Analysis of Ecotype, Growth and Development, Yield and Feed Value of Kenaf (hibiscus Cannabinus L.) Genetic Resources

In this study, we collected 29 Kenaf (Hibiscus cannabinus L.) genetic resources from 10 countries to confirm the possibility of the introduction into Korea.The Kenaf (Hibiscus cannabinus L.) has the broad industrial use like feed and the 5 times more strong CO2 absorption capacity compared to general plant.So recently it is considered as a good industrial source.We analyzed ecotype, growth and development, yield and feed value of collected resources.They were divided into 3 groups depending on flowering time, early maturing type blooming in early July, mid-late maturing type blooming from end of August to early September and late maturing type blooming in end of October.Early maturing type could get fruitful seed but dropped yield (average 7,895 ㎏/10a) and late maturing type could get high yield (average 12,572 ㎏/10a) but deletion.The other side mid-late maturing type could get yield over a certain level (average 11,207 ㎏/10a) and fruitful seed was ensured.The yields analyzed by resources indicated that K12 (Hongma 300) collected in China, K25 from India, K22 from Russia and K21 (Khonkaen 60) variety from China were more than 13,500 ㎏ per 10a.Feed value of early maturing type had inclined to more better than other types, but like dry digestible matter (DDM) and dry matter intake (DMI) of some late maturing types like K12, K21, K22 which had a high yielding ability were more better than that of early maturing types'.So relative feed value (RFV) which considered comprehensive item for feed value were indicated K21 was 102.5, K12 was 116.2 and K22 was 120.2.'Jangdae' the variety developed in Korea which could complement of other types' had a good quality for yield 10,975 ㎏/10a and 12.5% crude protein content and 101.9 of the relative feed value.So we need to be taken power to collection of mid-late maturing types resources.