scholarly journals Seed productivity of alfalfa varieties and its components

2020 ◽  
pp. 37-39
Author(s):  
Tatyana Nikolaevna Popova
Keyword(s):  
Correlation Analysis ◽  
Seed Yield ◽  
High Potential ◽  
Herbaceous Plant ◽  
Seed Productivity ◽  
Seed Harvest ◽  
New Varieties ◽  
Alfalfa Varieties ◽  
Number Of Seeds

Alfalfa blue is a perennial, multi-cut herbaceous plant. The expansion of the lucerne sowing areas does not occur due to the lack of sufficient sowing material, which in turn is due to low seed productivity. The solution to this problem is possible only when moving to new varieties with high potential for seed yield and introducing improved technologies. Our article shows the characteristic of new varieties of  alfalfa of the Ershovsky selection. New varieties Serena and Natalie had the highest seed harvest rates in 9 years. Natalie variety on average for 9 years (2009-2017) by the number of brushes on one stem, the number of seeds in the bean and the number of beans in the brush was higher than the Uzen variety-standard by 5.0 respectively; 11.0 and 6.0%. According to the correlation analysis of the indicators, the crop of seeds and seeds in the bean is significant positive.

scholarly journals THE INFLUENCE OF COMPLEX FERTILIZERS AND GROWTH REGULATOR ON SEED PRODUCTIVITY OF AWNLESS BROME

2021 ◽  
Vol 212 ◽  
pp. 33-39
Author(s):  
A. P. Eryashev ◽  
◽  
A. A. Kozlova ◽  
P. A. Eryashev ◽  
◽  
...  
Keyword(s):  
Seed Yield ◽  
Maximum Mass ◽  
Seed Number ◽  
Seed Productivity ◽  
Urban District ◽  
Factor B ◽  
Time Of Application ◽  
The Republic ◽  
Spraying Plants ◽  
Number Of Seeds

The article presents results of the experiments carried out on leached black soils of the Republic of Mordovia to identify the effect of liquid complex fertilizers and Albit on awnless brome seed productivity. For this purpose, a two-factor field experiment was laid on crops of awnless brome on the experimental field No. 1 of OAO “Mordoviyagosplem” in Ozerny village of urban district of Saransk city in 2018 - 2020 according to the following scheme: Factor A – Time of application of liquid complex fertilizers and Albit. 1 - At the beginning of spring growth, 2 - In the phase of stalk-shooting, 3 - In the phase of spring growth + in the phase of stalk-shooting. Factor B - Liquid complex fertilizers and Albit. 1. - Without usage of liquid complex fertilizers and Albit (control). 2. - Megamix-profi. 3. - Megamix nitrogen. 4 - Albit. The results of the research revealed that the height of generative shoots (99 - 105 cm) and the length of panicles (14.6 - 16.9 cm) did not change significantly in case of application of fertilizers and Albit; the maximum number of inflorescences was, in comparison with the control, in case of application of Megamix-profi (28.4 %), Megamix-nitrogen (28.9 %), Albit (27.8 %) at the time of spring growth and at the beginning of stalk-shooting with Albit application ( 30.6 %); the usage of Megamix - profi in the phase of stalk-shooting and growth + stalk-shooting led to a greater seed number in inflorescences (68.2 and 68.6 %). Albit contributed to an increase of the number of generative shoots at all periods of application (141, 137, 144 pieces / m2); the largest number of seeds in an inflorescence was noted when spraying plants with Megamix-profi and Albit at the time of spring growth (101.3 and 100.4 pcs.), Megamix - nitrogen – in the phase of stalk-shooting (101.6 pcs.); the application of Megamix-nitrogen at the time of spring growth promoted the maximum mass of 1,000 seeds (4.17 g); spraying with Megamix-nitrogen (531 - 466 kg / ha) and Albit (507 - 466 kg / ha)at the beginning of spring growth and shooting, as well as with Megamix-profi (508 kg / ha) in the phase of stalk-shooting led to the maximum seed yield , with an advantage over the control by 35.1 - 29.0 %; 18.6 - 17.8 % and 29.2 %

DURATION OF SEED GRASS-STAND USE OF PERENNIAL LEGUMINOUS GRASSES

2021 ◽  
pp. 51-62
Author(s):  
N.I. KASATKINA ◽  
◽  
ZH.S. NELYUBINA ◽  
I.SH. FATYKHOV
Keyword(s):  
Seed Yield ◽  
Red Clover ◽  
First Year ◽  
Seeding Rate ◽  
Seed Productivity ◽  
Grass Stand ◽  
Perennial Legume ◽  
Alfalfa Varieties ◽  
Growing Conditions ◽  
One Year

