Growth and yield in Lupinus angustifolius are depressed by early transient nitrogen deficiency

1998 ◽  
Vol 49 (5) ◽  
pp. 811 ◽  
Author(s):  
Qifu Ma ◽  
Nancy Longnecker ◽  
Neil Emery ◽  
Craig Atkins
Keyword(s):  
Seed Yield ◽  
N2 Fixation ◽  
Harvest Index ◽  
Nitrogen Deficiency ◽  
Lupinus Angustifolius ◽  
Growth And Yield ◽  
Sand Culture ◽  
Floral Initiation ◽  
Mineral N ◽  
N Deficiency

Yield and harvest index of narrow-leafed lupin (Lupinus angustifolius L.) are variable, and factors affecting their reliability have not been clearly identified. In this study, plants were grown in sand culture and were non-nodulated and supplied with mineral nitrogen (N) or acquired N through symbiotic N2 fixation. Transient N deficiency was imposed a number of times during development in nodulated plants by flushing pure O2 to the roots to suppress N2 fixation and in non-nodulated plants by changing the rate of N addition. Low N supply (0·4 mM) before floral initiation or for 2 weeks during floral initiation caused a reduction in seed yield. Transient N deficiency induced by O2 flush during early growth (Weeks 6 and 7 after sowing) had a marked effect on vegetative growth, the number of main stem flowers, pod set, and seed yield. The early N deficiency also affected shoot and root N concentrations and total cytokinin concentrations in root exudate. Compared with N2-fixing plants, those supplied with adequate mineral N had a greater flower number and greater branch growth and biomass, but not higher pod set and seed yield, resulting in lower harvest index. Seed N concentrations were also decreased by transient N deficiencies at early (floral initiation), mid (flowering), and late (grain filling) stages. These findings indicate that any field conditions which transiently reduce N2 fixation (e.g. temporary waterlogging or drought) are likely to result in lower grain yield and quality of lupin crops.

scholarly journals Growth and Yield Performance of Bari Mung-5 Under Different Time of Sowing

2012 ◽  
Vol 36 (2) ◽  
pp. 227-231
Author(s):  
Nargis Jahan ◽  
M M Golam Adam
Keyword(s):  
Seed Yield ◽  
Yield Components ◽  
Seed Weight ◽  
Harvest Index ◽  
Dry Matter ◽  
Growth And Yield ◽  
Lower Yield ◽  
Sowing Time ◽  
Academy Of Sciences ◽  
Pod Length

A field experiment was carried out at University of Dhaka from March to July, 2011 to study the effect of time of sowing on the growth and yield of BARI mung-5. The treatments consisted of three dates of sowing viz. March 15, April 15 and May 15. The crop responded significantly to sowing time and 15 April sowing seeds produced plants having maximum plant height (68.4 cm), leaves/plant (29.33), total dry matter/plant (17.99), branches/plant (8.17), pods/plant (11.33), pod length (8.78 cm), seeds/pod (11.17), 1000 seed weight (46.52 g), seed yield/plant (5.33 g), yield/ha (1.77 t) and harvest index (29.58 %) at harvest. The seed yield decreased by 36.8 and 49.9% when seed sown early (15 March) or late (15 May) due to production of lower yield components.   DOI: http://dx.doi.org/10.3329/jbas.v36i2.12966   Journal of Bangladesh Academy of Sciences, Vol. 36, No. 2, 227-231, 2012    

scholarly journals RESPONSE OF SULPHUR AND ZINC NUTRITION TO THE SEED YIELD AND OIL CONTENT OF MUSTARD (CV. BARI SARISHA-14)

2020 ◽  
Vol 1 (2) ◽  
pp. 52-56
Author(s):  
Rashida Sultana ◽  
Swapan Kumar Paul ◽  
Md. Abdur Rahman Sarkar ◽  
Shubroto Kumar Sarkar
Keyword(s):  
Seed Yield ◽  
Harvest Index ◽  
Oil Content ◽  
Growth And Yield ◽  
Control Treatment ◽  
Stover Yield ◽  
Zinc Nutrition ◽  
Four Levels ◽  
Number Of Branches

