- 行业: Agriculture
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The longest photoperiod at which the plant will flower, or beyond which the plant will not flower.
Industry:Agriculture
The simultaneous analysis of the sums of squares and cross-products of two or more variables. It uses the concepts of both analysis of variance and of regression. It is applicable only if there exists a concomitant variable (called covariate) which can not be controlled but is closely related to the variable of interest.
Industry:Agriculture
The simultaneous transformation of an organism with two or more genes, one or more of which is silent (non-selected) while at least one gene confers antibiotic resistance or another identifiable or selectable trait.
Industry:Agriculture
A measure of the degree of association between two variables and is computed as the ratio of the covariance of the two variables to the product of their standard errors. Values vary between -1 and +1.
Industry:Agriculture
A statistical measure used in computing the correlation coefficient between two variables; the covariance is the sum of (x-X)(y-Y) over all pairs of values for the variables x and y, where X is the mean of x values, and Y is the mean of the y values.
Industry:Agriculture
A device used to connect the ends of two adjacent objects, as in pipes or tubes.
Industry:Agriculture
First leaf developed by the embryo in seed plant. In most dicotyledon seeds, they are thickened and are storage sites of reserve food for use by the germinating seedling. Also called "seed-leaf."
Industry:Agriculture
A mutual relationship between two things such that an increase or decrease of one is generally associated with an increase or decrease of the other. Linear correlation is measured by the correlation coefficient (r), which may range from -1 to +1.
Industry:Agriculture
