Planting Date and Irrigation Effects on Seed Quality of Early-Maturing Soybean in the Mid-South USA

Incidence of Phomopsis seed decay is frequently high and quality low in seed from early-maturing maturity group III and IV soybean cultivars planted in early to mid-April in the southern United States. Cultivars resistant to this disease have not been available until the recent release of germ plasm lines SS 93-6012 and SS 93-6181. Our objective was to determine the effects of planting dates with these lines and one Phomopsis seed decay-susceptible soybean cultivar, Asgrow 3834, on seed infection by Phomopsis spp. and on yield and the correlation between percentage of Asgrow 3834 infected with Phomopsis spp. and seed quality. Generally, yields averaged over years were significantly greater for mid-April than mid-June plantings, and yields of cultivars were similar within a planting date. Soybean lines SS 93-6012 and SS 93-6181 were highly resistant to Phomopsis seed decay compared with the susceptible cultivar, Asgrow 3834. There was a significant, negative correlation between germination of seed from mid-April plantings of Asgrow 3834 and percentage of these seed infected with Phomopsis spp. Moreover, there were significant correlations between fatty acid composition of Asgrow 3834 seed and the percentage of these seed infected with Phomopsis spp. This altered composition of fatty acids may be responsible for reduced quality of oil derived from seed infected with this fungus. Phomopsis seed decay-resistant soybean lines SS 93-6012 and SS 93-6181 should be useful in breeding programs focused on developing high-yielding cultivars resistant to this disease.

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Effect of planting date on soybeans in the Namoi Valley, New South Wales

Australian Journal of Experimental Agriculture ◽

10.1071/ea9770148 ◽

1977 ◽

Vol 17 (84) ◽

pp. 148 ◽

Cited By ~ 12

Author(s):

GA Constable

Keyword(s):

Seed Quality ◽

New South ◽

Plant Size ◽

Planting Date ◽

Cultivar Differences ◽

Planting Dates ◽

Small Plant ◽

South Wales ◽

Yield Determinants

The effect of planting date on phasic development, LAI, yield, yield determinants and seed quality of soybeans was studied in eight seasons. For all development phases up to the end of flowering, each phase was longer for longer daylengths within a cultivar, with later maturing cultivars having increasing sensitivity to daylength. LAI at flowering for each treatment was a function of time from flowering. The yield of Bragg and indeterminate cultivars (Wayne, Delmar and Ruse) decreased if planted in early November. There was generally a decreased yield at a late January planting due to small plant size (low LAI and few mainstem nodes) and in some instances, decreased seed size. Planting dates in December appeared to be optimum, although season and cultivar differences occurred. Seed oil content decreased and protein content increased as planting was delayed.

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Eff ect of planting date and ha rvesting stage on seed quality of 'SC 701' maize under small-scale farming conditions

Seed Science and Technology ◽

10.15258/sst.2017.45.2.18 ◽

2017 ◽

Vol 45 (2) ◽

pp. 368-382

Author(s):

D.B. Akinnuoye-Adelabu ◽

A.T. Modi

Keyword(s):

Seed Quality ◽

Planting Date ◽

Small Scale

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Manifestarea productivităţii genotipurilor de in (Linum usitatissimum L.) cultivat în diferite epoci de semănat

10.53040/gppb7.2021.57 ◽

2021 ◽

Author(s):

Doina Cutitaru ◽

Keyword(s):

Cultural Production ◽

Seed Quality ◽

Abiotic Factors ◽

Planting Date ◽

Physical Factors ◽

Linum Usitatissimum L ◽

Technological Level ◽

The Republic ◽

Productivity Potential

Flax is a known but extremely rare crop for the Republic of Moldova. The potential level of agri-cultural production is generally considered to be determined by physical factors such as quality of the soil, quality and availability of water and the prevailing climate. Current studies cover at the international level the following directions: increase of productivity potential, increase of resistance to unfavorable bio-tic and abiotic factors, improvement of qualitative yield indices. The seed quality and seed production are known to be conditioned by the optimum planting date and the technological level used.

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Quality of Canned `Ruddy' Kidney Beans as Influenced by Planting Date, Harvest Time, and Length of Storage before Canning

Journal of the American Society for Horticultural Science ◽

10.21273/jashs.115.6.1051 ◽

1990 ◽

Vol 115 (6) ◽

pp. 1051-1054 ◽

Cited By ~ 4

Author(s):

A.K. Forney ◽

D.E. Halseth ◽

W.C. Kelly

Keyword(s):

Seed Size ◽

Seed Quality ◽

Planting Date ◽

Harvest Time ◽

Late Planting ◽

Kidney Beans ◽

Harvest Dates ◽

Red Kidney Beans ◽

Time Of Harvest

Four planting and harvest dates yielded 16 lots of `Ruddy' red kidney beans (Phaseofus vulgaris L.) that were canned immediately after harvest in the fall and from storage in January and April. Late planting resulted in a high percentage of acceptable beans, but time of harvest had little effect on subsequent canning quality. The most important defect was transverse splitting from the hilum. Hilum splits, drained weight, cooked weight, and seed size were all negatively correlated with acceptability. Seed size was the most important factor determining quality, with the smallest seeds exhibiting the fewest splits. Length of storage had significant but small effects on canned seed quality.