The role of different nutrient elements is well established in plant metabolism. However, different crops respond differently in relation to their growth and yield. An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh to evaluate the response of sulphur and zinc nutrition to the seed yield and oil content of mustard (cv. BARI Sarisha-14). It, laid out in RCBD with three replications was consisted of four levels of sulphur (0, 20, 40 and 60 kg ha-1) and Zn (0, 1, 2, 3 kg ha-1). It was observed that 60 kg Sulphur ha-1 gave significantly highest seed yield, oil content and harvest index owing to the highest number of branches plant-1, siliqua plant-1, seeds siliqua-1 and 1000-seed weight. Conversely, 0 kg Sulphur ha-1 provided the lowest seed yield and oil content of mustard. Again, the highest number of braches plant-1, siliqua plant-1 and seeds siliqua-1 was found at 3 kg zinc ha-1 which resulted in the highest seed yield, oil content and harvest index. The lowest performance of the yield components and yield was observed at 0 kg zinc ha-1. Interaction effect between 60 kg sulphur ha-1 and 3 kg zinc ha-1 provided the highest seed yield and stover yield because of the highest number of branches plant-1 and seeds siliqua-1 and the worst yield performance was a observed at the control treatment. Therefore, the application of sulphur and zinc at the rate of 60 kg ha-1 and 3 kg ha-1, respectively could be applied for BARI sarisha-14 for higher seed yield.

scholarly journals Effect of foliar application of nutrients on growth and yield of cowpea [Vigna unguiculata (L.) Walp]

2019 ◽  
Vol 34 (01) ◽  
Author(s):  
Ramkesh . Patel ◽  
G. S. Rawat ◽  
Rahul . Dhakad
Keyword(s):  
Salicylic Acid ◽  
Seed Yield ◽  
Harvest Index ◽  
Foliar Application ◽  
Growth And Yield ◽  
Flower Initiation ◽  
College Of Agriculture ◽  
Coated Urea ◽  
Monetary Return ◽  
Research Experiment

A research experiment was conducted during kharif season of 2017 at College of Agriculture, Research farm Gwalior (M.P.) under Department of Agronomy. On the basis of results obtained the treatment neem coated urea 2% spray at flower initiation gave significantly higher seed yield (1456 kg/ha), net monetary return (‘ 74396/ha), BCR (4.30) and harvest index (27.63%) as compared to other treatments but at par with treatment NPK (19 : 19 : 19) 2% spray at flower initiation and neem coated urea 2% + salicylic acid 75 ppm spray at flower initiation treatment.

scholarly journals Effect of phosphorus on growth and yield of sesame

2019 ◽  
Vol 6 (2) ◽  
pp. 245-251
Author(s):  
Nushrat Jahan ◽  
ABM Shafiul Alam ◽  
Atiya Sharmin Mitu ◽  
Md Ahasan Habib ◽  
Md Sefaur Rahman
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Seed Weight ◽  
Harvest Index ◽  
Block Design ◽  
Growth And Yield ◽  
Stover Yield ◽  
Biological Yield ◽  
Number Of Leaves ◽  
P Application

The present study was conducted at the Research farm of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka, during March to June 2014 to examine the effect of Phosphorus on the growth and yield of Sesame. BARI Til-3 variety was used for the study. This experiment was consisted of single factor eg. phosphorus. There were three levels of phosphorus viz. (i) P0 (0 % P), (ii) P1 (20 % P) and (iii) P2 (30 % P) and the experiment was laid out in a Randomized Complete Block Design (RCBD) with six replications. Different levels of phosphorus showed significant effect on growth and yield of sesame. Individually phosphorus had significant effect on highest plant height, number of leaves plant-1, number of primary branches plant-1, number of secondary branches plant-1, number of capsule plant-1, number of seeds capsule-1, 1000 seed weight, seed yield and harvest index. The highest plant height of sesame (136.30 cm), the highest no leaves plant-1 of sesame (34.44), number of primary branches plant-1 (5.56), number of secondary branches plant-1 (7.61), number of capsule plant-1 (25.87), number of seed capsule-1 (70.47),1000 seed weight (3.54), Seed yield (1581.00 kg ha-1), Stover yield (3034.42 kg ha-1), biological yield (4615.76), harvest index (34.11%), oil content (43.92%) was recorded from P1. Again, the highest days to first flowering of sesame (31.67) was recorded from P1 (20 % P) but the highest days to maturity was (85.67) recorded from P2 (30% P). Application of P at different percentage is causing effect in growth and yield of sesame. Res. Agric., Livest. Fish.6(2): 245-251, August 2019

Effect of split application of sulphur and nitrogen on growth and yield attributes of Brassica genotypes differing in time of flowering

1999 ◽  
Vol 79 (2) ◽  
pp. 175-180 ◽  
Author(s):  
Altaf Ahmad ◽  
Y. P. Abrol ◽  
M. Z. Abdin
Keyword(s):  
Leaf Area ◽  
Seed Yield ◽  
Photosynthetic Rate ◽  
Harvest Index ◽  
Biomass Accumulation ◽  
Growth And Yield ◽  
Split Application ◽  
Area Index ◽  
Yield Attributes ◽  
Biological Yield

