The effect of excluding insect pollinators on seediness of Imperial mandarin fruits

1992 ◽  
Vol 32 (3) ◽  
pp. 409 ◽  
Author(s):  
SR Sykes ◽  
JV Possingham
Keyword(s):  
Major Effect ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Parthenocarpic Fruit ◽  
Insect Pollinators ◽  
Western Victoria ◽  
Insect Visitors ◽  
North Western ◽  
Number Of Seeds

The effect of caging trees to exclude insect visitors on the fruit density, seediness, and quality of Imperial mandarin in north-western Victoria was investigated during 1990-91.The major effect of caging was a reduction in fruit seediness, with open trees having 5-16% of fruit seedless and caged trees 80-95%. The number of seeds per fruit ranged from 0-18 and 0-5 for open and caged trees, respectively. Caging trees had no effect on mean fruit density, mean fruit weight, fruit juiciness, soluble solids and percentage citric acid. These results provided further evidence for parthenocarpic fruit development by Imperial mandarin.

scholarly journals Foliar Urea with N-(n-butyl) Thiophosphoric Triamide for Sustainable Yield and Quality of Pineapple in a Controlled Environment

2021 ◽  
Vol 13 (12) ◽  
pp. 6880
Author(s):  
Mohammad Amdadul Haque ◽  
Siti Zaharah Sakimin ◽  
Phebe Ding ◽  
Noraini Md. Jaafar ◽  
Mohd Khanif Yusop ◽  
...  
Keyword(s):  
Nitrogen Loss ◽  
Growth Yield ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Urea Solution ◽  
Urease Inhibitor ◽  
N Losses ◽  
N Accumulation ◽  
Yield And Quality

In agricultural production, nitrogen loss leads to economic loss and is a high environmental risk affecting plant growth, yield, and quality. Use of the N fertilizer with a urease inhibitor is thus necessary to minimize N losses and increase the efficiency of N. This study aimed to evaluate the effects of N-(n-butyl) Thiophosphoric Triamide (NBPT) on the growth, yield, and quality of pineapple. The experiment involved two foliar fertilizer treatments: 1% (w/v) urea solution with NBPT (2.25 mL kg−1 urea) was treated as NLU (NBPT Liquid Urea), and the same concentration of urea without NBPT served as the control. Both were applied 12 times, starting 1 month after planting (MAP) and continuing once a month for 12 months. The application of urea with NBPT notably increased the above-ground dry biomass per plant (20% and 10% at 8 and 12 MAP, respectively), leaf area per plant (23% and 15% at 8 and 12 MAP, respectively), N accumulation per plant (10%), PFPN (Partial Factor Productivity) (13%), and average fruit weight (15%) compared to the treatment with urea alone (control). The analysis of quality parameters indicated that urea with NBPT improves TSS (Total Soluble Solids) (19%), ascorbic acid (10%), and sucrose (14%) but reduces the total organic acid content (21%) in pineapple. When using urea with a urease inhibitor (NBPT), there was a significant improvement in growth, yield, quality, and nitrogen use efficiency, with the additional benefit of reduced nitrogen losses, in combination with easy handling. Hence, urea with a urease inhibitor can be used as a viable alternative for increasing pineapple yield by boosting growth with better fruit quality.

scholarly journals Yield and quality of strawberry cultivars

2010 ◽  
Vol 28 (2) ◽  
pp. 222-226 ◽  
Author(s):  
Luis Eduardo C Antunes ◽  
Nara Cristina Ristow ◽  
Ana Cristina R Krolow ◽  
Sílvia Carpenedo ◽  
Carlos Reisser Júnior
Keyword(s):  
Statistical Design ◽  
Rio Grande ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Climatic Conditions ◽  
Soluble Solids ◽  
Experimental Unit ◽  
Rio Grande Do Sul ◽  
Yield And Quality

