Aspects for improving grain yield and quality of rice in the Mediterranean area
In the European Union rice (Oryza sativa L.) is mainly cultivated in the Mediterranean area where the climatic conditions (long days, low night temperatures and abundant sunlight during reproductive and maturity phases) are very favorable for rice production. Although under these conditions photosynthesis and soil N uptake are the main source of assimilates and nitrogen, respectively, for the developing grains, the contribution of dry matter and N translocation from vegetative tissues to the grains are also important. It has been found that high dry matter and N content at anthesis, in combination with an increased harvest index, increase dry matter and N translocation during the grain filling period and result in greater grain yields. Therefore, yield potential of Mediterranean rice could be improved by selecting for high dry matter at anthesis. This could be achieved by applying the honeycomb selection method in the first generations of a segregated material. Additionally, improvement in grain yield and quality could also be achieved by applying the appropriate cultural practices in the field, taking into account the rice cultivar grown. Results derived from recent research conducted in Greece on weed, pest and disease control and on the effect of harvesting time to grain quality are discussed in details.
| Main Authors: | , |
|---|---|
| Format: | conference_item biblioteca |
| Language: | eng |
| Published: |
CIRAD
|
| Subjects: | F30 - Génétique et amélioration des plantes, Oryza sativa, climat méditerranéen, zone méditerranéenne, augmentation de rendement, sélection, qualité, grain, rendement des cultures, http://aims.fao.org/aos/agrovoc/c_5438, http://aims.fao.org/aos/agrovoc/c_4697, http://aims.fao.org/aos/agrovoc/c_29563, http://aims.fao.org/aos/agrovoc/c_8487, http://aims.fao.org/aos/agrovoc/c_6951, http://aims.fao.org/aos/agrovoc/c_6400, http://aims.fao.org/aos/agrovoc/c_3346, http://aims.fao.org/aos/agrovoc/c_10176, http://aims.fao.org/aos/agrovoc/c_3373, |
| Online Access: | http://agritrop.cirad.fr/510204/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|