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Flag Leaves Could Help Top Off Photosynthetic Performance In Rice
The flag leaf is the last to emerge, indicating the transition from crop growth to grain production. Photosynthesis in this leaf provides the majority of the carbohydrates needed for grain filling so it is the most important leaf for yield potential. A team from the University of Illinois and the International Rice Research Institute (IRRI) found that some flag leaves of different varieties of rice transform light and carbon dioxide into carbohydrates better than others. This finding could potentially open new opportunities for breeding higher yielding rice varieties.
Published in the Journal of Experimental Botany, this study explores flag leaf induction which is the process that the leaf goes through to “start up” photosynthesis again after a transition from low to high light. This is important because the wind, clouds, and movement of the sun across the sky cause frequent fluctuations in light levels. How quic
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VIDEO: A team from the University of Illinois and the International Rice Research Institute (IRRI) found that some flag leaves of different varieties of rice transform light and carbon dioxide into. view more
Credit: Amanda Nguyen/RIPE project
The flag leaf is the last to emerge, indicating the transition from crop growth to grain production. Photosynthesis in this leaf provides the majority of the carbohydrates needed for grain filling so it is the most important leaf for yield potential. A team from the
University of Illinois and the
International Rice Research Institute (IRRI) found that some flag leaves of different varieties of rice transform light and carbon dioxide into carbohydrates better than others. This finding could potentially open new opportunities for breeding higher yielding rice varieties.
Representative image
BHUBANESWAR: Odisha is home to hundreds of aromatic rice varieties which are on the verge of extinction. To revive the aromatic small grain rice varieties of the state, rice scientist and honorary professor in plant breeding and genetics at the Orissa University of Agriculture and Technology (OUAT), S R Das has started a project to collect the seed of these indigenous rice varieties and promote its cultivation among farmers.
“Odisha produces aromatic rice similar to the famous Basmati rice and have qualities like pleasant fragrance with small and round grains, white colour and softness without much elongation on cooking. Unfortunately, due to lack of systematic effort for the collection, evaluation and genetic improvement of these much-valued short grained scented rices of the state, these varieties are slowly disappearing,” said Das, who collected seeds of these varieties from across the state and started a project of cultivating and collecting seeds for
Transcription Activator-Like Effector Nucleases
Plants are constantly exposed to various biotic and abiotic stresses. Thus, scientists continue to develop tools that help improve the field of plant breeding. These new tools and practices are referred to as plant breeding innovations, which include both precision IT-based tools and new molecular breeding techniques.
Precision breeding tools merge innovative digital devices like sensors, detectors, and robotics with management technologies for precise and more efficient production system control.
1 New molecular breeding techniques use gene-editing tools such as clustered regularly interspaced short palindromic repeats (CRISPR), transcription activator-like effector nucleases (TALENs), zinc-finger nucleases (ZFNs), and homing endonucleases or meganucleases.