The effect of plant population densities on growth, yield and yield components of two spring rapeseed cultivars

Özer, Hakan

doi:10.17221/4151-pse

Cited by 40 publications

(44 citation statements)

References 13 publications

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“…34, nº 1 p. 014 -020, 2012 sowing densities of 180, 250 and 360 thousand plants/ha respectively. These results agree with those of Ali et al (1996) and Ozer (2003), who found that low sowing densities increased branch numbers on canola plants. The component that most contributed to differences in seed yield in response to variations in plant populations was the number of pods/plant.…”

Section: Resultssupporting

confidence: 93%

Changes in canola plant architecture and seed physiological quality in response to different sowing densities

Abrahão

Junior

Mertz

et al. 2012

Rev. bras. sementes

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-The aim of this study was to evaluate changes in canola yield components and seed physiological quality in response to different sowing densities. The study was made in a greenhouse at the REIPESOL Company Technological Center, Madrid -Spain, with the commercial "Toccata" hybrid variety. The initial sowing density was 360,000 plants/ha and the plant population was later thinned down to include treatments of 250 and 180 thousand plants/ha. Harvested seeds were sent to the Seed Technology Center Laboratory (CATES) at the Madrid Polytechnic University (UPM) to evaluate changes in plant architecture and yield components, as well as the seed physiological quality of different plant parts. Results demonstrated that canola plants showed changes in morphology and yield components in response to different sowing densities. The population of 250,000 plants/ha showed the best seed yield demonstrating that maximum yield is directly related to a correct sowing density. The number of pods/plant was the most important component for increased seed yield/plant and seed yield/area. The spatial distribution of canola seeds in the plant and canola sowing density did not affect seed physiological quality.Index terms: Brassica napus, yield components, seed quality.Alterações na arquitetura de plantas e na qualidade fisiológica de sementes de canola em função da densidade de semeadura RESUMO -O objetivo neste estudo foi avaliar alterações nos componentes de rendimento e na qualidade fisiológica de sementes de canola, em diferentes densidades de semeadura. O experimento foi instalado em casa-de-vegetação, na Empresa REIPESOL, localizada na cidade de Madri -Espanha. Utilizou-se a variedade hibrida comercial "Toccata". Inicialmente a densidade de semeadura foi de 360 mil plantas por hectare. Posteriormente realizou-se o raleio obtendo-se as densidades de 360, 250 e 180 mil plantas por hectare. As sementes foram encaminhadas para Universidade Politécnica de Madri, onde foram avaliadas alterações na arquitetura das plantas, bem como, a qualidade fisiológica de sementes oriundas de diferentes partes da planta. As plantas de canola apresentaram alterações na morfologia e nos componentes do rendimento em resposta às variações na densidade de semeadura. A população de 250 mil plantas por hectare apresentou o melhor rendimento. O número de vagens por planta foi o componente que mais influenciou no aumento da produtividade. A distribuição espacial das sementes na planta e a densidade de semeadura não afetam a qualidade fisiológica das sementes.Termos para indexação: Brassica napus, componentes do rendimento, qualidade de sementes.

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Section: Resultssupporting

confidence: 93%

Changes in canola plant architecture and seed physiological quality in response to different sowing densities

Abrahão

Junior

Mertz

et al. 2012

Rev. bras. sementes

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“…Also, Naseri et al (2012) showed the highest canola seed yield (3636.6 kg h -1 ) and oilseed yield (1603.4 kg h -1 ) was from Hyola 401 at 60 plants m -2 . Ozer (2003) suggested that seed yield was affected by the spacing between rows. Leach et al (1999) also reported that plant density had no influence on seed oil, but more branches and fewer pod-bearing branches per plant were produced at the highest plant density.…”

Section: Introductionmentioning

confidence: 99%

Effect of plant density on yield and physiological characteristics of six canola cultivars

Nasiri

Samdaliri

Rad

et al. 2017

jsa

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An experiment was performed in the Seed and Plant Improvement Institute, Karaj, Iran to study the influence of plant densities on physiological traits of six canola cultivars. Treatment conditions included three different plant densities (40, 60, and 80 plants m-2) for triplicates of six canola cultivars, namely, Ahamadi, Opera, Okapi, L72, Karaj1, and Sw102. Results indicated that L72 cultivar exhibited the highest yield at the lowest plant density (40 plants m-2). For all cultivars, both plant densities of 60 and 80 plants m-2 resulted in lower relative water content than 40 plants m-2. Proline and carbohydrate content significantly increased with increasing plant densities. The highest proline content was obtained from L72 under the highest plant density, whereas the lowest was also detected in this cultivar at the lowest plant density. All cultivars grown at the lowest density showed higher amounts of photosynthetic pigments chlorophylls a and b than those at the highest density. Glucosinolate increased with increasing plant densities, with L72 yielding the highest quantity when grown at the highest density. In conclusion, a density of 40 plants m-2 is recommended for growing L72 in this region.

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“…cauliflower [2], broccoli [3][4], kohlrabi [5] or lettuce [6]. Optimal plant density can be achieved by establishing appropriate distances both between the rows as well as in the rows of plants [7][8][9]. Recommended spacing of Brussels sprouts depending on the date of cultivation and cultivar amounted to 50-70 cm between the rows and 50-60 cm in row, what responding cultivation area per plant from 0.25 to 0.42 m 2 [10][11].…”

Section: Introductionmentioning

confidence: 99%

Effect of plant density on the growth, development and yield of brussels sprouts (Brassica oleracea L. var. gemmifera L.)

et al. 2014

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A b s t r a c tPlant density is an important variable for achieving maximum yields and uniform vegetable maturity. Optimal plant density can be achieved by establishing appropriate distances both between the rows as well as in the rows of plants. The experiment was carried out between 2010-2012 at the experimental field of the Crimean Agrotechnological University in Simferopol, Ukraine. The experiment was established as randomised blocks with four replications. This study aimed to determine the effect of plant density on the growth, development and yield of Brussels sprouts. Increasing the area per plant resulted in a shortening of the time to the beginning of head formation, technical maturity and harvest. In all study years, increasing the distance between plants caused an increase in leaf assimilation area, stalk diameter and the number of heads per plant, however, the height of plants was lower. The most favourable parameters characterising marketable yield were found at an area per plant of 0.56 m 2 , however, the maximum yield from 1 ha (determining the profitability of the cultivation) was found at an area of 0.49 m 2 per plant.

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The effect of plant population densities on growth, yield and yield components of two spring rapeseed cultivars

Cited by 40 publications

References 13 publications

Changes in canola plant architecture and seed physiological quality in response to different sowing densities

Changes in canola plant architecture and seed physiological quality in response to different sowing densities

Effect of plant density on yield and physiological characteristics of six canola cultivars

Effect of plant density on the growth, development and yield of brussels sprouts (Brassica oleracea L. var. gemmifera L.)

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