The strawberry cultivation is an important economic activity in the Rio Grande do Sul State, Brazil, however the number of offered cultivars to the growers is reduced. The yield and quality of strawberry (Fragaria x ananassa Duch.) cultivars Camarosa, Galexia, Earlibrite, Festival, Plarionfre and Sabrosa was evaluated under the climatic conditions of Pelotas, Rio Grande do Sul State. We determined the number, mass, total soluble solids (TSS ºBrix), total titratable acidity (TTA), antocianin level and fresh fruits produced in an experimental unit. We also determined the production of fruits per hectare and per plant. The statistical design used in the experiment was of completely randomized blocks with 6 treatments (cultivars) and 4 replicates where the experimental unit was composed of 8 plants. The harvest began in the first half of August, extending to the second half of December, totalling 20 weeks. Plarionfre, Earlibrite and Festival cultivars showed higher production from the first half of October until the end of the first half of November. Camarosa reached higher productivity, mass of plants and fruit weight. There were no differences between the evaluated cultivars in the levels of TSS, antocianin, ATT and pH during the period of evaluation.

scholarly journals ANÁLISE BIOMÉTRICA DE FRUTOS E SEMENTES DE Passiflora cristalina Vanderplank & Zappi

Nativa ◽  
2019 ◽  
Vol 7 (2) ◽  
pp. 138
Author(s):  
Greiciele Farias da Silveira ◽  
Ana Aparecida Bandini Rossi ◽  
Uéliton Alves de Oliveira ◽  
Tatiane Lemos Varella ◽  
Fernanda Saragosa Rossi ◽  
...  
Keyword(s):  
Fruit Weight ◽  
Food Distribution ◽  
Soluble Solids ◽  
Volume Index ◽  
Phenotypic Variance ◽  
Bark Thickness ◽  
Mato Grosso ◽  
Biometric Analysis ◽  
Solids Content ◽  
Number Of Seeds

O objetivo do presente trabalho é caracterizar biometricamente os frutos e sementes de Passiflora cristalina Vanderplank & Zappi ocorrentes na região de Alta Floresta, Mato Grosso. Foram coletados em 2013 um total de 100 frutos maduros de 15 genótipos e destes foram selecionadas 300 sementes aleatoriamente. Os frutos foram analisados quanto ao comprimento, largura, espessura, peso, espessura da casca, o peso da polpa, o peso das sementes/fruto, número de sementes/fruto e teor de sólidos solúveis. As sementes foram avaliadas em relação ao comprimento, largura, espessura e índice de volume. As características biométricas foram analisadas mediante distribuição de frequência calculando-se o coeficiente de correlação de Spearman e o nível de significância através do teste T. O comprimento do fruto correlacionou-se positivamente com a largura e peso do fruto, espessura da casca e com peso das sementes, não havendo uma correlação com o número de sementes por fruto. Houve uma ampla distribuição de frequência das características avaliadas nos frutos, com exceção do peso das sementes. A alta variação fenotípica encontrada para a maioria das características avaliadas nos frutos e sementes de P. cristalina revela que a espécie tem divergência genética a ser utilizado em programas de seleção e conservação de recursos genéticos.Palavras-chave: divergência genética, maracujá, recursos genéticos. BIOMETRIC ANALYSIS OF FRUITS AND SEEDS OF Passiflora cristalina Vanderplank & Zappi ABSTRACT: The present work has presented the fruits and seeds of Passiflora cristalina Vanderplank & Zappi occurring in the region of Alta Floresta, Mato Grosso. A total of 100 mature fruits of 15 genotypes were collected in 2013 and 300 seeds were randomly selected. The fruits were inert to the length, thickness, thickness, weight, bark thickness, pulp weight, seed/fruit weight, number of seeds / fruit and soluble solids content. The seeds were evaluated for length, width, thickness and volume index. The biometric characteristics were analyzed with the calculation frequency calculated with the Spearman correlation coefficient and the level of significance throughout the T test. Fruit weight was correlated with fruit width and weight, bark thickness and weight of the fruits. Seeds without a key with the number of seeds per fruit. There is an offer of food distribution in the fruits, with the exception of the weight of the seeds. The high phenotypic variance found for a greater number of species evaluated in fruits and seeds of P.cristalina reveals that a type of genetics has been characterized in programs of selection and conservation of genetic resources.Keywords: genetic divergence, passion fruit, genetic resources.

