J1.1 Monitoring Program at LIRE test field
Jatropha Program > J1. Germplasm Development... > J1.1 Monitoring Program at LIRE test field
Last Update: 05. June 2008
Description:
Accomplishment of a monitoring program on an existing Jatropha field. 21 elite plants were monitored concerning seed yield and growth parameter.
Dr. Frank Hirsinger tagging the 21 elite Jatropha plants at Jatropha plantation
Dr. Frank Hirsinger and Thonglai take readings of elite plant
Dr. Frank Hirsinger tagging the 21 elite Jatropha plants at Jatropha plantation
Dr. Frank Hirsinger and Thonglai take readings of elite plant
Elite plants had to be marked with 5m long bamboo sticks to find them in the field
Thonglai collecting data at the end of the vegetation period, when plants already lost their leaves
Elite plants had to be marked with 5m long bamboo sticks to find them in the field
Thonglai collecting data at the end of the vegetation period, when plants already lost their leaves
Status of work:
  • Data collection from monitoring of the 2007 vegetation period is finished and data analysis available now.
  • Monitoring at the test field for 2008 will take place to a simplified extent.
  • The progenies of our elite plants have been propagated in our nursery and were transplanted to the test fields for further screening.
Program Leader:
Assistants:Jakob Rietzler
Involved agencies:SES (Senior Experten Service)
Funding agencies:
No contractual arrangements so far
To have a basis for further plant breeding actions, it was necessary to start with a monitoring program of existing plants for gathering some basic parameters of Jatropha, like the mode of branching, formation branches, harvesting index, etc. This information leads to more understanding of the Jatropha plant, which is necessary for further plant breeding. Therefore, the senior expert Dr. Frank Hirsinger from Germany visited LIRE for one month and supported the institute for conducting its monitoring program. This was conducted at an existing Jatropha plantation near Vientiane, planted in April 2005. After a time of visual observation, Dr. Hirsinger selected 21 interesting plants for further monitoring and set up a catalogue of parameters which will be documented for the next years.
LIRE - Jatropha breeding table
LIRE researcher Thong Lai continued the work after Dr. Hirsinger left Laos. From June to December he went to the test field two times per week for gathering all relevant information of the selected elite plants. The following figure shows the seed-yield in the period between July and October of some selected plants:
LIRE - seed yield on test field
Plant number 14 has the highest yield during the monitored time. It has to be remarked that the harvest time of Jatropha seeds start at June, so that this seeds are not included into this figure.
The best selected plants will be taken into a breeding program together with other interesting Jatropha cultivars. Further selection will then take place in order to improve the genotype concerning yield, simultaneous maturing, pest resistance and other important parameters.
Data collection for the first period of monitoring has ended and LIRE has conducted an analysis of the data. This data reveals interesting information with regards to the growth of the plants, correlations between yield parameters and peaks of fruit maturation. Additionally, LIRE compared the collected data with climate data from the year 2007. This data analysis should lead to a better understanding of how environmental conditions like daylight time, precipitation and temperature influence the plants and what is induced by genetic disposition.
Documents:
  • Report of Dr. Frank Hirsinger
  • Data Analysis (To get this information, please contact ອີເມວນີ້ຈະຖືກປ້ອງກັນຈາກ ສະແຕມບອດ ແຕ່ທ່ານຕ້ອງເປີດການໃຊ້ງານຈາວາສຄຣິບເພື່ອອ່ານມັນໄດ້. )