Growth and Yield Characteristics of Paprika Pepper (Capsicum annum L.) in Response to Plant Density

Aminifard, Mohammad Hossein; Aroiee, Hossein; Karimpour, Sajede; Nemati, Hossein

doi:10.3923/ajps.2010.276.280

Cited by 22 publications

(24 citation statements)

References 7 publications

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“…tauschii leaves at HPD. Previous studies have described that light is essential for the biosynthesis of chlorophyll and that plant density observably influenced the contents of chlorophyll (Hashemi-Dezfouli and Herbert, 1992;Aminifard et al, 2010), which was strongly concordant with the observations in this study. Chlorophyll is crucial for photosynthesis through absorbing and transferring light.…”

Section: Discussionsupporting

confidence: 93%

Regulation of Aegilops tauschii Coss Tiller Bud Growth by Plant Density: Transcriptomic, Physiological and Phytohormonal Responses

Cui

Chen

et al. 2020

Front. Plant Sci.

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Aegilops tauschii Coss is one of the most hazardous weeds that severely infests wheat fields in China. The tillering ability of Ae. tauschii strongly affects the occurrence and spread by influencing its seed output. In this study, Ae. tauschii was sown at low plant density (LPD) and high plant density (HPD) to investigate the effect of plant density on tiller bud outgrowth and its potential regulators using RNA-Seq. Additionally, the chlorophyll content and photosynthesis, soluble sugar and phytohormone levels were also determined at different plant densities. The results showed that an increased plant density significantly inhibited the elongation of tiller buds in the axil of the first leaf at 15 days after planting, with 7.69 mm at LPD and 1.69 mm at HPD. A total of seven putative tiller-related genes were selected and validated using quantitative real-time PCR. Furthermore, chlorophyll levels, photosynthetic efficiency, and soluble sugar contents were distinctly inhibited by HPD in Ae. tauschii, which may be responsible for the restriction of tiller bud growth. In addition, differentially expressed genes (DEGs) were markedly enriched in indole-3-acetic acid (IAA), abscisic acid (ABA), and gibberellin metabolism and signaling. Accordingly, the levels of ABA and gibberellin A3 in Ae. tauschii were strikingly higher at HPD compared with those at LPD, yet the reverse tendency was observed for IAA. Undoubtedly, such results will be highly beneficial for illuminating the underlying regulators of the Ae. tauschii tillering response to plant density and may provide new ideas for the control of this weed in the future.

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Section: Discussionsupporting

confidence: 93%

Regulation of Aegilops tauschii Coss Tiller Bud Growth by Plant Density: Transcriptomic, Physiological and Phytohormonal Responses

Cui

Chen

et al. 2020

Front. Plant Sci.

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“…But smaller distances also lead to reduced yields due to competition between plants for light, water, food, etc. [2,6,9] Mulching is an agrotechnical event, which is covering the soil surface with a layer of organic or inorganic materials, which aims to improve the conditions for plant growth. It helps to maintain a constant soil temperature, controls weeds, retain soil moisture and more [7,11].…”

Section: Introductionmentioning

confidence: 99%

Influence of Plant Density and Mulching on Growth and Yield of Lettuce (Lactuca sativa var. romana L.)

Yordanova¹,

Nikolov²

2017

IJOEAR

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The aim of the paper was to present the influence of plant density and different types of organic mulch on growth and yield of Romain lettuce. The field experiment was carried out in 2014 in the experimental field of University of Forestry-Sofia, with Romaine lettuce cv. Yellow beauty. The seedlings were planted at a distance of 30 x 30 cm and two different schemes were tested: parallel planting to form a 4-row bed and a chess planting to form a 7-row bed. For the purpose of the study were used different organic mulches, which were waste products from organic agriculture: barley straw (BS), well-rotted horse manure (HM), walnut wood sawdust (WS) and grass windrow (GW) and non-mulched control plots (NMC). The mulching materials were spread manually in a 5-6 cm thick layer, after strengthen the seedlings of Romain lettuce. On the 60th day after planting was the beginning of harvesting. It was found out that the seven-row bed and mulching influenced growth and yield of Romain lettuce. Mulching with HM has a significant effect on growth and yield. In the cultivation of lettuce in combination with horse manure mulch and seven-row bed, the yield increased by 18% compared to the non-mulched control in the same planting scheme and was 2.3 times higher than the non-mulched control in a fourrow bed. A significant effect on the mulched variants was established.

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“…Similar productive behavior in pepper C. annuum was obtained by Motsenbocker (1996) and Russo (2008), the first author working with 7.5 to 45-cm spacing between plants (121,100 to 20,200 plants/ha in 1.1-m spacing between lines) and the second author working with 8-48 cm spacing between plants (137,000 to 21,500 plants/ha). Recently, Aminifard et al (2010) and Paulus et al (2015) also verified that smaller spacing resulted in higher productivity of pepper fruits per area and lower productivity per plant. On the other hand, Paroissien & Flynn (2004) verified an increase in fruit productivity/ ha due to high density of plants in only one of the six conducted experiments, reduction of productivity in two of the six conducted experiments and no effect on productivity in the other three experiments.…”

Section: Resultsmentioning

confidence: 91%

Productivity, quality of fruits and architecture of Jalapeño pepper at different planting densities

et al. 2019

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Mechanizing the harvest of Jalapeño pepper involves changes in the production system. Spacings between plants in rows (10 to 40 cm; 60 cm fixed between rows) were evaluated in relation to plant architecture, productivity and fruit quality of cultivar BRS Sarakura during three years, in a randomized complete block design with five replicates. Productivity (41.9 to 78.8 t ha-1) and plant height (40.1 to 47.3 cm) responded linearly to density; on the other hand, productivity per plant responded negatively (0.48 to 1.04 kg plant-1). The stem first bifurcation height was little influenced. Fruit chemical analyses were carried out in the second year of the experiment; spacing significantly influenced pH (5.36 to 4.84), total titratable acidity (TTA) (0.48 to 0.36%) and total soluble solids (TSS)/TTA ratio (11.5 to 15.6); no influence on TSS (5.65%) was noticed, though. The increase of plant population provided an increase in productivity without affecting fruit quality; the highest height of the first bifurcation achieved may not be enough to enable mechanized harvesting of the cultivar BRS Sarakura.

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Growth and Yield Characteristics of Paprika Pepper (Capsicum annum L.) in Response to Plant Density

Cited by 22 publications

References 7 publications

Regulation of Aegilops tauschii Coss Tiller Bud Growth by Plant Density: Transcriptomic, Physiological and Phytohormonal Responses

Regulation of Aegilops tauschii Coss Tiller Bud Growth by Plant Density: Transcriptomic, Physiological and Phytohormonal Responses

Influence of Plant Density and Mulching on Growth and Yield of Lettuce (Lactuca sativa var. romana L.)

Productivity, quality of fruits and architecture of Jalapeño pepper at different planting densities

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