- Arvita Netti Sihaloho*, Trikoesoemaningtyas, Didy Sopandie, Desta Wirnas
- Faculty of Agriculture, Bogor Agricultural University, IPB-Darmaga Campus, Bogor 16168, Indonesia
This experiment consists of two stage i.e: (1)
Study inheritance root re-growth in nutrient culture. The objective of
this research was to study soybean inheritance tolerance to aluminum
stress and gene action at seedling stage and acid soil.
This
research used 120 seeds of F2 population generated from crossing
between Argomulyo (Al-sensitive) with Tanggamus (Al-tolerant). Seeds
were grown in nutrient culture for six days (two days without Al, two
days with Al concentration 1.5 mM and pH 4.0 then two days more without
Al) to see root length under condition stress and recovery. The result
showed root length had high and medium heritability at condition stress
and recovery, that means root length is easily be inherited because root
length was larger influenced by genetic compared to the environment
factors. The root re-growth on F2 population at Argomulyo were 83 plants
and Tanggamus were 33 plants. (2) Study inheritance of
agronomy
characters in the acid soil. Studied inheritance tolerance to Al stress
at acid soil showed that number of productive branches, seed weight by
plant and 100 seeds weight had moderate heritability so the characters
were used as character selection for next generation.
In the past decades, the edible vegetable oil fuels were of no interest as a source of energy due to their higher price compared to fossil fuels. Recent increases in petroleum prices and confusions about the future petroleum availability have increased a renewed interest in vegetable oil fuels for diesel engines.
Also the most suitable solvent and temperature conditions for the highest oil extraction yield were determined.
Irrigation treatments were assigned to main plots and three Potato
genotypes were allocated to the sub plots. The potato genotypes traits
such as tuber yield, relative water content, starch content, chlorophyll
(a), chlorophyll (b), chlorophyll (a+b), and carotenoid were assessed
under both well-watered and deficit irrigation conditions. Results
showed that limited irrigation reduced plant tuber yield to17.7%
compared with common cultivar. The Clone 97-2 gave the highest tuber
yield, chlorophyll (a+b) and carrotenoid content at 80% irrigation
treatment.
Therefore, some genotypes of potato are more suited for planting in
Ardabil region. It was concluded that using clone 97-2 genotype in this
region would be an advantage for farmers.
