Seed protein content of soybean as affected by spatial variation in field experiments

1996 ◽  
Vol 115 (6) ◽  
pp. 501-507 ◽  
Author(s):  
J. Vollmann ◽  
T. El Hadad ◽  
R. Gretzmacher ◽  
P. Ruckenbauer
Keyword(s):  
Spatial Variation ◽  
Protein Content ◽  
Field Experiments ◽  
Seed Protein ◽  
Seed Protein Content

scholarly journals Modeling the Competitive Effect of Euphorbia dracunculoides and Astragalus sp. in Zero Input Rainfed Chickpea

2018 ◽  
Vol 36 (0) ◽  
Author(s):  
R.M. IKRAM ◽  
A. TANVEER ◽  
R. MAQBOOL ◽  
M.A. NADEEN
Keyword(s):  
Protein Content ◽  
Critical Period ◽  
Field Experiments ◽  
Seed Protein ◽  
Yield Loss ◽  
Seed Protein Content ◽  
Yield Losses ◽  
Competition Period ◽  
Crop Competition ◽  
Weed Removal

ABSTRACT: Brown chickpea (Cicer arietinum L.) is one of the two chickpea types grown in Pakistan and other countries. The critical period for weed removal in a rainfed chickpea system is an important consideration in devising weed management strategies. Field experiments were conducted in the winter season of 2011 and 2012 to determine the extent of yield loss with different periods of weed crop competition. Seven weed crop competition periods (0, 45, 60, 75, 90, 105 and 160 days after sowing - DAS) were used to identify the critical period for weed removal in rainfed chickpea. Experimental plots were naturally infested with Euphorbia dracunculoides and Astragalus sp. in both years. Individual, composite density and dry weights of E. dracunculoides and Astragalussp. increased significantly with an increase in the competition period. However, yield and yield-contributing traits of chickpea significantly decreased with an increase in the competition period. Chickpea seed yield loss was 11-53% in different weed crop competition periods. Euphorbia dracunculoides and Astragalus sp. removed 39.9 and 36.9 kg ha-1 of N, 9.61 and 7.27 kg ha-1 of P and 38.3 and 36.9 kg ha-1 of K, respectively. Season long weed competition (160 days after sowing) resulted in 19.5% seed protein content compared with 24.5% seed protein content in weed-free chickpea. A Logistic equation was fitted to yield data in response to increasing periods of weed crop competition. The critical timing of weed removal at 5 and 10% acceptable yield losses were 26 and 39 DAS, respectively. The observed critical period suggests that in rainfed chickpea, a carefully timed weed removal could prevent grain yield losses.

The effect of N and P fertilization on growth, seed yield and quality of industrial hemp in the Parkland region of Saskatchewan

2004 ◽  
Vol 84 (4) ◽  
pp. 939-947 ◽  
Author(s):  
C. L. Vera ◽  
S. S. Malhi ◽  
J. P. Raney ◽  
Z. H. Wang
Keyword(s):  
Protein Content ◽  
Plant Height ◽  
Seed Yield ◽  
Field Experiments ◽  
Seed Protein ◽  
Seed Quality ◽  
Cannabis Sativa ◽  
Seed Protein Content ◽  
Nitrate N ◽  
Industrial Hemp

Industrial hemp (Cannabis sativa L.) has sparked renewed interest in western Canada in recent years, and there is very little research information available on its fertilizer requirements. The objective of this study was to determine the effect of surface-broadcast ammonium nitrate and seedrow placed monoammonium phosphate fertilizers on the production and seed quality attributes of industrial hemp (cv. Fasamo and Finola). Field experiments were conducted on a Black Chernozem silty loam soil at Melfort, Saskatchewan, Canada, in 2000, 2001 and 2002. Increasing N rates significantly increased plant height, biomass, seed yield and seed protein content of hemp in all years. Seed-applied P fertilizer increased plant height in all years, and biomass in 2000, but reduced plant density, biomass and seed yield in 2001 and 2002. Finola consistently had lower plant height, earlier maturity, heavier seeds, and higher seed yield, seed protein content and seed oil content than Fasamo. The average amount of nitrate-N in the 0–60 cm soil was 40 kg N ha-1. Seed yield kg-1 of N was 9.4, 5.9, 4.5 and 3.7 kg ha-1 for Fasamo, and 10.6, 7.7, 6.0 and 4.5 kg ha-1 for Finola, respectively, at 40, 80, 120 and 160 kg ha-1 of soil plus fertilizer N. Key words: Fertilizer, hemp, nitrogen, phosphorus, rainfall, soil extractable P, soil nitrate-N, cultivars

scholarly journals A Rapid Method for Measuring Seed Protein Content in Cowpea (<i>Vigna unguiculata</i> (L.) Walp)

