The effect of rapeseed stand density on the formation of generative organs

Kuchtová, Perla; Vasak, J.

doi:10.17221/3685-pse

Cited by 5 publications

(3 citation statements)

References 5 publications

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“…Data values estimated the calculated seed yield to about 800 grams per square meter. Such value corresponds to the calculated seed yield in the study by Kuchtová and Vašák (2004). As only a small sample size was used for this test, the data remain only indicative.…”

Section: Resultsmentioning

confidence: 83%

Influence of crop management on formation of yield components of winter oilseed rape

Krček¹,

Baranyk²,

Brant³

et al. 2019

PLANT SOIL ENVIRON

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The habitus of oilseed rape and its yield component values can be strongly affected by the structure of its stand. Field experiments took place in Central Bohemia in years 2013–2015 aiming at determining the influence of row-spacing (12.5, 25, 35 and 45 cm) on the yield components. Chosen parameters (the number of plants per unit area, the number of pods per plant, the number of seeds per pod and yield) were evaluated at the monitored stands (30 seeds/m<sup>2</sup> sowing rate, cv. DK Exquisite). The study confirmed the statistical significance of the influence of row-spacing on some winter oilseed rape yield components. Widening of the row-spacing has led to a decrease in the number of pods per plant and the number of plants per unit area and an increase in the number of seeds per pod parameter. 1000 seed weight was not affected. This study did not confirm a positive effect of sowing oilseed rape in rows wider than 12.5 cm. Therefore, such an agronomical decision cannot be recommended as a way to achieve higher seed yield.

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Section: Resultsmentioning

confidence: 83%

Influence of crop management on formation of yield components of winter oilseed rape

Krček¹,

Baranyk²,

Brant³

et al. 2019

PLANT SOIL ENVIRON

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“…Alam, (2004); Vujaković et al, (2014) reported that high plant population (low row spacing) had significant effect on plant height. In contrast, Kuchtova and Vasak, (2004) found that high plant population had no significant effect on plant height. Also Fathi et al, (2002) showed that high plant population had decreased number of silique per plant and weight of thousand seed.…”

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confidence: 85%

Field Performance of Three Rapeseed Genotypes (Brassica napus L.) Under Different Levels of Plant Density in Nineveh Governorate

Al-Doori¹

2021

CBERJ

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Two field experiments were conducted for rapeseed crop (Brassica napus L.) during two winter successive seasons 2018-2019, 2019-2020 at AL-Hamdanea location which is far Mosul city about (30km). Each experiment was conducted according to factorial experiment in randomized completely block design with three replications. Its included three plant population (111.110, 166.666 and 333.332 plants. hectar -1 ) with three genotypes of rapeseed crop (Talayeh, Okapi and Rainbow).The results could be summarized as:The plant population of 111.110 plants. hectar -1 gave the highest mean for characters stem diameter, number of primary branches, number of silique / plant, leaf area, number of seed per silique, weight of thousand seed, and oil, protein percentage in 2018-2019, 2019-2020 seasons, While the plant population of 333.332 plants. hectar -1 gave a high mean for plant height in both growing seasons.The genotypes differed significantly in all the related characteristics, the Okapi genotype come over the other genotypes in plant height, stem diameter, number of branches/plant, leaf area, number of silique/plant, number of seed/silique, 1000 seeds weight (g.) seed yield (ton.ha -1 ), oil, protein percentage of seeds and oil, protein yield (ton.ha -1 ) in both growing seasons. The interaction between plant population and genotypes was significant in plant height in both growing seasons.‫اجمللد‬ ، ‫األساسية‬ ‫لرتبية‬ ‫ا‬ ‫كلية‬ ‫أحباث‬ ‫جملة‬ ( ‫لعدد‬ ‫ا‬ ، ‫لسنة‬ ،)

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“…Buds, flowers and siliques of winter rape fall down more from lateral branches than from terminal, which is more preferred [62]. Similarly fruit size decline from margin to the centre of capitulum as the result of resource competition [86,1].…”

Section: Seed Development and Influence Of The Seed On The Plant Growthmentioning

confidence: 99%

Influence of the Root and Seed Traits on Tolerance to Abiotic Stress

Bláha¹,

Pazderů²

2013

Agricultural Chemistry

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Agricultural Chemistry 90considerable economic costs connected with maintenance of genetic resources. This situation can lead even to loss of genetic resources.Consequent changes during long term storage consist from: increasing concentration of free radicals, which are formed in time of long-term seed storage, damaging membrane lipids, inactivation of enzymes, damaging storage proteins and DNA. This process resulted to lower seed quality (low vigor) or even total loss of germination. Deterioration of the seeds during storage is irreversible phenomenon, natural for living organisms. Aged seeds influence optimal root growth (angle of root growth in the soil, depth penetration, tillering).Roots quality influences water utilization in plants with different level by different cultivars in different environmental conditions and by this way drought tolerance during vegetation period and through the new filial seed generation germination and grow of young plants.The water availability and efficiency of water utilization in time of germination is one of the basic factors influencing field emergence rate. Water uptake is the first step for enzymes activation, and shortly, for successful germination. The large variability in water use efficiency of seeds of different species and cultivars exist. Seed and root phylogeny -general overviewThe seeds, roots and their properties are the result of the phylogenic development under stress pressure, especially the influence of dry conditions in time of plant colonization of the Earth. The seed phylogeny reflects very interesting historical transition for photosynthetic organisms. The seed history consists of four main steps: the development of seed morphological structures, anatomy of seeds; the development of dormancy and the evolution of seed size (mass) [65,66] Seeds were developed over a period of approximately 300 million years of phylogeny for three main reasons [11,14,16,63]

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The effect of rapeseed stand density on the formation of generative organs

Cited by 5 publications

References 5 publications

Influence of crop management on formation of yield components of winter oilseed rape

Influence of crop management on formation of yield components of winter oilseed rape

Field Performance of Three Rapeseed Genotypes (Brassica napus L.) Under Different Levels of Plant Density in Nineveh Governorate

Influence of the Root and Seed Traits on Tolerance to Abiotic Stress

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