用上各有其优缺点,可以根据具体情况任用一法。
Based on the survey data of the number of eggs laid and the percentage of ovary during the period from 1961 to 1964 in two cultivars and 19 spring maize soils, the distribution patterns of egg masses in the field were analyzed. 2) The relationship between the cumulative egg production, 3) the relationship between the peak egg production and the cumulative egg production. The analysis showed that the distribution pattern of leaf stage leaf blocks in the field was in accordance with the random distribution, so there was a positive correlation between the percentage of oocytes and the number of accumulated egg masses per 100 plants. There was a curve function of P = 1-e ~ (-0.00985_x ~ (0.9984)) between the rate of egg plant (p) and the number of accumulated egg masses per 100 plants (x). Using this formula, the author made a search table that deduced the number of accumulated egg masses per 100 plants from the percentage of ovum (Table 3). There was a linear regression relationship between the number of peak egg masses per centenary leaf (x) and the number of accumulated egg masses per hundred (Y) at the leaf stage. The regression equation of the number of accumulated oaks per hundred plants was estimated as Y = 11.47 + 2.64x. The use of these two surveys to estimate the cumulative number of leaf stages of the egg block can greatly save time and manpower. Both of these two methods have their own advantages and disadvantages in practice, and one method can be appointed on a case-by-case basis.