title: Stigmatic receptivity determines the seed set in Indian mustard, rice and wheat crops.
abstract: Stigmatic receptivity restricts the successful pollination in cereal crops. The present study deals with the biochemical test for enzymes producing in stigma of field crops such as Indian mustard, rice and wheat. The alcohol dehydrogenase and hydrogen peroxide assays revealed stigmatic receptivity as a violet color and oxygen bubbles released by the chemical reaction. Therefore, the 2 quick tests are in conformity to each other and supported the seed set data, which was utmost at blooming stage of flower ranged between 2-4 d All the 3 crops showed variation in stigmatic receptivity with respect to different time periods of blooming stages and hence, it may affects simultaneous pollen germination and tube growth, fertilization and seed set. The present finding suggests that the growth of pollen tube and stigma receptivity could be influenced by specific enzymes on stigma surface after 2-4 d of blooming stage, which contributes to proper seed set.
authors.affiliation: Division of Seed Science and Technology; Indian Agricultural Research Institute ; New Delhi, India.
authors.forename: Ramwant
authors.initials: R
authors.lastname: Gupta
authors.affiliation: Division of Seed Science and Technology; Indian Agricultural Research Institute ; New Delhi, India.
authors.forename: Hrishikesh
authors.initials: H
authors.lastname: Sutradhar
authors.affiliation: Division of Seed Science and Technology; Indian Agricultural Research Institute ; New Delhi, India.
authors.forename: S K
authors.initials: SK
authors.lastname: Chakrabarty
authors.affiliation: Plant Biology: Plant Molecular Biology Group; International Center for Genetic Engineering and Biotechnology ; New Delhi, India.
authors.forename: Mohhammed Wahid
authors.initials: MW
authors.lastname: Ansari
authors.affiliation: Division of Seed Science and Technology; Indian Agricultural Research Institute ; New Delhi, India.
authors.forename: Yogendra
authors.initials: Y
authors.lastname: Singh
keywords: bloom stage; dehydrogenase; peroxidase; protogyny flower; receptivity; seed set; stigma