Influence of year and row spacing on yield component andseed yield in Alfalfa (Medicago sativa L.)

2016 ◽  
Author(s):  
Wenxu Zhang ◽  
Fangshan Xia ◽  
Yin Li ◽  
Mingya Wang ◽  
Peisheng Mao
Keyword(s):  
Seed Yield ◽  
Yield Components ◽  
Northwest China ◽  
Yield Component ◽  
Row Spacing ◽  
Growing Seasons ◽  
Seed Yield Components ◽  
Alfalfa Seed ◽  
Medicago Sativa L ◽  
Semi Arid

A 5 year field experiment was conducted to investigate the influence of different yearly climatic features and row spacing on seed yield and seed yield components during the 2008-2012 growing seasons in semi-arid soils in northwest China. Rows pacing treatments were 30, 60, 90, and 120 cm. Seed yield and some seed yield components were determined for all treatments. The year affected seed yield components markedly, but row spacing except for the quantity of seeds per pod. The interaction of year and row spacing have a significant impact on racemes per square meter and seed yield (P less than 0.05). The highest seed yield was gained in the fifth year (409.83 kg ha-1) with 60 cm row spacing (456.30kg ha-1). These results indicated that alfalfa should be planted with 60cm row spacing, which was most productive for improving the alfalfa seed yield in semi-arid lands.

scholarly journals Genetic variation for seed yield components of Westerwold ryegrass (Lolium multiflorum var. westerwoldicum).

1989 ◽  
Vol 37 (2) ◽  
pp. 119-127 ◽  
Author(s):  
A. Elgersma ◽  
A.P.M. Den Nijs ◽  
F.A. Van Eeuwijk
Keyword(s):  
Genetic Variation ◽  
Seed Yield ◽  
Yield Components ◽  
Lolium Multiflorum ◽  
Genotypic Variation ◽  
Yield Component ◽  
Path Analyses ◽  
Seed Yield Components ◽  
High Heritability ◽  
1000 Grain Weight

Genetic variation for seed yield components was studied in 4 diploid varieties of Westerwold ryegrass, and 19 genotypes from each variety were grown in the field in 2 clonal replicate rows (minirows). The number of inflorescences/minirow, the numbers of spikelets/inflorescence and florets and seeds/spikelet, 1000-grain weight and seed yield/minirow were determined. Floret site utilization (FSU) was calculated as (seeds/floret) x 100%. Genotypic variation and heritabilities were calculated. Correlation studies and path analyses were carried out in each variety separately. Among varieties, no significant differences occurred for seed yield. However, within varieties large genetic variation was present for both seed yield and yield components. Path analyses revealed that relationships between seed yield components differed to a great extent among varieties. FSU was the major yield component in 3 varieties, but in one variety inflorescence number was the most important yield component. There was ample scope for genetic improvement of seed yield. FSU had a very high heritability and was not correlated with any of the other seed yield components. (Abstract retrieved from CAB Abstracts by CABI’s permission)

SEED YIELD COMPONENTS IN WHITE CLOVER

1979 ◽  
Vol 59 (3) ◽  
pp. 713-715 ◽  
Author(s):  
D. M. HUXLEY ◽  
V. C. BRINK ◽  
G. W. EATON
Keyword(s):  
Seed Size ◽  
Seed Yield ◽  
White Clover ◽  
Trifolium Repens ◽  
Yield Components ◽  
Yield Component ◽  
Seed Yield Components ◽  
Significant Yield ◽  
Trifolium Repens L

Components of seed yield were studied in white clover (Trifolium repens L.). Head number and seed size were the major components of yield. Seeds per head was not a significant yield component and was independent of head number.

Variability and Correlation Between the Seed Yield, Seed Yield Components and Quality of Alfalfa Seed

2010 ◽  
pp. 347-352
Author(s):  
Rade Stanisavljevic ◽  
Jasmina Milenkovic ◽  
Jasmina Radovic ◽  
Dragoslav Djokic ◽  
Dragan Terzic ◽  
...  
Keyword(s):  
Seed Yield ◽  
Yield Components ◽  
Seed Yield Components ◽  
Alfalfa Seed

scholarly journals Effect of Row Spacing and Seeding Rate on Yield Component and Seed Yield of Alfalfa (Medicago sativa L.)

2010 ◽  
Vol 2 (1) ◽  
pp. 74-80 ◽  
Author(s):  
Gholamreza ABADOUZ ◽  
Abdollah HASANZADEH GORTTAPEH ◽  
Abdol Amir RAHNEMA ◽  
Adela BEHRADFAR
Keyword(s):  
Medicago Sativa ◽  
Seed Yield ◽  
Yield Component ◽  
Row Spacing ◽  
Seeding Rate ◽  
Medicago Sativa L

scholarly journals Responses of Seed Yield Components to the Field Practices for Regulating Seed Yield of Smooth Bromegrass (Bromus inermis Leyss.)