Seed productivity of perennial leguminous grasses is subject to sharp fluctuations due to their biological characteristics, different reactions to changes in growing conditions, and meteorological factors over the growing season. In this case, the productive longevity of herbs is of great importance. The research aims to analyze the seed productivity and the duration of using the grassstand of perennial legume grasses in the meteorological conditions of the Middle Pre-Urals. The analysis of seed yield, energy, and economic efficiency of long-term use of perennial leguminous grasses was carried out based on a result of studies laid down in the Udmurt Research Institute of Agriculture of the UdmFRC of the UB RAS in 1996–2005 with the eastern Galega variety Gale, in 2011–2015 – with varieties of red clover and variegated alfalfa, in 2011–2016 – with birds-foot trefoil variety Solnyshko. The research found that red clover sowing is best used for seeds for one year. In the first year of use, the yield of double-cut clover varieties was 146 kg/ha, of single-cut varieties – 138 kg/ha. In the second year of using the grass stand, the yield significantly decreased to 37 and 39 kg/ha. The yield of 162 kg/ha at the standard level was formed by the twocut clover variety Dymkovsky. Crops of variegated alfalfa can be used for seeds for two years. Seed productivity of variegated alfalfa varieties in the 1st year of use was 204 kg/ha, in the 2nd year of use – 260 kg/ha. Alfalfa of the Guzel variety formed a significantly high seed yield of 251 kg/ha. The recommended duration of the use of the birds-foot trefoil grass-stand is two to three years. In the 1st and 2nd years of use of the grass stand, the yield of the seeds was relatively high, 215–378 and 213–349 kg/ha, respectively. By the 3rd year of use, it decreased to 89–161 kg/ha. The old-age grass stand of the 4th year of use did not form seeds. Sowing the birds-foot trefoil without a cover or under cover of spring wheat by the usual row method with a seeding rate of 8–9 million units/ha showed the highest seed yield of 255–270 kg/ha. The duration of the use of the eastern Galega grass-stand is up to 10 years or more. The highest yield of Galega seeds of 510 kg/ha was obtained during the harvesting of grass in the first year of use for feed, in the second – fifth year of use – for seeds, from the 6th year of use – for feed.

scholarly journals Assessmentof seed productivity of complex hybrid populations of red clover

2021 ◽  
Vol 22 (1) ◽  
pp. 47-46
Author(s):  
I. V. Shikhova ◽  
E. V. Popova ◽  
E. G. Arzamasova
Keyword(s):  
Seed Yield ◽  
Red Clover ◽  
Seed Productivity ◽  
Seed Material ◽  
Yield And Quality ◽  
Sum Of Effective Temperatures ◽  
Phases Of Development ◽  
Beginning Of Flowering ◽  
Complex Hybrid ◽  
Number Of Seeds

In the conditions of the Kirov region, the productivity of seeds of four complex hybrid populations (SGP) of red clover was studied, including those formed against an infectious fusarium background (SGPF). The research was carried out in the nursery for evaluating the seed productivity of 2017 sowing in comparison with the standard (st.) Dymkovsky for 2 years of use (y.u.). The characteristics of the SGP and SGPF according to winter hardiness, the start of vegetation phases of development, plant height, structure of seedgrass stand, yield and quality of seed material are given. All studied varieties were more productive than the standard (1.97 c/ha). Reliably high seed yield on average for 2 years was shown by SGPF-158-3 – 2.48 c/ha, SGP-188 – 2.32 c/ha, SGPF-157-3 – 2.16 c/ha. According to fruiting indicators, in 2019SGPF-158-3 with small heads, but with the largest number of flowers and seeds (132.2 and 77.4 pcs., respectively), good seediness (58.8 %) and high seed weight per head (0.153 g) was selected. Also, high rates were noted in the populations of SGPF-157-3 and SGPF-160-3. A strong correlation between seed yield and fruiting rates was revealed: the number of flowers in the head (r = 0.92), the total number of seeds in the head (r = 0.92), the number of filled seeds in the head (r = 0.94), the seediness of the head (r = 0.90), the total weight of seeds in the head (r = 0.85), the mass of filledseeds in the head (r = 0.87). A close positive correlation was noted between the hydrothermal coefficient (HTC) value and length (r = 0.86), width (r = 0.86) of the red clover head during the intergrowth period “regrowth - the beginning of flowering”. It has been established that the average daily air temperature and the sum of effective temperatures during the “beginning of flowering - ripening” period have a positive effect on the fruiting performance: “seediness of the heads” (r = 0.97 and r = 0.87) and “the number of seeds in the head” (r = 0.95 and r = 0.89, respectively). In the same interphase period, a close negative dependence of the indicated fruiting indices on the HTC values was revealed (r = -0.95 and r = -0.94). The sowing qualities of the seeds of the 2019 harvest were determined; it was found that all seed material corresponds to the category of “original and elite seeds”. As the result of the research, the populations of red clover SGPF-158-3, SGP-188 and SGPF-157-3, superior to st. Dymkovsky on seed productivity (by 0.51; 0.35 and 0.9 c/ha, respectively, LSD05 = 0.12 c/ha) and fruiting indicators, were selected.

