Effect of Drought on Various Agro-physical Parameters of Chickpea (Cicer arietinum L.) Genotypes in a Field Experiment
Khadraji Ahmed,
Hind El Hari,
Chafika Houasli,
Ghoulam Cherki
Issue:
Volume 6, Issue 4, December 2021
Pages:
68-73
Received:
19 October 2021
Accepted:
4 November 2021
Published:
17 November 2021
Abstract: Drought stress is one of the major factors limiting the growth and development of legumes. In order to improve water deficit tolerance of this crop, several techniques have been put into practice such as seed priming or the selection of tolerant genotypes to water stress. In 2020, field experiment was conducted to assess the drought tolerance of thirty-six chickpea genotypes (C. arietinum) by analyzing the behaviour of certain physiological and biochemical parameters of plants harvested in a randomized field experiment. The genotypes analysed presented a diversity of behavior concerning the accumulation of mineral elements under drought. The results showed an accumulation of inorganic ions, especially calcium and potassium (1.8 and 2 mg.g-1, respectively) and increased proline and protein content (3.4 and 1.7 mg.g-1, respectively) has been observed in drought tolerant chickpea genotypes. Also, the results obtained showed that the P contents in the aerial parts are generally higher for plants with a high biomass, such as the case of genotypes V36 and V32. This tends to prove the positive effect of P on plant growth. After analysis of the various parameters, the results obtained allowed us to classify the tolerant genotypes:, V36, V38 andV41, intermediates: V40 and V4 and sensitive: V17 and V28.
Abstract: Drought stress is one of the major factors limiting the growth and development of legumes. In order to improve water deficit tolerance of this crop, several techniques have been put into practice such as seed priming or the selection of tolerant genotypes to water stress. In 2020, field experiment was conducted to assess the drought tolerance of th...
Show More
Identification of Stable Lentil Genotypes Using AMMI Analysis for the Highlands of Bale, Southeastern Ethiopia
Tadele Tadesse,
Amanuel Tekalign,
Belay Asmare
Issue:
Volume 6, Issue 4, December 2021
Pages:
74-79
Received:
20 October 2021
Accepted:
12 November 2021
Published:
19 November 2021
Abstract: Genotype x environment interaction was evaluated under six environments during 2017 to 2019 cropping season in the highlands of bale, Southeastern Ethiopia for grain yield of fifteen promising lentil genotypes promoted from the previous trials. Randomized Complete Block Design with four replications was used. The ANOVA revealed significant variation of grain yield for genotypes, environments, and genotypes by environment interaction. The explained percentage of grain yield by the environment, genotype, and genotype-environment interaction was 47.64, 25.47, and 26.89 respectively. In Additive Main Effect and Multiplicative Interaction (AMMI) analysis, the first two Principal components revealed more than 73% of the variability for the yield which indicates that G and GE together accounted for more than 25 percent of the total variability. The results finally indicated that AMMI stability value, GSI, and AMMI biplot are informative methods to explore stability and their by in subsequent variety recommendations. Based on AMMI Stability Value (ASV), G13, G5, G12, G1, and G15 showed the least ASV and were found to be more stable whereas G10, G7 G9 G8, and G14 have the second lower ASV and showed moderate stability. Based on Genotypes Selection Index (GSI), G5, G13, and G15 showed the lowest GSI whereas G10, G1, G4, G11, and G15 showed the second-lowest GSI. However, G4 and G10 gave grain yield higher than the checks, with moderate stability. Therefore, these two genotypes were identified as candidate genotypes to be verified for possible releases for the highlands of Bale, Southeastern Ethiopia, and similar agro-ecologies.
Abstract: Genotype x environment interaction was evaluated under six environments during 2017 to 2019 cropping season in the highlands of bale, Southeastern Ethiopia for grain yield of fifteen promising lentil genotypes promoted from the previous trials. Randomized Complete Block Design with four replications was used. The ANOVA revealed significant variatio...
Show More