According to prevalent agronomic practices for cultivation of Brassica genotypes, N is applied in split doses, while S is applied as a basal dose. This may create imbalance in the supply of these nutrients during the growth and development of the crop because metabolism of N and that of S are closely linked and play a central role in protein synthesis. The requirement of one depends on the supply of the other, and the imbalance in their supply causes a reduction in the yield because of reduced uptake and assimilation of the two nutrients. In the present investigation, therefore, S was applied in split doses, along with N, to study its effect on growth and yield attributes of Brassica juncea (L.) Czern. and Coss. (V1) and Brassica campestris L. (V2). In the experiment, conducted in the field, 40 kg S ha−1 as CaSO4 (gypsum) was applied either in a single basal application (S1) or in two (S2) or three (S3) split applications; and 100 kg N ha−1 as urea was applied either in two (N2) or three (N3) splits. Biomass accumulation, leaf-area index (LAI), leaf-area duration (LAD), crop growth rate (CGR) and photosynthesis in the leaves were determined at various phenological stages. Split application of S and N (S2N2 or S3N3) resulted in significant improvement in growth and yield of both the genotypes compared with the application of S in a single basal application and N in two splits (S1N2). Genetic variability was observed between the two genotypes in response to split application of S and N. V1 responded better when S and N was applied in two split doses (S2N2) than when it was applied as S1N2 or S3N3 This S2N2 treatment resulted in 40.0, 39.7, 35.5, 48.2 and 18.1% enhancement in biomass accumulation, LAI, LAD, CGR and photosynthetic rate, respectively in comparison with S1N2. Seed yield, biological yield and harvest index were improved by 38.3, 26.3 and 9.5%, respectively, by S2N2 over the results obtained with S1N2. In the case of V2, three split applications of S and N (S3N3) resulted in maximum growth and yield. Increases in biomass accumulation, LAI, LAD, CGR and photosynthetic rate due to application of S3N3 were 48.4, 81.3, 77.9, 101.1 and 28.6% respectively, over the results of S1N2. Seed yield, biological yield and harvest index improved by 41.3, 26.9 and 11.6% respectively, with this treatment.On the basis of results obtained in this study, it can be concluded that S must be applied in split doses for optimum growth and yield of Brassica genotypes. The variability in response of these genotypes to split application of S and N was due to differences in flowering time, as V1 flowered earlier (just after the application of the second dose of S and N) than V1 (just after the application of the third dose of S and N). Key words: Brassica genotypes, nitrogen, sulphur, split application, growth, yield

scholarly journals Rhizobium Inoculation and Chemical Fertilisation Improve Faba Bean Yield and Yield Components in Northwestern Ethiopia

Agriculture ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 678
Author(s):  
Getenesh Genetu ◽  
Markku Yli-Halla ◽  
Mekonnen Asrat ◽  
Mihiret Alemayehu
Keyword(s):  
Seed Yield ◽  
Faba Bean ◽  
N2 Fixation ◽  
Management Practices ◽  
Maximum Yield ◽  
Economic Feasibility ◽  
Substantial Contribution ◽  
Mineral N ◽  
Combined Use ◽  
Chemical Fertiliser

The productivity of the faba bean has declined in Ethiopia, owing to poor management practices, such as blanket fertilisation. In 2018, a field experiment was conducted in a Nitisol soil during the main cropping season in Northwestern Ethiopia, to determine the amount of chemical fertiliser and Rhizobium inoculant to be used for the optimum yield within economic feasibility. The experiment consisted of a factorial combination of five rates of blended NPSZnB fertiliser (0, 60, 121, 180 and 240 kg ha−1) and three rates of inoculant (0, 500 and 750 g ha−1). Sole chemical fertilisation, as well as inoculation, individually produced a seed yield of 2.3–2.5 t ha−1, about 1.0–1.2 t ha−1 more than the control. However, the maximum seed yield (3.3 t ha−1) was recorded from the combined application of both the chemical fertiliser and the inoculant. The seed yield correlated closely with the number of active nodules (R2 = 0.78 **), suggesting a substantial contribution of symbiotic N2 fixation. Inoculation increased the N content of the seed yield by at least 30 kg ha−1. Chemical fertilisation, containing at least 44 kg ha−1 of mineral N does not appear to have an adverse effect on N2 fixation. The combined use of 180 kg ha−1 blended fertiliser with 750 g ha−1 inoculant, producing a maximum net profit of 72,918 birr ha−1 (EUR 2232), is recommended for the study area. This study emphasises that (1) inoculation alone can produce as much seed as the maximum rate of chemical fertilisation, but (2) the maximum yield was produced with a combined use of inoculant and chemical fertiliser, by promoting the vigour of the nodules and N2 fixation.