scholarly journals FOLIAR APPLICATIONS OF ZINC, IRON AND MANGANESE INFLUENCE THE PLANT GROWTH AND FRUIT QUALITY OF PAPAYA CV. RED LADY

2020 ◽  
Vol 8 (5) ◽  
pp. 551-557
Author(s):  
Gurjot Singh Pelia ◽  
◽  
A K Baswal ◽  
Keyword(s):  
Plant Growth ◽  
Fruit Quality ◽  
Foliar Application ◽  
Ascorbic Acid Content ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Total Carotenoids ◽  
Heavy Soil

Prevalence of heavy soil is a major problem for fruit cultivation under Punjab conditions consequently leading to deficiency of several micro-nutrients including zinc (Zn), iron (Fe), and manganese (Mn) which adversely affects the growth and productivity. In this view, a study was planned to investigate the effect of foliar applications of zinc sulphate (ZnSO4), iron sulphate (FeSO4), and manganese sulphate (MnSO4) on vegetative growth, reproductive growth and fruit quality of papaya cv. Red lady. Plants sprayed with ZnSO4 (0.4 %) exhibited significantly highest plant height, plant girth, number of leaves, petiole length; initiated an earliest flowering and fruiting; and improved fruit quality viz., fruit weight, fruit length, titratable acidity, soluble solids concentrations, ascorbic acid content, total phenols content, and total carotenoids content as compared with the control and all other treatments. In conclusion, foliar application ZnSO4 (0.4 %) significantly improved plant growth and fruit quality in papaya cv. Red lady.

scholarly journals DESEMPENHO DE CULTIVARES DE TOMATE ITALIANO DE CRESCIMENTO DETERMINADO EM CULTIVO PROTEGIDO SOB ALTAS TEMPERATURAS

Nativa ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 359-356
Author(s):  
Daiane Andréia Trento ◽  
Darley Tiago Antunes ◽  
Flávio Fernandes Júnior ◽  
Márcio Roggia Zanuzo ◽  
Rivanildo Dallacort ◽  
...  
Keyword(s):  
Production Quality ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Lycopersicum Esculentum ◽  
Mato Grosso ◽  
Total Soluble Solids ◽  
Determinate Growth ◽  
Tomato Cultivars

O objetivo desse trabalho foi avaliar a produção, a qualidade e tempo de prateleira de cultivares de tomate tipo italiano de crescimento determinado, produzidos sob ambiente protegido em condições de altas temperaturas. O cultivo foi realizado em Nova Mutum – MT, foram avaliados cinco cultivares: Fascínio (Feltrin sementes), Hy Color (Horticeres), Santa Adélia (TopSeed), SM-16 (Seminis) e Supera F1 (TopSeed), dispostos em blocos casualizados, com quatro repetições. As plantas foram conduzidas em “meia estaca” e não foram podadas. Os parâmetros avaliados foram relativos a produção, a qualidade dos frutos, tempo de prateleira e qualidade no pós-colheita. A cultivar Fascínio apresentou produtividade de 186,1 t ha-1, maior massa média de frutos (144,3g), maior calibre de fruto, (60,7mm), e menor perda de massa no pós-colheita (6,23%). Os melhores resultados de sólidos solúveis totais dos frutos que completaram a maturação na planta foram obtidos das cultivares Santa Adélia (4,3), Fascínio (4,27) e Hy Color (4,21), e dos frutos colhidos no estádio verde-maduro obteve destaque a cultivar Santa Adélia (5,85), e os frutos que ficaram em temperatura ambiente obtiveram maior média de sólidos solúveis totais (5,55). Palavras-chave: termotolerância; Lycopersicum esculentum Mill; produtividade; pós colheita; ambiente protegido.   The performance of determinate growth italian tomato cultivars in protected cropping under high temperatures   ABSTRACT: This study aimed to evaluate the production, quality and shelf time of determinate growth Italian tomato cultivars from a protected environment under high temperature conditions.  The cultivation was conducted in Nova Mutum, state of Mato Grosso, Brazil. Five cultivars were evaluated: ‘Fascínio’ (Feltrin Sementes), ‘Hy Color’ (Horticeres), ‘Santa Adélia’ (TopSeed), ‘SM-16’ (Seminis) and ‘Supera F1’ (TopSeed), disposed in randomized blocks with four repetitions. The plants were managed into the “meia estaca” tutoring method and were not pruned. The parameters evaluated were related to the production, quality of fruits, shelf time and postharvest quality. The ‘Fascínio’ cultivar presented productivity of 186.1 t ha-1, the largest average fruit weight (144.3 g), the largest fruit gauge (60.7 mm) and the smallest postharvest weight loss (6.23%). The total soluble solids best results of fruits that have matured in the plant were obtained from the ‘Santa Adélia’ (4.3), ‘Fascínio’ (4.27) e ‘Hy Color’ (4.21) cultivars. Among the fruits harvested at the mature-green stage, the ‘Santa Adélia’ (5.85) cultivar stood out. The fruits that stayed at room temperature obtained the largest total soluble solids average (5.55). Keywords: thermotolerance; Lycopersicum esculentum Mill; productivity; postharvest; protected environment.