Seed productivity of alfalfa sowing depending on precipitation and air temperature for the vegetation period

2020 ◽  
Author(s):  
Vladimir Kramarenko
Keyword(s):  
Air Temperature ◽  
Seed Yield ◽  
Vegetation Period ◽  
Meteorological Conditions ◽  
Industrial Technology ◽  
South Urals ◽  
Seed Productivity ◽  
Seed Collection ◽  
Wide Range ◽  
Alfalfa Varieties

The results of ecological testing of alfalfa varieties zoned for the South Urals for seeds cultivated according to industrial technology are presented. Meteorological conditions had a significant impact on seed yield. The size of the crop varied over a wide range from 0 to 350 kg/ha. On average, over the years of study, seed collection was about 78 kg/ha.

STUDY OF EFFECT OF EMS, MMS AND GR ON YIELD CONTRIBUTING TRAITS IN URDBEAN, VIGNA MUNGO

2017 ◽  
Vol 23 (1) ◽  
Author(s):  
A. B. SAGADE
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Seed Weight ◽  
Inhibitory Effect ◽  
Individual Plant ◽  
Mean Values ◽  
Methane Sulphonate ◽  
Pod Length ◽  
100 Seed Weight ◽  
Number Of Seeds

The study of the effect of three well known mutagens, ethyl methane sulphonate (EMS), methyl methane sulphonate (MMS) and gamma rays (GR) on the yield contributing traits of the urdbean variety TPU-4 were carried out in the M3 generation. Effect of selected mutagenic treatments/doses of EMS (0.02, 0.03 and 0.04 M), MMS (0.0025, 0.05 and 0.01 M) and (GR) (30, 40 and 50 KR) on different yield contributing traits like plant height, plant spread, number of pods per plant, pod length, number of seeds per pod, seed yield per plant and 100 seed weight were analyzed in the M3 populations of the variety TPU-4. Seeds of M2 plants and control were harvested separately and sown to raise M3 population.. Genetic variabilty in the mutagen administered M3 progeny of the urdbean variety TPU-4 was analyzed by employing statistical methods. Data on mean values and shift in the mean of seven quantitative traits was evaluated on individual plant basis. The experimental findings revealed that concentrations / dose of the all these mutagens showed inhibitory effect on plant height, number of pods per plant, pod length and number of seeds per pod. Lower concentrations of mutagens exerted a promotory effect on plant spread, 100 seed weight and seed yield per plant while higher concentrations of these mutagens inhibited them to different extent.

scholarly journals Effect of sulphur on the seed yield and oil content of sesame (Sesamum indicum L.)

2019 ◽  
Vol 17 (1) ◽  
pp. 33-38
Author(s):  
Swapan Kumar Paul ◽  
Mosa Morsheda Khatun ◽  
Md Abdur Rahman Sarkar
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Dry Matter ◽  
Oil Content ◽  
Dry Matter Production ◽  
Production Plant ◽  
Matter Production ◽  
Stover Yield ◽  
Number Of Seeds ◽  
Number Of Branches

