Семенная продуктивность материнской линии партенокарпического огурца F1 Троя в зависимости от площади питания

Author(s):  
A.A. Ushanov ◽  
A.A. Mironov

В работе исследованы влияние различных схем размещения семеноводческого посева на рост и развитие семенных растений и семенную продуктивность партенокарпического короткоплодного гибрида огурца F1 Троя в условиях открытого грунта Московского региона. Наибольшая урожайность и выход семян из семенника были получены при контрольной схеме посадки (140+70) × 20 см и составили 1,49 ц/га и 0,32% соответственно, а масса 1000 семян – 24,2 г.In this paper, we investigated the effect of different schemes of placement of seed sowing on the growth and development of seed plants and seed production of female line of parthenocarpic F1 hybrid cucumber Troy in the open ground in the Moscow region. The highest yield of seed and the yield of seed from testis were obtained with the scheme of planting (140+70) × 20 cm and amounted to 149 kg/ha and 0.32%, respectively, while 1000 seed weight was 24.2 g.

2018 ◽  
Author(s):  
A  Khovrin ◽  
M  Ibragimbekov ◽  
R  Bagrov

Даны результаты оригинального первичного семеноводства корнеплодных культур в изоляторах в селекционно-семеноводческом центре агрохолдинга «Поиск» (Раменский район Московской области). Описаны технологические особенности процесса семеноводства, представлен видовой состав болезней и вредителей семенных растений в условиях исследований.The results of the original primary seed growing of root crops in cells at breeding and seed production centre of Poisk Agro Holding (Ramensky district, Moscow region) are given. Technological peculiarities of the process of seed production, species composition of pests and diseases of seed plants in terms of research are presented.


2021 ◽  
pp. 37-39
Author(s):  
В.И. Старцев ◽  
Л.В. Старцева ◽  
А.П. Глинушкин

В течение 2019–2021 годов на опытно-производственной базе ФГБНУ ВНИИФ в Московской области (Одинцовский городской округ) выращивали растения капусты брюссельской сорта Геркулес 1342 для получения семян в беспересадочной культуре без применения химически синтезированных препаратов защиты растений и агрохимикатов. Беспересадочный способ позволил вырастить семена капусты брюссельской исключив основные, наиболее затратные и трудоемкие агротехнические мероприятия: отбор и уборка с поля маточных растений с корневой системой, перевозка в хранилище и хранение маточников при соблюдении режима хранения, зачистка маточников и весенняя подготовка к высадке, высадка маточников в открытый грунт. После высадки в поле и приживания маточных растений потери могут достигать 50%. В беспересадочной культуре сохранность семенных растений после перезимовки составляла 80%, а семенная продуктивность достигала 23 г с одного растения, при лабораторной всхожести – 98%, что значительно превосходит контрольный вариант – выращивание семян в пересадочной культуре. Растения, выращенные из семян, полученных в беспересадочной культуре, склонности к преждевременному цветению не проявляли и формировали нормальные, по морфологическим признакам, продуктивные растения. Семенные растения капусты брюссельской сорта Геркулес 1342 успешно переживали в открытом грунте без укрытия как малоснежную зиму 2020 года, так и зиму 2021 года с достаточно высоким снежным покровом – до 55 см. При этом растения имели незначительные повреждения не от мороза, а от мышей. В отличие от маточных растений, высаживаемых в открытый грунт, после зимнего хранения, маточные растения, выращенные в беспересадочной культуре, не имели повреждения точек роста вследствие солнечных ожогов. Таким образом сохранялось наиболее продуктивное первое цветение. During 2019–2021, Brussels sprouts of the Hercules 1342 cultivar were grown at the experimental production base of the FSBSI VNIIF in the Moscow region, Odintsovo District in order to obtain seeds in a non-planting culture without the use of chemically synthesized plant protection preparations and agrochemicals. The non-planting method made it possible to grow Brussels sprouts seeds by eliminating the main, most expensive and time-consuming agrotechnical measures: selection and cleaning of mother plants with a root system from the field, transportation to the storage and storage of mother plants while observing the storage regime, cleaning of mother plants and spring preparation for planting, planting in the open ground. After planting in the field and taking root of the mother plants, losses can reach 50%. In a seedless culture, the safety of seed plants after overwintering was 80%, and the seed productivity reached 23 grams per plant, with laboratory germination – 98%, which significantly exceeds the control variant: growing seeds in a transplant culture. Plants grown from seeds obtained in a non-planting culture did not show a tendency to premature flowering and formed normal ones. According to morphological characteristics, productive plants. Seed plants of Brussels sprouts of the Hercules 1342 cultivar successfully survived both the low – snow winter of 2020 and the winter of 2021 with a sufficiently high snow cover-up to 55 cm in the open ground without shelter. At the same time, the plants had minor damage not from frost, but from mice. Unlike the mother plants planted in the open ground, after winter storage, the mother plants grown in a non-planting culture did not have damage to the growth points due to sunburn. Thus, the most productive first flowering was preserved.


