POD NUMBER AND PHOTOSYNTHESIS AS PHYSIOLOGICAL SELECTION CRITERIA IN SOYBEAN (Glycine max L. Merrill) BREEDING FOR HIGH YIELD

Sitompul, Syukur Makmur; Sari, Dian Indra; Krisnawati, Erna; Mulia, Rachmad Harri; Taufiq, Muhammad

doi:10.17503/agrivita-2015-37-1-p075-088

Cited by 2 publications

(3 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Yield loss, expressed as yield proportion of control plant yield due to varying levels of exposure to dicamba in irrigation water, was projected based on models available in the literature using 14 DAT for plant injury assessments (Egan et al 2014a) and pod counts (Sitompul et al 2015). These estimates were then related to estimates of dicamba dose (mg cm −2 ) delivered at each dicamba concentration to the surface area of the potted field soil, which was subsequently scaled up to approximate field rates (g ha −1 ).…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Soybean response to dicamba in irrigation water under controlled environmental conditions

Willett¹,

Grantz²,

Lee

et al. 2019

Weed Sci

View full text Add to dashboard Cite

While much research has focused on crop damage following foliar exposure to auxin herbicides, reports documenting the risk posed by exposure via root uptake of irrigation water are lacking. Herbicide residues circulated in tailwater recovery systems may pose threats of cross-crop impacts to nonresistant cultivars with known sensitivity to auxins. An auxin-susceptible soybean [Glycine max(L.) Merr.] cultivar was grown in a controlled growth chamber environment and exposed to dicamba dissolved in irrigation water applied to the soil surface, simulating furrow irrigation. Five herbicide treatment concentrations, ranging from 0.05 to 5.0 mg L−1and encompassing estimated field doses of 3.1 to 310g ha−1, were applied to the soil of potted soybean plants at V3/V4 or R1 growth stages. Plant injury (0% to 100%), dry mass, height, number of pods, and number of pod-bearing nodes were measured. Kruskal-Wallis and logistic regression analyses were performed to determine treatment differences and examine dose effects. Yield losses were projected using (1) 14 d after treatment plant injury assessments based on injury–yield relationships described for foliar exposures and (2) pod counts. Dicamba concentration was the main significant factor affecting all growth response metrics, and growth stage was a significant explanatory variable only for the height response metric. A nonlinear response to dicamba dose was observed, with the threshold response dose required to affect 50% of plants being three times greater for 40% crop injury compared with 20% injury. Yield projections derived from plant response to root uptake compared with foliar exposure indicate that soybean may express both magnitude of injury and specific symptomology differently when exposure occurs via root uptake. Drift exposure–based models may be incompatible to predict soybean yield loss when injury results from irrigation. Data are needed to develop correlations for predicting yield losses based on field-scale exposure to dicamba in irrigation water, as well as assessment of real-world concentrations of herbicide residues in tailwater recovery systems.

show abstract

Section: Methodsmentioning

confidence: 99%

“…Projected yield proportions estimated from percent plant injury (Egan et al 2014a) and from pod counts (Sitompul et al 2015) ranged from 1 to 0.63 and 0.95 to 0, respectively (Figure 3). For both sets of projections, yield proportion decreased with increasing dicamba dose above 6.2 g ha −1 (dose equivalent to the 0.1 mg L −1 treatment).…”

mentioning

confidence: 99%

Soybean response to dicamba in irrigation water under controlled environmental conditions

Willett¹,

Grantz²,

Lee

et al. 2019

Weed Sci

View full text Add to dashboard Cite

show abstract

“…According to Oz et al (2009), and Valencia-Ramirez and Ligarreto-Moreno (2012) number of pods and number of nodes gave direct positive effect to seed weight per plant. Malik et al (2007) and Sitompul et al (2015) suggested that number of pods may be used as one of selection criteria in soybean breeding for high yield. Additionally, the highest yield per plant in this study was found on genotypes with large and medium seed size.…”

Section: Resultsmentioning

confidence: 99%

Response of soybean genotypes introduced from South Korea to drought stress during reproductive stage

Purwantoro¹,

Suhartina²,

Nugrahaeni³

et al. 2017

Biodiversitas

View full text Add to dashboard Cite

Abstract. Purwantoro, Suhartina, Nugrahaeni N, Sulistyo A. 2017. Response of soybean genotypes introduced from South Korea to drought stress during reproductive . Soybean is mostly planted in wetland (paddy field) during dry season. The plant is frequently suffered from drought which lead to low productivity. Cultivar tolerant to drought is needed in an attempt to increase productivity. Instead of high productivity, short duration and large seed size are soybean characteristics preferred by soybean farmers in Indonesia. Research aimed to assess response of soybean introduction genotypes to drought stress during reproductive phase were conducted during dry season of 2012. Genotypes used in the study were twenty soybean genotypes introduced from South Korea and three check cultivars (Mutiara, Grobogan, and Dering 1). The trials were conducted in the field at Kendalpayak Experimental Farm and under rain-shelter in Kendalpayak, Malang, East Java, Indonesia. Each genotype was planted in a single row of 2 m length, with no replication. Plant spacing was 40 cm x 15 cm. Fertilizers i.e. 100 kg ha -1 of Urea, 100 kg ha -1 of SP36, and 75 kg ha -1 of KCl were applied entirely at planting time. The plants were irrigated twice, at planting and at flowering time, and then subjected to drought stress during reproductive phase. Observations included days to flowering, days to maturity, plant height, number of branches, number of fertile nodes, number of pods, number of empty pods, weight of 100 seeds, and seed weight per plant. Results showed that five out of the 20 tested genotypes were resistant to drought stress during reproductive phase comparable to the check cultivar Dering 1. Four of them, i.e. Daewon, Ilmi, Jangmi, and Mausu, including large seed size and short duration. Those characteristics can be used to improve seed size and plants maturity of the existing drought tolerant cultivar.

show abstract

POD NUMBER AND PHOTOSYNTHESIS AS PHYSIOLOGICAL SELECTION CRITERIA IN SOYBEAN (Glycine max L. Merrill) BREEDING FOR HIGH YIELD

Cited by 2 publications

References 28 publications

Soybean response to dicamba in irrigation water under controlled environmental conditions

Soybean response to dicamba in irrigation water under controlled environmental conditions

Response of soybean genotypes introduced from South Korea to drought stress during reproductive stage

Contact Info

Product

Resources

About