Sulphur is a component of plant amino acids, proteins, vitamins, and enzyme structures which influence the productivity of oil seed and total oil content. The experiment was conducted to find out the effect of sulphur on the seed yield and oil content of sesame in Bangladesh. The experiment comprised three varieties of sesame viz. Binatil-2, Binatil-3 and BARI Til-4 and six levels of sulphur (S) viz. 0, 10, 20, 30, 40 and 50 kg S ha–1. The experiment was laid out in a randomized complete block design with three replications. Dry matter production, crop characters, yield components, seed yield and oil content were significantly influenced by variety, level of sulphur and their interaction. The highest dry matter production plant–1 at 50 DAS (17.56 g), plant height (101.3 cm), number of branches plant–1 (3.66),  number of pods plant-1 (41.56), number of seeds pod-1 (58.83),  seed yield    (747.2 kg ha-1), stover yield (2243.0 kg ha–1) and oil content (40.03%) were obtained in BARI Til-4 while the corresponding lowest values of all parameters were recorded in Binatil-2. In case of sulphur application, the highest dry matter production plant–1 at 50 DAS (20.81 g), plant height (109.7 cm), number of branches plant–1 (3.87),  number of pods plant–1 (46.13),  number of seeds pod-1 (56.67),  seed yield (800.0 kg ha–1), stover yield (2787 kg ha–1 ) and oil content (43.97%) were obtained when crop was fertilized with 30 kg S ha–1 while the lowest seed yield (502.2 kg ha–1), stover yield (1550.0 kg ha–1) and oil content (32.80%) were obtained in control (0 kg S ha–1). BARI Til-4 fertilized with 30 kg S ha–1 produced the highest dry matter plant–1 at 50 DAS (24.80 g), number of pods plant–1 (51.13), seeds pod–1 (62.0) and seed yield (1011.0 kg ha–1). The highest oil content (43.97%) was also recorded in BARI Til-4 fertilized with 30 kg S ha–1, which was as good as that of BARI Til-4 fertilized with 40 kg S ha–1. Therefore, BARI Til-4 fertilized with 30 kg S ha–1 can be considered as a promising practice in respect of seed yield and oil content of sesame in Bangladesh. J. Bangladesh Agril. Univ. 17(1): 33–38, March 2019

Morphological and physiological traits associated with seed yield in different chickpea (Cicer arietinum L.) genotypes under irrigated andwater‐deficit environments

2011 ◽  
Vol 1 (6) ◽  
pp. 260-267
Author(s):  
Reza Talebi ◽  
Ezzat Karami
Keyword(s):  
Chlorophyll Content ◽  
Water Deficit ◽  
Seed Yield ◽  
Seed Weight ◽  
Significant Negative Correlation ◽  
Physiological Traits ◽  
Positive Correlation ◽  
Chickpea Cultivar ◽  
High Level ◽  
Number Of Seeds

The morpho â€physiological traits associated with seed yield in chickpea (Cicerarietinum L.) were evaluated on thirty five chickpea genotypes under twodifferent water regimes. In optimum condition, the highest correlation wasbelonged to number of seeds/plant and number of pods/plant (0.944**) andin water deficit condition, the strongest correlation of seed yield was observedwith number of seeds/plant (0.875**), number of pods/plant(0.789**) and 100  â€seed weight (0.438**). Physiological traits (RWC, Chlorophylland Carotenoid) indicated low and positive correlation with yield, buthigh positive correlation with other seeds yields related traits in optimumcondition while, under water deficit condition, chlorophyll content and RWChad low and non â€significant negative correlation with seeds yield. Carotenoid,number of seeds/plant and 100 â€seed weight showed more direct positiveeffect on yield in optimum environment and in stress condition, numberof seeds/ plant and 100 â€seed weight showed highest direct effect on seedyield. Results of factor analysis showed that four factors explained 88.54%and 34.5% of the total variance caused in the characters in optimum andwater deficit environment, respectively. In general, the results suggestedthat a chickpea cultivar, for increased yield under non â€stress conditions,should have maximum number of seeds and pods per plant and under stressconditions should have maximum number of seeds and pods per plant andalso keep the high level of RWC and chlorophyll content in their leaves. Thus,identifying these traits as selection criteria in chickpea breeding programmay be useful for breeders to introduce suitable drought resistant chickpeacultivars for arid regions.

scholarly journals Успадкування господарсько цінних ознак у гібридів F1 квасолі звичайної в умовах Лівобережної частини Лісостепу України

2013 ◽  
pp. 33-36
Author(s):  
С. І. Силенко ◽  
О. С. Силенко
Keyword(s):  
Seed Yield ◽  
First Generation ◽  
Seed Mass ◽  
Growing Season ◽  
F1 Hybrids ◽  
Lower Tier ◽  
Number Of Seeds

Доведено, що ступінь фенотипового домінування у гібридів F1 може варіювати від hp > +1 до hp < -1 залежно від компонентів схрещування. Встановлено, що переважна більшість гібридів F1 тривалість веґетаційного періоду та його міжфазних періодів успадковують за типами позитивного наддомінування та позитивним домінуванням. Успадкування висоти рослин відбувається за типами позитивного домінування, проміжного успадкування та за типом негативного домінування. Характер успадкування висоти прикріплення нижнього ярусу бобів у значній мірі визначається поєднанням батьківських компонентів. Так, у першому поколінні у гібридних комбінаціях спостерігається явище наддомінування. За ознаками урожайності та її елементів (урожайність насіння, маса насіння з рослини, маса 1000 насінин, кількість бобів на рослині, кількість насінин із рослини, кількість насінин у бобі) у всіх без виключення гібридів першого покоління спостерігався гетерозис. It was demonstrated that the degree of phenotypic predominance in F1 hybrids can vary from hp to hp < +1 > -1 depending on mating components. The vast majority of the F1 hybrids inherit the length of the growing season and its interphase by type of over& positive dominance. F1 hybrids inherit the height of plants by types of positive dominance, intermediate inheritance and negative domination. The height of the attachment of the lower tier of the beans is largely determined by a combination of parent components. Thus, in the first generation in hybrid combinations there is the phenomenon of over dominance. Due to the yield and its components (seed yield, seed mass per plant, 1000 seeds, number of beans per plant, number of seeds per plant, number of seeds per seedpod) in all first generation hybrids heterosis is observed.

