Connection of phenotypic form Siberian cedar cones with the index of seed productivity

10.12737/2225 ◽  
2014 ◽  
Vol 8 (4) ◽  
pp. 153-156
Author(s):  
Хамитов ◽  
Renat Khamitov ◽  
Хамитова ◽  
Svetlana Khamitova
Keyword(s):  
Seed Productivity ◽  
Seed Scale

The article cites the results of studies to identify the influence of form identity of Siberian cedar (according to the form of cones and seed scale apophysis type) on the index of seed productivity. It was noted the link presence between forms. The authors proposed to use the differences by type of apophysis for breeding purposes.

SEED PRODUCTIVITY OF ALFALFA IN THE SECOND CUT IN THE PRE-URAL STEPPE ZONE OF BASHKORTOSTAN

2018 ◽  
Vol 6 (3) ◽  
pp. 60-63
Author(s):  
A.A. Nisaea ◽  
◽  
R.L. Akchurin ◽  
R.A. Biktimirov ◽  
R.K. Nafikov ◽  
...  
Keyword(s):  
Steppe Zone ◽  
Seed Productivity

Yield and seed productivity of pear rootstock forms in the conditions of the steppe zone of the Southern Urals

2020 ◽  
Vol 62 ◽  
pp. 39-47
Author(s):  
A. I. Lokhova ◽  
E. Z. Savin ◽  
A. M. Rusanov ◽  
A. A. Mushinskiy
Keyword(s):  
Steppe Zone ◽  
Southern Urals ◽  
Botanical Garden ◽  
Climatic Conditions ◽  
High Yield ◽  
State University ◽  
Maximum Weight ◽  
Seed Productivity ◽  
The Southern Urals ◽  
Typical Soil

The article presents the results of studying the diversity of pear rootstock forms in terms of yield and seed productivity. The research was carried out at the experimental sites of the Orenburg Experimental Station of Horticulture and Viticulture of AllRussian Horticultural Institute for Breeding, Agrotechnology and Nursery and the Botanical Garden of the Orenburg State University in 2017-2019, in typical soil and climatic conditions of the Orenburg city. The purpose of the study is to identify pear rootstock forms characterized by high yield and stable seed productivity for use in the future as a seed rootstock. During the research, 15 pear accessions were studied; the planting scheme was 6x4 m. As a result of research, it was found that the rootstock form Temno-zelenaya is characterized by a high yield (40 kg/tree). High seed productivity of more than 6 seeds in one fruit was observed in samples: Vernaya (6.0-6.5 pcs.), SK-1, SK-3 (6.1-7.8 pcs.), SK-2 (7.0-7.5 pcs.), Chang Bai Li (7.4-7.7 pcs.), Semennaya 214 (7.5-7.8 pcs.). It was revealed that the Xiao he Bai Li variety is characterized by the maximum weight of 1000 seeds (65.2 g). Analysis of accessions by seed yield established that a consistently high yield is observed in the varieties Chang Bai Li (2.5-4.2 %), Vernaya (3.96-4.18 %) and forms SK-1 (2.0-3.25%), SK-2 (2.25-2.75 %), SK-3 (1.43-4.0 %). Pear rootstock forms Chang Bai Li, Vernaya, Semennaya 214, SK-1, SK-2, SK-3 were identifi ed, which can be recommended for production testing as seed pear rootstocks for the conditions of the steppe zone of the Southern Urals.

scholarly journals Seed productivity of different Festulolium varieties

2020 ◽  
Vol 422 ◽  
pp. 012026
Author(s):  
V N Obraztsov ◽  
D I Shchedrina ◽  
S V Kadyrov
Keyword(s):  
Seed Productivity

INFLUENCE OF HERACLEUM SOSNOWSKYI MANDEN. ON BIODIVERSITY OF VASCULAR PLANTS OF THE PROTECTED AREA «LIPOVAYA GORA» (PERM)

2020 ◽  
pp. 272-279
Author(s):  
D. N. Tiunov ◽  
◽  
E. G. Efimik ◽  
Keyword(s):  
Plant Species ◽  
Plant Communities ◽  
Protected Area ◽  
Vascular Plants ◽  
Rapid Development ◽  
Projective Cover ◽  
Seed Productivity ◽  
Heracleum Sosnowskyi ◽  
Rapid Spread

The problem of invasion of Sosnowsky hogweed (Heracleum sosnowskyi Manden.) In the Lipovaya Gora SPNA in Perm is considered. A map of distribution of hogweed cenopopulations in the protected area is presented. The results of the influence of the invasion of Sosnovsky hogweed on the biodiversity of vascu-lar plants of some plant communities are presented. It was revealed that the invasion of hogweed into phytocenoses of the Lipovaya Gora protected area leads to a decrease in the biodiversity of vascular plants by about 26.4% (up to 12 plant species). The ways of introduction of cow parsnip into the communities of the protected area are considered. High seed productivity, high projective cover, reaching in some cases 100%, high phytomass, the presence of dormant seeds, rapid development in spring, and high anthropo-genic load on the territory determine the rapid spread of H. sosnowskyi.

