Wild Rice Gene Expression in Response to Brown Planthopper (Nilaparvata lugens Stål) Feeding and Whitebacked Planthopper (Sogatella furcifera Horvath) Feeding STUDIES ON THE RELATIONSHIP BETWEEN RESISTANCE TO WIHACKED PLANTHOPPER SOGATELLAFURCIFERA (HORVATH) AND CONTENTS OF SOME METABOLITES IN RICE VARIETIES Genetic Analysis of Resistance to the Brown Planthopper and Whitebacked Planthopper in the Restorer Lines of Indica Rice