- 行业: Agriculture
- Number of terms: 29629
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1). Complex form of eukaryotic nuclear material at the times between cellular divisions (cf., euchromatin, heterochromatin). 2). The substance of chromosomes, now known to include DNA, chromosomal proteins, and chromosomal RNA.
Industry:Agriculture
Located in the leaves and serve as small photosynthetic factories within the leaf.
Industry:Agriculture
Yellowing or discoloration of the normally green parts of chlorophyll-bearing plants due to diseases or nutritional/physiological disorders.
Industry:Agriculture
A plastid containing chlorophyll; seat of photosynthesis in eukaryotes.
Industry:Agriculture
A thick-walled asexual spore of a fungus formed by modification of a hyphal cell.
Industry:Agriculture
Yellowish green appearance as a result of chlorophyll deficiency. Plants are often smaller than normal.
Industry:Agriculture
Any of several gaseous compounds that are derivatives of methane, contain carbon chlorine and fluorine, and are used especially as aerosol propellants and refrigerants; suspected to be a major cause of ozone depletion.
Industry:Agriculture
A statistical test commonly used for attribute or categorical data (i.e., to test for a fixed ratio, for independence in a contingency table, or for homogeneity of a ratio), for homogeneity of variance test, and for goodness of fit. Chi-square is a nonsymmetric, continuous probability distribution which is the null distribution, or asymptotic null distribution, of many test statistics including Bartlett's test for homogeneity of variance and the so called chi-square tests of goodness-of-fit and independence in contingency tables.
Industry:Agriculture
A narrow tool that is used to break up soil. A very sharp hand tool used to cut and shape wooden objects and tools.
Industry:Agriculture
Nonbiological processes leading to the production of gaseous forms of nitrogen (molecular nitrogen or an oxide of nitrogen).
Industry:Agriculture