Evaluation of Tolerance of Some Soybean Genotypes to Drought Stress

Authors

  • Ghajar Spanlou, Mahdi Department of Breeding and Plant Genetics, Sari Agricultural Sciences and Natural Ressoures University
  • Najafi Zarini, Hamid Department of Breeding and Plant Genetics, Sari Agricultural Sciences and Natural Ressoures University
  • RAHI, ALI REZA Department of Breeding and Plant Genetics, Sari Agricultural Sciences and Natural Ressoures University
  • Ranjbar, Gholamali Department of Breeding and Plant Genetics, Sari Agricultural Sciences and Natural Ressoures University
Abstract:

     In order to recognize the soybean tolerant genotypes, a greenhouse as factorial experiment was conducted in form of randomized complete block design with three repetition in 2017 in Damavand. The first factor contained 15 soybean genotypes and second factor included two levels of normal irrigation and irrigation disruption in time of podding. The traits included plant height, reproductive branches no., number of leaves, chlorophyll a, chlorophyll b, chlorophyll total, carotenoids, days to flowering, days to fifty percent podding, number of  flowers, dry weight of plant leaves, main stem nodes no, nodes in the, branches no, total dry stem weight, plant dry weight, first pod height of soil, days to harves, total pod no, dry weight of pod, pods length, seed pod no, seeds per plant, harvest index, weigh one hundred seeds and yield per plant. The analysis variance results showed that the reaction of soybean genotypes to conditions of drought stress and lack of stress were different. The genotypes of 1, 4, 10, 14 and 15 represented high yield in both conditions of drought stress and normal conditions. Analysis of phenotypic correlation showed that the seed yield has a positive correlation with seeds per plant, harvest index, total  dry weight of pods, weight dry of plant. Stepwise regression analysis for seed yield showed 99 % of variation of yield, as a dependent variable justified. In the path analysis for grain yield the maximum positive direct effects were related to weight dry of plant and weigh one hundred seeds that showed important characteristics in relation to grain. Principal component analysis used to study the relationship between indices. Two first components could explain more than 85% of variations of indices. Cluster decomposition divided the genotypes into 5 groups and genotypes 1, 9, 10, 14 and 15 were set in one group. These genotypes have good yield in both environments according to the mean.  

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

Evaluation of Drought Stress Tolerance in Some Faba Bean Genotypes Using Drought Tolerance Indices and Biochemical Compounds

In this study, different genotypes of faba bean were evaluated for Tolerance index and biochemical compounds under drought stress. 21 Genotypes of faba bean were studied based on RCBD design with three replications in two irrigation treatments (including normal irrigation and drought stress) during two cropping years (2018-2019) at Gorgan Agricultural Research Station. Based on the potential (Y...

full text

Evaluation of Tolerance Rate of Some Genotypes of Beans (Phaseolus Vulgaris L.) To Salinity Stress

     Evaluation of the physiological and biochemical traits can help to identify strategies for selection of resistant cultivars and increased crop yield production under diverse environmental conditions such as SALT stress conditions. To this end, an experiment was conducted in a greenhouse based on a completely randomized design (CRD) with three replications. The experimental factors were six...

full text

evaluation of tolerance to water stress in some sesame genotypes

to study genetic diversity and drought tolerance in sesame genotypes, an experiment in a randomized complete block design with three replications in 2010-2011 was conducted at the agricultural research field, university of birjand under stress and non-stress conditions. the aim of this study was the testing of yield, tolerance index and bi-plot analysis. materials included genotypes birjand, kh...

full text

Evaluation of Agro-Physiological Characteristics and Drought Tolerance in Some of Durum Wheat Breeding Genotypes

In order to study of agronomic, physiological characteristics, drought tolerance and to identify  Agro-physiological traits associated with drought tolerance, 19 durum wheat genotypes consisting of 17 advanced breeding lines and two control cultivars (Saji and Zahab) were evaluated in a randomized complete blocks design with three replicated under both stress (rainfed condition) and non-stress ...

full text

Evaluation of Drought Tolerance in Barley Genotypes (Hordeum vulgare L.) using Drought Tolerance Indices

Extended Abstract Introduction and Objective: Drought stress is one of the most important factors in reducing yield and barley production in rainfed arid regions, and counteracting or reducing the effect of stresses as a useful solution to increase barley yield. Therefore, improvement of stress-tolerant and suitable barley cultivars for arid and semi-arid regions is essential. Material and Me...

full text

Using Drought Tolerance Indices in Evaluation of Some Wheat, Triticale and Tritipyrum Genotypes

To evaluate drought tolerance in bread wheat, tritipyrum and triticale genotypes, 27 different genotypes were grown as a randomized complete block design under two irrigation regimes (control and drought) in two locations (Isfahan and Shiraz) during two growing seasons (2016 and 2017). Based on grain yield, several indices including stress tolerance index (STI), tolerance index (TOL), susceptib...

full text

My Resources

Save resource for easier access later

Save to my library Already added to my library

{@ msg_add @}


Journal title

volume 11  issue 32

pages  100- 115

publication date 2019-12

By following a journal you will be notified via email when a new issue of this journal is published.

Keywords

No Keywords

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023