scholarly journals Growth and yield response of sesame (sesamum indicum L.) variety s-9 under foliar nitrogen doses at different application times

2019 ◽  
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Harvest Index ◽  
Block Design ◽  
Sesamum Indicum ◽  
Growth And Yield ◽  
Control Treatment ◽  
Yield Response ◽  
Foliar Nitrogen ◽  
Seed Index

Present study was carried out to determine the yield and growth of sesame (sesamum indicum L.) variety S-9 under foliar nitrogen doses at different application times at Sindh Agriculture University Tandojam. The experiment had been placed in a Randomized Complete Block Design with net plot size (6m2 ) with three replication. The sesame variety S-9 was used and checked under various foliar nitrogen doses at different application time treatments i.e. T1= N @ 00 kg ha-1 (control), T2= N @ 0.5 kg ha-1 (30 DAS), T3= N @ 0.5 kg ha-1 (45 DAS), T4= N @ 0.5 kg ha-1 (60 DAS), T5= N @ 1.0 kg ha-1 (30 DAS), T6= N @ 1.0 kg ha-1 (45 DAS), T7= N @ 1.0 kg ha-1 (60 DAS), T8= N @ 1.5 kg ha-1 (30 DAS), T9= N @ 1.5 kg ha-1 (45 DAS), T10= N @ 1.5 kg ha-1 (60 DAS). The results revealed that maximum values for sesame traits under study were i.e. Plant height (122.38 cm), Branches plant-1 (34.45), Capsules plant-1 (194.60), capsule length (2.65 cm), Seeds capsules-1 (56.3), Seed wt plant-1 (76.31 g), Seed index (5.69, 1000 seed wt g), Seed yield (1233.3 kg ha-1), Harvest index (11.12%), were recorded under treatment T10= N @ 1.5 kg ha-1 (60 DAS), whereas; minimum values for various sesame traits i.e. Plant height (80.57 cm), Branches plant-1 (15.47), Capsules plant-1 (130.31), Capsules length (1.30 cm), Seeds capsules-1 (30.5), Seed wt plant-1 (50.57 g), Seed index (3.34, 1000 seed wt g), Seed yield (711.7 kg ha-1), Harvest index (6.23%), in control treatment where no foliar nitrogen doses was applied. It was concluded that growth and yield increased at T10= N @ 1.5 kg ha-1 (60 DAS) and thus recommended for better performance and yield of sesame crop. Key words: sesame, Yield, foliar, nitrogen, Application

scholarly journals Performance of blackgram (Phaseolus mungo L.) cultivars as influenced by row spacings and molybdenum

2018 ◽  
Vol 10 (2) ◽  
pp. 753-758
Author(s):  
Ravi Kumar ◽  
G. S. Tomar ◽  
Narendra Kumawat ◽  
Jagdeesh Morya
Keyword(s):  
Seed Yield ◽  
Economic Efficiency ◽  
Harvest Index ◽  
Production Efficiency ◽  
Growth And Yield ◽  
Plant Seed ◽  
Maximum Production ◽  
Plant Seeds ◽  
Biological Yield ◽  
Number Of Leaves

A field trial was conducted to assess the performance of blackgram cultivars to row spacings and molybdenum doses at the Instructional-cum-Research Farm, Indira Gandhi Krishi Vishwavidyalya, Raipur (Chhattisgarh), under rainfed conditions during kharif season of 2011. The treatments comprised of three varieties viz., Indra urd-1, RU-03-16 and RU-03-52; two row spacings viz., 30x10 cm and 45 x 10 cm and three treatments of molybdenum viz., control, 4 g/kg seed and 4 g/kg seed + two spray of  urea @ 2%. The experiment was laid out in factorial randomized block design (FRBD) with three replications. Results revealed that all the growth and yield attibutes such as number of branches/plant, number of leaves/plant, seeds/plant, seed yield (781 kg/ha), biological yield (2736 kg/ha) and harvest index (29.71%) noticed significantly higher under cultivar Indra urd-1. Similarly, maximum production efficiency (9.52 kg/ha/day), economic efficiency (Rs. 218.82/ha/day) and gross returns (Rs. 32,335/ha) were also recorded in Indra urd-1 as compared to rest of the cultivars. Further results showed that all the growth and yield attributes viz., number of  branches/plant, number of leaves/plant, seeds/plant, seed yield (778 kg/ha), biological yield (2653 kg/ha) and harvest index (29.10%) recorded significantly higher in row spacing of 30 x 10 cm as compared to 45 x 10 cm. Maximum production efficiency (9.49 kg/ha/day), economic efficiency (Rs. 216.44/ha/day) and gross returns (Rs. 32,107/ha) were also recorded in 30 x 10 cm. Application of molybdenum @ 4 g/kg seed along with 2% urea spray twice gave highest seed yield (810 kg/ha), biological yield (2698 kg/ha) and harvest index (29.25%) over control and seed treatment with molybdenum @ 4 g/kg. Similarly, application of molybdenum + 2% urea spray twice gave maximum production efficiency (9.88 kg/ha/day), economic efficiency (Rs. 226.49/ha/day) and gross returns (Rs. 33,293/ha).