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Respons Pertumbuhan, Fisiologi, dan Produksi Kedelai terhadap Pemberian Pupuk Nitrogen dengan Dosis dan Waktu yang Berbeda

Jurnal Ilmu Pertanian Indonesia ◽

10.18343/jipi.26.1.24 ◽

2020 ◽

Vol 26 (1) ◽

pp. 24-31

Author(s):

Firdaus Puja Santana ◽

Munif Ghulamahdi ◽

Iskandar Lubis

Keyword(s):

Seed Quality ◽

Block Design ◽

N Fertilization ◽

Planting Date ◽

Seed Filling ◽

Randomized Block Design ◽

Two Factors ◽

Filling Phase ◽

Soybean Plants

Fertilization is needed to support the growth of soybean plants. Nitrogen is a type of fertilizer that is needed by soybeans in considerable amounts. Aplication of nitrogen at different times is able to affect the production and quality of soybean seeds. The purpose of this study was to attain information about the morphology, physiology, and production responses of two soybean varieties to the supply of N. This research was conducted at the Cikabayan Experimental Station, IPB University, Dramaga, Bogor Regency. This study used a completely randomized block design with two factors, namely two soybean varieties consisting of Tanggamus and Biosoy 1, and four combinations of N fertilizer doses that were without N fertilization, fertilized N at planting date, fertilized N at the seed filling phase, and fertilized N at planting date+seed filling phase with two replications. The dosage of urea fertilizer used was 25 kg ha-1, so that the N dosages is obtained 11,5 kg ha-1. The results showed that the application of N fertilizers at planting and during the seed filling phase (N3) was an effective time to increase soybean production. Keywords: fertilization, morphology, seed quality

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Seed Yield and Seed Quality of Some Soybean Genotypes as Influenced by Planting Date

Journal of Plant Production ◽

10.21608/jpp.2016.46960 ◽

2016 ◽

Vol 7 (11) ◽

pp. 1165-1171

Author(s):

A. Morsy ◽

Eman Mohamed ◽

Th. Abou-Sin

Keyword(s):

Seed Yield ◽

Seed Quality ◽

Planting Date ◽

Soybean Genotypes

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Yield and Seed quality of barley (Hordeum vulgare L.) as affected by variety, nitrogen level and harvesting time

JOURNAL OF ADVANCES IN AGRICULTURE ◽

10.24297/jaa.v2i2.4250 ◽

2014 ◽

Vol 2 (2) ◽

pp. 93-100

Author(s):

Shahnaj Yesmina ◽

Moushumi Akhtarb ◽

Belal Hossain

Keyword(s):

Grain Yield ◽

Seed Weight ◽

Seed Quality ◽

Quality Parameters ◽

Nitrogen Level ◽

Yield Attributes ◽

Harvesting Time ◽

Nitrogen Levels ◽

Vigour Index

The experiment was conducted to find out the effect of variety, nitrogen level and harvesting time on yield and seed quality of barley. The treatments used in the experiment consisted of two varieties viz. BARI Barley 4 and BARI Barley 5, three harvesting time viz. 35, 40 and 45 Days after Anthesis (DAA) and nitrogen levels viz. 0, 70, 85 and 100 kg N ha-1 . The experiment was laid out in a spilt- spilt-plot design with three replications assigning the variety to the main plot, harvesting time to the sub-plots and nitrogen level to the sub-sub plots. Variety had significant effects on the all yield attributes except fertile seeds spike-1 . Seed quality parameters viz. normal seeds spike-1 , deformed seeds spike-1 , germination (%) and vigour index were statistically significant. The variety BARI Barley 5 produced higher grain yield and seed quality than BARI Barley 4. Grain yield from BARI Barley 5 and BARI Barley 4 were 4.59 t ha-1 and 4.24 t ha-1 , respectively. Significantly, the highest 1000-seed weight (46.90 g) was produced by BARI Barley 5 than (37.90 g) BARI Barley 4. The result revealed that harvesting time had significant effect on yield and yield attributes and seed quality parameters. Seed yield was highest (4.65 t ha-1 ) when the crop harvested at 40 DAA and it was increased linearly from 35 DAA. Maximum quality seed and 1000-seed weight (43.20 g) was obtained when the crop harvested at 40 DAA. All the yields, yield attributes and seed quality parameters were significantly influenced by nitrogen levels. The highest grain yield (5.14 t ha-1 ) was obtained when BARI Barley 5 variety was fertilized by 100 kg N ha-1 and the lowest (3.14 t ha-1 ) was obtained from control treatments. Normal seeds spike-1 , vigour index, germination (%) were better at 85 kg N ha-1 in variety of BARI Barley 5 than BARI Barley 4. So it can be concluded that BARI Barley 5 showed better result when fertilized with 100 kg N ha-1 and harvested at 40 DAA for getting maximum yield and 85 kg N ha-1 and harvested at 40 DAA for getting better quality seed.

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