2017 ◽  
Vol 08 (10) ◽  
pp. 2387-2396 ◽  
Author(s):  
Yuejin Weng ◽  
Ainong Shi ◽  
Waltram Second Ravelombola ◽  
Wei Yang ◽  
Jun Qin ◽  
...  
Keyword(s):  
Protein Content ◽  
Rapid Method ◽  
Vigna Unguiculata ◽  
Seed Protein ◽  
Seed Protein Content

Genomic Selection for Yield and Seed Protein Content in Soybean: A Study of Breeding Program Data and Assessment of Prediction Accuracy

Crop Science ◽  
2017 ◽  
Vol 57 (3) ◽  
pp. 1325-1337 ◽  
Author(s):  
Alexandra Duhnen ◽  
Amandine Gras ◽  
Simon Teyssèdre ◽  
Michel Romestant ◽  
Bruno Claustres ◽  
...  
Keyword(s):  
Protein Content ◽  
Genomic Selection ◽  
Prediction Accuracy ◽  
Seed Protein ◽  
Breeding Program ◽  
Seed Protein Content ◽  
Selection For ◽  
Program Data

scholarly journals Intra-plant variation in seed weight and seed protein content of cowpea

2019 ◽  
Vol 23 (1) ◽  
pp. 103-113 ◽  
Author(s):  
Kohtaro Iseki ◽  
Olajumoke Olaleye ◽  
Haruki Ishikawa
Keyword(s):  
Protein Content ◽  
Seed Weight ◽  
Seed Protein ◽  
Seed Protein Content ◽  
Plant Variation

scholarly journals Seed Protein Content and Consistency of Tofu Prepared with Different Magnesium Chloride Concentrations in Six Japanese Soybean Varieties

2003 ◽  
Vol 53 (3) ◽  
pp. 217-223 ◽  
Author(s):  
Kyoko Toda ◽  
Tomotada Ono ◽  
Keisuke Kitamura ◽  
Makita Hajika ◽  
Koji Takahashi ◽  
...  
Keyword(s):  
Protein Content ◽  
Magnesium Chloride ◽  
Seed Protein ◽  
Seed Protein Content ◽  
Chloride Concentrations

Influence of globulin subunit composition of soybean proteins on silken tofu quality. 2. Absence of 11SA4 improves the effect of protein content on tofu hardness

2014 ◽  
Vol 65 (3) ◽  
pp. 268 ◽  
Author(s):  
Andrew T. James ◽  
Aijun Yang
Keyword(s):  
Protein Content ◽  
Genetic Background ◽  
Seed Protein ◽  
Subunit Composition ◽  
Seed Protein Content ◽  
Soybean Variety ◽  
Soybean Proteins ◽  
Tofu Quality ◽  
The Impact

Soybean variety Bunya was developed in Australia to provide a better quality bean for tofu manufacturers. It is null for globulin subunit 11SA4. We investigated the effect of both the Bunya genetic background and the11SA4 subunit on tofu properties using genotypes containing 11SA4, with and without Bunya parentage, or lacking 11SA4 with Bunya parentage. Both Bunya parentage and 11SA4 significantly influenced globulin subunit composition and tofu texture. The group lacking 11SA4 had lower seed protein content, the largest seeds and the highest 7S and the lowest 11S content and produced the hardest tofu. Examination of the impact of 11SA4 null on tofu texture at four protein contents (380–440 g kg–1) over four coagulant (2.0–3.5 g kg–1) levels revealed that the absence of 11SA4 produced firmer tofu across the protein and coagulation levels tested, and this difference was larger than that from higher protein or coagulation levels. These results demonstrated that the absence of the 11SA4 subunit could increase tofu hardness to a level that otherwise could only be achieved with much higher seed protein content.

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