Identification of potentially high yielding irradiated cassava 'Gajah' genotype with different geographic coordinates

3rd International Symposium on LAPAN-IPB Satellite For Food Security and Environmental Monitoring 2016

地球科学;轻工业;生态环境科学

Subekti, I.^1 ; Khumaida, N.^1 ; Ardie, S.W.^1

Department of Agronomy and Horticulture, Faculty of Agriculture, Bogor Agricultural University (IPB), Jl. Meranti Kampus IPB Darmaga, Bogor, Indonesia^1

关键词: Geographic coordinates;    Harvest time;    High potential;    Kalimantan;    Research studies;    Tuber quality;    Tuber yield;    Yield potential;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/54/1/012013/pdf
DOI  :  10.1088/1755-1315/54/1/012013

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Cassava is one of the main and important carbohydrate producing crops in Indonesia. Thus cassava production and its tuber quality need to be improved. 'Gajah' genotype is a local genotypes cassava from East Kalimantan, has high potential yield (> 60 ton Ha-1). However, the harvest time of this genotype is quite long (>= 12 months). The objective of this research was to identify the high yielding cassava mutants from the gamma rays irradiated 'Gajah' genotype at M1V3 population and potential yield at different location. Several putative cassava mutants (12 mutants) were planted in Cikabayan Experimental Field, IPB from March 2015 to March 2016 and the yields compared with the same genotype grown at different location by seeing its coordinates to observe the potential yield. Our result showed that the fresh tuber weight per plant of some putative mutants could reach more than 8 kg (yield potential of 64 ton Ha-1). The harvested tubers also had sweet flavor, although the tubers of some putative mutants were bitter. Based on previous research study, the different geographic coordinate has resulted variability on fresh tuber yield. It seems that it needs to observe the stability of 'Gajah'- irradiated mutants in several location in Java Island.