scholarly journals Sweet cherry competitive varieties for the horticulture of the Krasnodar Territory

2021 ◽  
pp. 29-35
Author(s):  
R. Sh. Zaremuk ◽  
Yu. A. Dolya
Keyword(s):  
Sweet Cherry ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Experimental Production ◽  
Scientific Center ◽  
The North ◽  
Local Breeding ◽  
New Varieties

Creation of new varieties that combine a complex of valuable traits, incl. the marketability and quality of fruits for updating the assortment of sweet cherry is an urgent direction of breeding research. The paper presents the results of a long-term work on the assessment of 12 varieties of sweet cherries of domestic and foreign breeding according to the main parameters of marketability and quality of fruits. The studies were carried out in 2015–2020 on the basis of the «Tsentralnoye» experimental production farm of the North Caucasian Federal Scientific Center of Horticulture, Viticulture, Winemaking. As a result of regional breeding and long-term variety study sweet cherry varieties of local breeding (Alaya, Volshebnitsa, Chernie glaza) and introduced varieties (Anonce, Vasilisa, Kroupnoplodnaya, Sweet Heart, Skina) with larger fruits (fruit weight of 8.5–12.0 g) were identified. These varieties correspond to world marketability standards. Varieties with high biochemical parameters have been revealed: vitamin C (10.9–13.0 mg/100 g) Volshebnitsa, Podarok leta, Anonce; vitamin P (81.6–116.0 mg/100 g) Volshebnitsa, Podarok leta, Kroupnoplodnaya; anthocyanins (213.5–390.0 mg/100 g) Madonna, Chernie glaza; sugars (14.2–15.2 %) Alaya, Volshebnitsa, Podarok leta; soluble solids (19.8–22.8 %) Alaya and Volshebnitsa. A greatest variation in parameters (Cv = 60 %) was noted in the number of anthocyanins from 87.0 in the Volshebnitsa variety to 390.0 mg/100 g in the Madonna variety. At the same time, the supposed direct correlation between the ripening period and the accumulation of sugars (R2 = 0.083) and dry matter (R2 = 0.107) was not revealed, due primarily to the varietal specifics and year conditions. For modern technologies of the production of high-quality cherry products in the south of the country, domestic varieties Krasnaya devitsa, Volshebnitsa, Alaya, introduced varieties Anonce, Kroupnoplodnaya, Sweet Heart and Skina, stably bearing fruit under stress conditions, with a yield of 20.0 t/ha with a planting scheme 5.3 m, high marketable and taste qualities were suggested. Super early ripening cherry variety Madonna was recommended to expand the regional cherry conveyor.

scholarly journals YIELD AND QUALITY OF TRIPLOID WATERMELON HYBRIDS.

