Blue-Green Algae (BGA) The class Myxophyceae or Cyanophyceae is commonly called Blue-Green algae because of the presence of a principal bluish-green pigment (c-phycocyanin) along with green chlorophyll-a, yellowish carotenoids, and some quantity of Myxoxanthin. The combination of the abundant blue and green pigments as mentioned above give these organisms a …

Definition Self-incompatibility is the inability of a pollen to fertilize the stigma of a same flower or the other flower of the same plant. It is a general name for several genetic mechanisms in angiosperms, which prevent self-fertilization and encourage outcrossing. Koelreuter 1st reported SI (Self incompatibility) in Verbascum phoeniceum …

Male sterility The male reproductive organs are mal-developed or aborted so that no viable pollens will be formed. This condition is known as male sterility (M.S) and may be inherited due to genetic, cytoplasmic or interaction of both genetic and cytoplasmic causes.   History of Male Sterility The first documentation …