1990 ◽  
Vol 4 (2) ◽  
pp. 415-419 ◽  
Author(s):  
Charlotte V. Eberlein ◽  
Edith L. Lurvey ◽  
Timothy L. Miller ◽  
Janis L. Michael

Growth and development of three wild-proso millet biotypes (Cambridge, LeSueur, and Morris) and one cultivated proso millet (‘Crown’) were compared under noncompetitive conditions in field studies. LeSueur and Cambridge were taller than Crown and Morris at maturity. All wild types had greater leaf area and dry weight at maturity than Crown. Crown headed earlier than the wild types, and among the wild types, Cambridge was slowest to mature. Seed production was 1.4 to 2 times greater for wild than cultivated proso millet, and averaged 48 000, 69 000, 83 000, and 94 000 seeds/plant for Crown, Cambridge, LeSueur, and Morris, respectively. Mean seed weight was 4.0 and 3.8 mg/seed for LeSueur and Morris, respectively, and 5.8 and 5.9 mg/seed for Crown and Cambridge, respectively. LeSueur and Morris seed shattered readily, but Cambridge seed shattered relatively little. Seed dormancy was greater in LeSueur and Morris than in Cambridge. Based on reproductive potential, shattering, and dormancy characteristics, LeSueur and Morris appeared to have more weedy characteristics than Cambridge.


Author(s):  
A.N. Khovrin ◽  
D.A. Yanaeva

В статье описаны симптомы поражения семенных растений редиса A. candida, дана оценка ряда сортов с разной устойчивостью к A. candida. Описаны способы борьбы с этим заболеванием при элитном семеноводстве редиса. В результате двулетней оценки образцов питомника размножения выявлено, что есть сортовая специфика устойчивости к Albugo candida. Более склонен к поражению в генеративную фазу развития сорт Кармен, наиболее устойчив к патогену сорт Меркадо.The symptoms of A. candida on seed plants radish are described a number of varieties with different resistance to A. candida are evaluated. The methods of combating of this disease in elite seed production of radish are described. As a result of twoyear evaluation of breeding nursery samples it was revealed that there is varietal specificity of resistance to A. candida. The Carmen cultivar is more prone to disease in the generative phase, the most resistant to the pathogen is Mercado cultivar.


Author(s):  
L.A. Chistyakova ◽  
O.V. Baklanova ◽  
E.L. Makarova ◽  
Yu.V. Bortsova

Приведены результаты испытания нового перспективного партенокарпического гибрида огурца корнишонного типа F1 Энеж 21, созданного селекционерами агрохолдинга «Поиск», в условиях открытого грунта в Северо-Западном, Центральном и Волго-Вятском регионах Российской Федерации: Костромская, Ярославская, Московская, Рязанская, Тульская область и Чувашская Республика. Высокие потенциальные возможности и адаптационные свойства гибрида F1 Энеж 21 наиболее значимо проявляются в Московской области (63,8 т/га), Чувашской Республике (39,4 т/га) и Рязанской области (31,2 т/га).The article presents the results of testing a new promising parthenocarpic pickling cucumber hybrid F1 Enezh 21, selected by the breedrs of the Agricultural holding «Poisk» in conditions of open ground in the North-West, Central and Volga-Vyatka regions of the Russian Federation: Kostroma, Yaroslavl, Moscow, Ryazan, Tula regions and the Chuvash Republic. The high potential and adaptation characteristic of the F1 Enezh 21 hybrid are most significantly presented in condition of the Moscow region (63.8 t / ha), the Chuvash Republic (39.4 t / ha) and the Ryazan region (31.2 t / ha).


Author(s):  
Jin Yue Liu ◽  
Ze Wen Sheng ◽  
Yu Qi Hu ◽  
Qi Liu ◽  
Sheng Qiang ◽  
...  