Seed Productivity of Spring Sown Italian Ryegrass(

2021 ◽  
Vol 41 (1) ◽  
pp. 23-28
Author(s):  
Eun Chan Jeong ◽  
◽  
Hak Jin Kim ◽  
Yan Fen Li ◽  
Meing Joong Kim ◽  
...  
Keyword(s):  
Lolium Multiflorum ◽  
Italian Ryegrass ◽  
Seeding Rate ◽  
Seed Productivity

scholarly journals Floral morphology affects seed productivity through pollination efficiency in radish (Raphanus sativus L.)

Euphytica ◽  
2009 ◽  
Vol 168 (2) ◽  
pp. 263-274 ◽  
Author(s):  
Kiwa Kobayashi ◽  
Atsushi Horisaki ◽  
Satoshi Niikura ◽  
Ryo Ohsawa
Keyword(s):  
Raphanus Sativus ◽  
Floral Morphology ◽  
Pollination Efficiency ◽  
Seed Productivity ◽  
Raphanus Sativus L

scholarly journals Seed production of lemon balm and the quality of its seeds in the middle of the Volga region

2019 ◽  
pp. 34-36
Author(s):  
Ilya Alexandrovich Khapugin
Keyword(s):  
Seed Production ◽  
Weather Conditions ◽  
Mineral Fertilizers ◽  
Small Scale ◽  
Melissa Officinalis ◽  
Seed Productivity ◽  
Lemon Balm ◽  
Maximum Productivity ◽  
Scale Experiment

The influence of mineral fertilizers on seed productivity and quality of obtained seeds of lemon balm (Melissa officinalis L.) was studied in the field small-scale experiment under conditions of unstable moistening of the Mordovia Republic. As a result, it was found that seed productivity varied depending on weather conditions and the types of fertilizers introduced. It was shown that the maximum productivity of Melissa officinalis plants was on the variant with the use of phosphorus-potassium fertilizers at a dose of P60K90 (71.2±78.5 g/m2 in 2017 and 48.8±4.3 g/m2 in 2018), while it exceeded the control variant by 74-91 %. The total germination of seeds of Melissa officinalis practically did not change over the years, and was in the range of 37-39 %. Separation of seeds according to the degree of aging allowed to increase germination 11.4-13.3 %.  

scholarly journals Reproductive features of Festuca rubra L. in different environmental conditions

2018 ◽  
Vol 7 (4) ◽  
pp. 31-35
Author(s):  
Galina Aleksandrovna Zueva ◽  
Irina Viktorovna Khusainova
Keyword(s):  
Maximum Yield ◽  
Sharp Decrease ◽  
Sowing Date ◽  
Educational Process ◽  
Reproductive Capacity ◽  
Festuca Rubra ◽  
Seed Productivity ◽  
Planting Dates ◽  
Optimal Method ◽  
Ecological Conditions

The paper presents comparative results of Festuca rubra L. seed productivity study in Siberia and Kazakhstan. The authors consider the influence of ecological conditions on the organo-educational process of the species. The authors reveal specific features of plants growth and development at different terms of seeding in different ecological conditions. In the first year of vegetation, plants in all variants undergo two phenological phases - shoots and tillering. Different planting dates make significant changes in the reproductive capacity of plants. In spring plants sowing apical meristem at the end of the growing season corresponds to the IV stage of organogenesis. The following year in spring, shoots of the 2nd, 3rd and 4th orders also become generative. An optimal method of Festuca rubra growing with maximum parameters of seed productivity was determined. It was found out that during spring sowing the maximum yield of seeds (up to 48 g/m) can be obtained for the 3rd year of life of the cereal. For the 4th year there is a slight decrease (45,4 g/m). With the early sowing date - the maximum yield (up to 51 g/m) was obtained only for the 4th year of plant life and a further decrease is observed. During autumn sowing, the first fructification of cereals occurs only in the 3rd year of life and is expressed in the maximum number of shoots and the yield of seeds (68 g/m). Further sharp decrease in such indicators as generative shoots and yields indicates the inexpediency of further preservation of the testes.

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