scholarly journals Growth, Pod, and Seed Yield, and Gas Exchange of Hydroponically Grown Peanut in Response to CO2 Enrichment

HortScience ◽  
2000 ◽  
Vol 35 (1) ◽  
pp. 49-52 ◽  
Author(s):  
K. Stanciel ◽  
D.G. Mortley ◽  
D.R. Hileman ◽  
P.A. Loretan ◽  
C.K. Bonsi ◽  
...  
Keyword(s):  
Gas Exchange ◽  
Seed Yield ◽  
Harvest Index ◽  
Co2 Enrichment ◽  
Branch Length ◽  
Growth And Yield ◽  
Positive Effects ◽  
Growth Chambers ◽  
Total Seed ◽  
Hydroponically Grown

The effects of elevated CO2 on growth, pod, and seed yield, and gas exchange of `Georgia Red' peanut (Arachis hypogaea L.) were evaluated under controlled environmental conditions. Plants were exposed to concentrations of 400 (ambient), 800, and 1200 μmol·mol–1 CO2 in reach-in growth chambers. Foliage fresh and dry weights increased with increased CO2 up to 800 μmol·mol–1, but declined at 1200 μmol·mol–1. The number and the fresh and dry weights of pods also increased with increasing CO2 concentration. However, the yield of immature pods was not significantly influenced by increased CO2. Total seed yield increased 33% from ambient to 800 μmol·mol–1 CO2, and 4% from 800 to 1200 μmol·mol–1 CO2. Harvest index increased with increasing CO2. Branch length increased while specific leaf area decreased linearly as CO2 increased from ambient to 1200 μmol·mol–1. Net photosynthetic rate was highest among plants grown at 800 μmol·mol–1. Stomatal conductance decreased with increased CO2. Carboxylation efficiency was similar among plants grown at 400 and 800 μmol·mol–1 and decreased at 1200 μmol·mol–1CO2. These results suggest that CO2 enrichment from 400 to 800 μmol·mol–1 had positive effects on peanut growth and yield, but above 800 μmol·mol–1 enrichment seed yield increased only marginally.

Biosolids differently affect seed yield, nodule growth, nodule-specific activity, and symbiotic nitrogen fixation of field bean

2017 ◽  
Vol 68 (8) ◽  
pp. 735 ◽  
Author(s):  
S. Pampana ◽  
A. Scartazza ◽  
R. Cardelli ◽  
A. Saviozzi ◽  
L. Guglielminetti ◽  
...  
Keyword(s):  
Seed Yield ◽  
N2 Fixation ◽  
Specific Activity ◽  
Growth Cycle ◽  
Organic N ◽  
Field Bean ◽  
Mineral N ◽  
Plant Parts ◽  
Fixation Activity ◽  
Nodule Growth

The main aim of this research was to verify whether mineral nitrogen (N) continuously released by organic fertilisers during the field bean growth cycle may be sufficiently high to enhance plant growth and seed yield but sufficiently low that it does not negatively affect nodulation and symbiotic N2 fixation. Plants were grown without N fertilisation, and with mineral and organic N (biosolids) fertilisation. All plant parts were collected and dry matter, N content, %Ndfa, and N2 fixed were measured at 8th node, flowering, and maturity stages. Nodule specific activity, N derived from soil, and N remobilisation were estimated. The nitrate concentration of soil was also determined. Biosolids reduced nodule growth, nodule fixation activity, and N2 fixation during the vegetative but not the reproductive phase. During seed filling, nodule fixation activity increased and N2 fixation was roughly twice that of the Control plants. Biosolids increased seed yield by removing the imbalance between N demand and N supply for pod growth. This may be related to an increase in nodule-specific activity due to the reduction in mineral N in the soil.

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