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Dry matter accumulation and partitioning, and seed yield in indeterminate Andean lupin (Lupinus mutabilis sweet)
- Source :
- Australian Journal of Agricultural Research, Australian Journal of Agricultural Research, CSIRO Publishing, 1997, 48 (1), pp.91-101
- Publication Year :
- 1997
- Publisher :
- HAL CCSD, 1997.
-
Abstract
- Despite the high oil and protein content of the seeds, the agronomic potential of Lupinus mutabilis Sweet, a South American lupin species, is limited because of its low seed yield and its uncertain maturity. Dry matter accumulation and partitioning, and seed yield, of 2 genotypes (early-maturing LM34 and late-maturing LM268) were studied in 2 seasons at 2 densities at Lusignan, France. Total dry matter at harvest was, on average, 680 g/m2. The mainstem and first-order branches mainly contributed to total plant biomass but pods were only produced on the mainstem. On average, across the different crops, the maximum leaf area index (LAI) was 2· 8. The duration of LAI above 2·5 was short and not correlated with the total dry matter production. The partitioning of the dry matter varied according to the genotype. LM34 showed enhanced pod growth, its harvest index (HI) was 0·32, and seed yield averaged 1·28 t/ha. LM268 showed enhanced vegetative growth, both HI and seed yield were lower (0·16 and 1·13 t/ha, respectively), and whole plant maturity was never reached. For both genotypes during the pod filling, no remobilisation of assimilates occurred from stems to pods.
- Subjects :
- 0106 biological sciences
2. Zero hunger
[SDV.SA]Life Sciences [q-bio]/Agricultural sciences
[SDV.SA] Life Sciences [q-bio]/Agricultural sciences
ARCHITECTURE
biology
Vegetative reproduction
Lupinus mutabilis
04 agricultural and veterinary sciences
biology.organism_classification
01 natural sciences
Horticulture
Lupinus
Ruminant
Botany
040103 agronomy & agriculture
0401 agriculture, forestry, and fisheries
Dry matter
Plant breeding
REPARTITION
Leaf area index
General Agricultural and Biological Sciences
RENDEMENT EN GRAINES
Plant nutrition
010606 plant biology & botany
Subjects
Details
- Language :
- English
- ISSN :
- 00049409
- Database :
- OpenAIRE
- Journal :
- Australian Journal of Agricultural Research, Australian Journal of Agricultural Research, CSIRO Publishing, 1997, 48 (1), pp.91-101
- Accession number :
- edsair.doi.dedup.....2000675929039bf8d7789b72f6223f38