scholarly journals Effect of Iron on Yield of Corn (Zea mays L.) in Drought Stress

2019 ◽  
Vol 52 (1) ◽  
pp. 34-43
Author(s):  
K. Rafsanjani ◽  
A. Madani ◽  
F. Vazin
Keyword(s):  
Drought Stress ◽  
Seed Yield ◽  
Arid Regions ◽  
Block Design ◽  
Control Treatment ◽  
Yield Reduction ◽  
Pan Evaporation ◽  
Randomized Complete Block Design ◽  
Four Levels ◽  
Number Of Seeds

Abstract In hot and arid regions, drought stress is considered as one of the main reasons for yield reduction. To study the effect of drought stress, iron spray on the yield and yield components of corn, an experiment was carried out during the crop seasons of 2013 on research Farm in Faizabad of Iran, as a split plot within randomized complete block design with three replications. The main plots with irrigation factor and four levels were considered: level A) 50 ml evaporation from pan evaporation; level B) 100 ml evaporation from pan evaporation; level C) 150 ml evaporation from pan evaporation and level D) 200 ml evaporation from pan evaporation. Sub plots were considered with iron spray in three levels, included level A) 80 g/ha, level B) 130 g/ha and level C) 180 g/ha. The drought stress reduced seed yield, the 1000-kernels weight (TKW), the number of seeds per ear, the number of seeds per row in ear, the number of rows per ear about 39%, 6%, 31%, 14% and 27% less than control treatment, respectively. Using iron, as compared with control treatment, causes the increase of 1000-kernels weight from 295 to 311 g and the increase of seed yield from 5188 to 7078. The results obtained from the present research showed that iron spray has fairly improved the effects caused by drought stress.

scholarly journals SEED PRODUCTIVITY AND DEVELOPMENT OF PLANTLETS POPULUS × JRTYSCHENSIS CH. Y. YANG

2019 ◽  
pp. 51-57
Author(s):  
B. V. Proshkin ◽  
A. V. Klimov
Keyword(s):  
Filter Paper ◽  
Fruit Set ◽  
Control Group ◽  
Natural Hybrid ◽  
Seed Productivity ◽  
Model Trees ◽  
Fruit Number ◽  
Black Poplar ◽  
Petri Dishes ◽  
Number Of Seeds

The research explores the seed productivity and plantlets growth in the free pollination of the natural hybrid taxon P. × jrtyschensis. Fruits of P. × jrtyschensis were selected from four plants that grow in the collection ofResearchCenter“EducationalBotanical Garden” ofKemerovoStateUniversity. Four P. nigra model trees, randomly selected from theTomRiverfloodplain population, were applied as a control group. The authors used 30 fruit-bearing amentumsfrom each model. The researchers measured set of fruit (capsule); number of ovules per fruit; number of seeds per fruit; set of seeds.. Laboratory germination was determined by sowing Petri dishes on wet filter paper. The authors found out sowing germination by sowing 100 seeds in a box with soil and drainage. The energy of germination was determined on the second day while germination - on the fifth day. P. × jrtyschensis is characterized by a lower level of seed productivity (15-30%) compared to P. nigra. In terms of laboratory germination of seeds, the descendants of hybrids surpassed many P. nigra models, but their soil germination was 20-30% lower than that of black poplar. The observed variability in reproductive indices of both P. × jrtyschensis and P. nigra is mainly caused by specific features of their genotypes. Plantlets being developed, the authors observed no significant differences among the descendants of P. nigra and hybrids. The researchers highlighted plantlets that can stop growing and even more abnormal plants with one, three or four seeds in P. × jrtyschensis. This may be caused by underdevelopment of hypocotyl or germ root. The authors observed breaches in development of P. nigra just once. They outline high plantlets destruction when sowing hybrids on the first day after germination The share of destructed plants within a month (from the beginning of the experiment) reaches 66,0 %, and in P. nigra it does not exceed 40,0 %.

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