AbstractThe releasing of transgenic soybeans (Glycine max (L.) Merr.) into farming systems raises concerns that transgenes might escape from the soybeans via pollen into their endemic wild relatives, the wild soybean (Glycine soja Sieb. et Zucc.). The fitness of F1 hybrids obtained from 10 wild soybean populations collected from China and transgenic glyphosate-resistant soybean was measured without weed competition, as well as one JLBC-1 F1 hybrid under weed competition. All crossed seeds emerged at a lower rate from 13.33–63.33%. Compared with those of their wild progenitors, most F1 hybrids were shorter, smaller, and with decreased aboveground dry biomass, pod number, and 100-seed weight. All F1 hybrids had lower pollen viability and filled seeds per plant. Finally, the composite fitness of nine F1 hybrids was significantly lower. One exceptional F1 hybrid was IMBT F1, in which the composite fitness was 1.28, which was similar to that of its wild progenitor due to the similarities in pod number, increased aboveground dry biomass, and 100-seed weight. Under weed competition, plant height, aboveground dry biomass, pod number per plant, filled seed number per plant, and 100-seed weight of JLBC-1 F1 were lower than those of the wild progenitor JLBC-1. JLBC-1 F1 hybrids produced 60 filled seeds per plant. Therefore, F1 hybrids could emerge and produce offspring. Thus, effective measures should be taken to prevent gene flow from transgenic soybean to wild soybean to avoid the production F1 hybrids when releasing transgenic soybean in fields in the future.


1986 ◽  
Vol 26 (1) ◽  
pp. 59 ◽  
Author(s):  
MDA Bolland ◽  
WJ Collins

On sandy soil near Esperance, W.A., prevention of burr burial compared with covering developing burrs with sand drastically reduced the seed production of three subspp. of Trifolium subterraneum (brachycalycinum, subterraneum and yanninicum) and of T. israeliticum by reducing burr production and seed weight. However, T. globosum produced similar amounts of seed from unburied and buried burrs. On sandy soil at Shenton Park, Perth, W.A., prevention of burr burial also reduced seed production of T. subterraneum subspp. brachycalycinum and subterraneum, this being due to fewer burrs, fewer seeds per burr and lighter seed. For subsp. brachycalycinum, seed yields were two to five times greater from burrs which developed within loose gravel than from those developed over sand (in which fewer burrs were able to bury) as a result of increased production of burrs, more seeds per burr and heavier seed. However, for subsp. subterraneum seed yields were similar from burrs whether developed over gravel or sand.


2006 ◽  
Vol 28 (2) ◽  
pp. 45-52 ◽  
Author(s):  
Armando Martins dos Santos ◽  
Luis Mauro Gonçalves Rosa ◽  
Lucia Brandão Franke ◽  
Carlos Nabinger

The experiment was carried out in pots in a glasshouse, with one plant per pot and nine repetitions per treatment. The treatments consisted of free or restricted leaves, submited to 90-100% or 60-70% soil field capacity (FC). Only independent effects of water availability or leaf movement were observed on yield components. Plants under well-watered conditions and with freely orienting leaves were taller, and had a larger number of ramifications. The greater development favored the setting of a higher number of inflorescences per plant in these treatments. This behavior resulted in a high number of flowers, green and mature legumes per plant, thus resulting in high seed production which was the most evident response to water availability. Although individual seed weight was higher in the water stress treatment, total seed production was higher for well-watered plants, with no statistically significant effect of leaf movements.


2017 ◽  
Vol 5 (3) ◽  
pp. 382-385
Author(s):  
Chandan Bhattarai ◽  
Dinesh Marasini ◽  
Prabin Dawadi ◽  
Sadkishya Aryal

Seed to seed production experiments for cowpea (Vigna ungiculata) was conducted at Agronomy farm at IAAS Lamjung, and to compare production potentialities of given cowpea genotypes under the given sets of conditions. The treatment consists of two cowpea varieties viz. Prakash (Standard Check) and Malepatan (Local check) and four genotypes; IT 99K-573-2-1, IT 86F-2062-5, IT 93K-452-1, IT 98K-205-8. The experiment was conducted on RCBD design. .All other activities were carried out according to prepared working calendar almost from August 2016 to December 2016.  Data collection were done for pre-determined growth and other yield parameters and was analyzed using MSTAT. Major parameters were Grain yield, Seeds/plant, Pods/plant, plant height, pod length, harvest index and test weight. Result shows maximum grain yield and harvest index was found for Prakash (Standard Check).Plant height and Pods /Plant was found highest for IT 99K-573-2-1. Similarly highest seed weight was found for Prakash (Standard Check) and Seeds/Plant and Pod length was maximum for IT 86F-2062-5.Int. J. Appl. Sci. Biotechnol. Vol 5(3): 382-385


Sign in / Sign up

Export Citation Format

Share Document