Agriculture ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 940
Author(s):  
Chengming Ou ◽  
Mingya Wang ◽  
Longyu Hou ◽  
Yangyang Zhang ◽  
Ming Sun ◽  
...  
Keyword(s):  
Seed Yield ◽  
Yield Components ◽  
Bromus Inermis ◽  
Row Spacing ◽  
Smooth Bromegrass ◽  
Agronomic Practices ◽  
Seed Yield Components ◽  
Key Factor ◽  
Negative Effect ◽  
Phosphorus Application

Agronomic practices improve seed yield by regulating seed yield components, and the relationship between seed yield and seed yield components is still unclear in smooth bromegrass (Bromus inermis). To optimize seed production and yield in smooth bromegrass, a five-year field trial was designed with split-split-plot to study the combined effects of row spacing (30, 45, 60, and 75 cm), phosphorus (0, 60, 90, and 120 kg P ha−1) and nitrogen (0 and 100 kg N ha−1) on seed yield and seed yield components including fertile tillers m−2 (FTs), spikelets per fertile tiller (SFT), florets per spikelet (FS), and seeds per spikelet (SS). The results showed that FTs as a key factor had a positive effect to seed yield with the biggest pathway coefficient, while SS had a negative effect. Meanwhile, an interaction effect between FTs and SS was observed. FS and SS were increased with phosphorus application under the condition of sufficient nitrogen. In addition, sufficient precipitation at the non-growing season resulted in more FTs in the next year in rain-fed regions. Therefore, the optimum seed yield of smooth bromegrass can be obtained with row spacing (45 cm), nitrogen (100 kg N ha−1), and phosphorus application (60 kg P ha−1).

Effects of row spacing and plant growth regulation on alfalfa seed yield (Medicago sativa L.)

2020 ◽  
Vol 52 (5) ◽  
Author(s):  
Duro Pajcin ◽  
Savo Vuckovic ◽  
Vera Popovic ◽  
Aleksandar Simic ◽  
Sandra Popovic ◽  
...  
Keyword(s):  
Plant Growth ◽  
Medicago Sativa ◽  
Seed Yield ◽  
Growth Regulation ◽  
Row Spacing ◽  
Plant Growth Regulation ◽  
Alfalfa Seed ◽  
Medicago Sativa L

Influence of Row Spacing and P and N Applications on Seed Yield Components and Seed Yield of Siberian Wildrye (Elymus sibiricusL.)

Crop Science ◽  
2017 ◽  
Vol 57 (4) ◽  
pp. 2205-2212 ◽  
Author(s):  
Mingya Wang ◽  
Longyu Hou ◽  
Qiang Zhang ◽  
Xiaona Yu ◽  
Li Zhao ◽  
...  
Keyword(s):  
Seed Yield ◽  
Yield Components ◽  
Row Spacing ◽  
Seed Yield Components

scholarly journals Effect of Row Spacing on Seed Yield, Yield Components and Seed Quality of Alfalfa

2015 ◽  
Vol 15 (1) ◽  
pp. 85
Author(s):  
Dragoljub Beković ◽  
Rade Stanisavljević ◽  
Milan Biberdžić ◽  
Slaviša Stojković ◽  
Jasmina Knežević
Keyword(s):  
Seed Yield ◽  
Yield Components ◽  
Seed Weight ◽  
Seed Quality ◽  
Germination Rate ◽  
Row Spacing ◽  
Grain Number ◽  
Alfalfa Seed ◽  
Thousand Seed Weight

Under agro-environmental conditions of Southern Serbia, the re­search was conducted over a three-year period to evaluate the effect of row spacing on seed yield, yield components and seed quality of alfalfa cv. ’K-23’. The average seed yield of alfalfa was highest at a row spacing of 40 cm (271.7 kg ha-1), followed by row spacing of 20 cm (249.4 kg ha-1) and 60 cm (244.0 kg ha-1). The highest and lowest number of inflo­rescences per stem were obtained in rows spaced 60 cm (13.37 inflo­rescences/stem) and 20 cm apart (8.57 inflorescences/stem), respectively. The widest row spacing of 60 cm (7.15 pods / inflorescence) resulted in the highest number of pods per inflorescence, whereas the lowest number was produced at 20 cm spacing (5.50 pods / inflorescence). Grain number per pod ranged from 3.55 (at 20 cm row spacing) to 4.05 (at 60 cm). The highest quality of alfalfa seed during the three years of the research was obtained at the widest row spacing (60 cm). Thousand-seed weight was highest at 60 cm and lowest at 20 cm (1.97 g and 2.07 g, respectively). The highest average values for seed germination rate were reported for 60 cm row spa­cing (88.00%) and the lowest for 20 cm row spacing (85.76 %).

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