Published Paper Details:

Abstract: The two Ecotypes of Allium hookeri Thwaites were collected from two different agro-climatic zones of Jharkhand for comparative stomatal studies. For stomatal studies leaf is divided into three parts and peeling was done with the help of razor. Peeled material were stained in safranin and mounted in glycerin. Then stomatal index as well as stomatal length and width were calculated by using ocular micrometer. The maximum length (50.0�1.73�) was observed in apex portion of the abaxial surface of Ecotype-II and the minimum length (36.3�0.39�) was observed in the abaxial surface of the basal portion of the ecotype-I. The maximum width size (18.4�0.84�) was observed in the middle portion of the abaxial surface of ecotype -II and the minimum width was (12.09�0.74�) at the apex portion of the adaxial surface of ecotype. Stomatal index was (16.07�1.16) which was maximum in the adaxial surface of the Ecotype-II and minimum in the apex portion of the both abaxial and adaxial surface (10.02�0.811). Through this investigation it must be concluded that anomocytic type of stomata is present in both the ecotypes. However there are some differences in the stomatal index, length and width of stomata. Stomatal study is helpful in understanding the biosystematic studies.