Pod Dehiscence in Relation to Pod Position and Moisture Content in Soybean

Romkaew, Jutamas; Umezaki, Teruhisa; Suzuki, K.; Nagaya, Yuichi

doi:10.1626/pps.10.292

Cited by 13 publications

(7 citation statements)

References 21 publications

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“…From this study indicated that soybean genotypes with pods position more concentrated at upper and middle parts may show less shattered pods. But this result was not in agreement with Romkaew et al (2007), who reported that the frequency of pod shattering was higher at the upper part of the stem than other parts of the stem. However, a further study is needed because other factors may be involved, such as the moisture content of the pods.…”

Section: Discussioncontrasting

confidence: 89%

Characterization and performance of agronomic characters of soybean genotypes resistant to pod shattering

Krisnawati¹,

Adie²

2017

Biodiversitas

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Abstract. Krisnawati A, Adie MM. 2017. Characterization and performance of agronomic characters of soybean genotypes resistant to pod shattering. Biodiversitas 18: 1158Biodiversitas 18: -1164. Pod shattering is one of the major obstacles of soybean cultivation in Indonesia's tropical climate. A total of 24 soybean genotypes, including Anjasmoro (check variety for pod-shatter resistant), Argomulyo and Grobogan (susceptible to pod shattering). The field experiment was conducted in Banyuwangi (East Java, Indonesia) during the dry season II 2016. The experimental design was randomized block, consisted of 24 soybean genotypes as sample trait with four replications. Pods from six random plants at physiological maturity (R8) were detached for pod shattering evaluation. The pod shattering evaluation was conducted in Laboratory of Plant Breeding, Indonesian Legumes and Tuber Crops Research Institutes (Malang, Indonesia) by using oven method and ambient temperature method. The classification of shattering resistance was according to Bailey et al. (1997) and Mohammed (2010), i.e. resistant (0-10% shattered pods), intermediate (11-70 % shattered pods) and susceptible (71-100% shattered pods). The average shattered pods of 24 genotypes by oven method reached 42.67%, higher than those of ambient method (21.81%). Six soybean genotypes showed consistently resistant to pod shattering based on oven as well as ambient method. Pods position at lower part was more susceptible to pod shattering than those at middle and upper part. The limit of pod shattering was ranging from two to 38 days. Genotype of G511H/Anjs/Anjs-1-2 which characterized by pod shatter resistant, produced high yield, and large seed size, was potentially developed at the tropical area, such as Indonesia.

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Section: Discussioncontrasting

confidence: 89%

Characterization and performance of agronomic characters of soybean genotypes resistant to pod shattering

Krisnawati¹,

Adie²

2017

Biodiversitas

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“…According to Romkaew et al, (2007), the relationship between pod shattering and the pod position in the stem was also affected by the moisture content of the pods. In other crops, such as mungbean, it also showed that the indeterminate flowering habit of this crop contributes to the spread of flowering and pod maturity over the entire reproductive phase on a single plant.…”

Section: Discussionmentioning

confidence: 99%

Influence of the different pod positions and screening methods on soybean pod shattering

Krisnawati¹,

Soegianto²,

Waluyo³

et al. 2021

KJS publishes peer-review articles in Mathematics, Computer Sci

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Pod shattering is one of the major soybean constraints in the soybean production centers, particularly in the tropics. The screening for pod shattering resistance of 16 genotypes was carried out using detached and undetached pod methods on the three different pod positions on the stem. The field research was arranged in a randomized block design, during the dry season in Banyuwangi, Indonesia. The shattering evaluation was conducted in the laboratory using the ovendry method. The screening methods to investigate the pod shattering resistance of each genotype consisted of the detached pod (DP), undetached pod (UDP), and undetached whole-stem method (UWS). The result showed that the detached pod method (DP) resulted in a higher average podshattering percentage (15%) than the undetached pod methods (UDP and UWS, 13% and 11%, respectively). Nevertheless, the detached pod and undetached pod methods provide a consistent result for the evaluation of pod shattering resistance, showed by their correlation coefficients (DP and UDP, r = 0.98**; DP and UWS, r = 0.98**, UDP and UWS, r = 0.99**). The detached pod with the oven-dry method was suggested to be used for screening of pod shattering resistance. This method enables to screen genotypes in greater numbers, provides a homogeneous selection pressure and environmental condition. Pods at the upper part of the stem were more resistant to shattering than those pods in the middle part and lower part. The pod length, seed length, seed weight, pod wall weight to the pod weight ratio, and weight of 25 seeds appeared to be the significant indicators for pod shattering resistance. The shattering evaluation resulted in five soybean genotypes (Anj/G100H-28, Anj/G100H-44, Anj/Rjbs-304, Anj/Rjbs-30, and Detap 1) with consistent resistance to pod shattering based on the three methods. These genotypes can be used as donor parents in the breeding program for pod shattering resistance.

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“…This result is in line with the results obtained by Krisnawati and Adie (2017a) using an ambient temperature method. According to Romkaew et al (2007), the differences in the shattering resistance was due to the moisture content of the pods.…”

Section: Shattering At Different Pod Positionsmentioning

confidence: 99%

Pod Positions on the Plant Associated with Pod Shattering Resistance in Soybean Genotypes

Krisnawati

Soegianto

Waluyo

et al. 2021

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Background: One of the major constraints of soybean production in Indonesia is pod shattering which occurs after soybean pod maturity. This study aimed to identify the pod shattering resistance of different pod positions in the plant stem. Methods: Sixteen genotypes were evaluated in the field research during the dry season 2019. The experiment was laid out in a randomized block design with three replicates. Ten sample plants were randomly taken after R8 phase. Plant was divided into three parts, i.e. upper part, middle part and lower part. The shattering evaluation was done using the oven-dry method in the laboratory. The observation on the number of shattered pods was measured for each part of plant stem. Result: Pod shattering was different among the pod positions as well as among genotypes. One genotype was categorized as resistant, eight genotypes were moderate, six genotypes were susceptible and one genotype was highly susceptible. The highest percentage of the shattered pods was in the lower part of the plant stem, followed by the middle and upper part, respectively. The resistant genotypes showed the shattered pods mostly in the lower part of the stem, the moderate genotypes showed the shattered pods mostly in the lower and middle part of the stem and the susceptible genotypes shattered in all part of the stem.

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Pod Dehiscence in Relation to Pod Position and Moisture Content in Soybean

Cited by 13 publications

References 21 publications

Characterization and performance of agronomic characters of soybean genotypes resistant to pod shattering

Characterization and performance of agronomic characters of soybean genotypes resistant to pod shattering

Influence of the different pod positions and screening methods on soybean pod shattering

Pod Positions on the Plant Associated with Pod Shattering Resistance in Soybean Genotypes

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