Vol. 7, Issue 6 (2019)
Physiological evaluation of different safflower genotypes (Carthamus tinctorius L.) Through radiation use efficiency technique
Author(s): RP Patil, Suvarna and Shankergouda
Abstract: The experiment was conducted at MARS, UAS Raichur, Karnataka using thirty different safflower genotypes to understand the genotypic differences for dry matter production as influenced by solar radiation and leaf area index. An attempt was made to develop the light extinction coefficient (k) which was used to simulate the light transmission in safflower plant canopy. Radiation Use Efficiency (RUE) is an important character in understanding and modeling the relationship between plant growth and the physical environment. Plant dry matter accumulation depends on the total carbon fixed during photosynthesis and the fraction of carbon converted into dry matter. The experiment was laid out in randomized block design with two replications using thirty different genotypes of safflower. The light interception, leaf area index was measured during anthesis time and light extinction coefficient (k) was calculated. Dry matter production and yields were recorded at the time of harvesting. Results showed the genotypic differences for all the characters studied. Among the thirty genotypes, the genotype GMU 2894 and GMU 7317 showed higher yields (68.0 g/plant). Moreover, these genotypes also recorded high Radiation Use Efficiency (RUE), more Light Extinction Coefficient (LEC) and Leaf Area Index (LAI) compared to others. Therefore, the higher yield of these genotypes may be attributed to the above physiological characters.
Pages: 98-101 | 504 Views 79 Downloads
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How to cite this article:
RP Patil, Suvarna, Shankergouda. Physiological evaluation of different safflower genotypes (Carthamus tinctorius L.) Through radiation use efficiency technique. Int J Chem Stud 2019;7(6):98-101.