HortScience ◽  
1990 ◽  
Vol 25 (8) ◽  
pp. 859f-859
Author(s):  
Donald N. Maynard ◽  
Gary W. Elmstrom
Keyword(s):  
Total Yield ◽  
Fruit Weight ◽  
The Other ◽  
Soluble Solids ◽  
Yield And Quality ◽  
Other Hand ◽  
Seedless Watermelon ◽  
Triploid Watermelon

Evaluations of 30 triploid (seedless) watermelon hybrids were conducted in the Spring 1989 season at Bradenton and Leesburg, Florida. There was considerable variation in relative cultivar yields at the two locations. However, consistency in some cultivars did occur. 'HMX 7924' produced the highest total yield and 'CFREC 88-2' had high total yields at both locations. On the other hand, 'ACX 882322', 'Fengshan No. 1', 'FMX 28', 'Fummy', 'Honeyheart', 'Nova', and 'NVH 4295' produced low total yields at both locations. Average fruit weight was high for 'Ssuper Sweet Brand 5244', 'CFREC 88-4', and 'HMX 7924' whereas 'ACX 882322', 'FMX 28', 'Fengshan No. 1', 'Nova', and 'PSR 49087' produced low average fruit weight. Soluble solids exceeded 11% in all entries at Bradenton whereas two entries were lower than 10% at Leesburg. Several experimental lines out performed the named cultivars suggesting that future introductions will be superior to those already available.

scholarly journals The Influence of Climate on Fruit Development and Quality of Four Low-chill Peach Cultivars

HortScience ◽  
2009 ◽  
Vol 44 (3) ◽  
pp. 666-670 ◽  
Author(s):  
Todd W. Wert ◽  
Jeffrey G. Williamson ◽  
Jose X. Chaparro ◽  
E. Paul Miller ◽  
Robert E. Rouse
Keyword(s):  
Fruit Development ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Soluble Solids Content ◽  
North Central ◽  
Southwest Florida ◽  
The North ◽  
Solids Content

The effect of climate was observed on fruit quality of four low-chill peach cultivars (Flordaprince, Flordaglo, UFGold, and TropicBeauty). The cultivars were evaluated in three locations (north–central, central, and southwest Florida). Soluble solids content (SSC), titratable acidity (TA), SSC:TA ratio, fruit weight, blush, and fruit development period (FDP) were determined. Longer FDPs were observed at the north–central location than at the southwest location. Fruit development and the expression of quality attributes were affected by location during fruit growth with higher color and SSC and shorter FDP occurring under warmer conditions. Within locations, ‘UFGold’ had the shortest FDP except at the southwest location where its chilling requirement may not have been met. At the central and southwest locations, ‘UFGold’ also tended to have lower TA values and higher SSC;TA ratios than the other cultivars.

scholarly journals Postharvest quality of peaches harvested from integrated and conventional production systems

2007 ◽  
Vol 42 (6) ◽  
pp. 793-801 ◽  
Author(s):  
Eduardo Seibert ◽  
Michel Elias Casali ◽  
Marcos Laux de Leão ◽  
Ernani Pezzi ◽  
Adriana Regina Corrent ◽  
...  
Keyword(s):  
Prunus Persica ◽  
Production Systems ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Weight Losses ◽  
Conventional Production ◽  
The City

Over three years the postharvest quality of 'Marli' peaches harvested from the integrated (IFP) and conventional production (CFP) systems was evaluated. The peaches were harvested from commercial orchards of Prunus persica at two locations close to the city of São Jerônimo, RS, Brazil, and stored at 0.5°C for 10, 20 or 30 days. The peaches were evaluated at harvest, at retrieval from storage and after ripening periods at 20°C. No differences in fruit weight losses were determined. Decay incidence was low, and no differences were detected amongst systems in both 2001 and 2002 seasons, but in the 2000 season CFP peaches were more decayed. Flesh firmness of peaches from the IFP system were greater than CFP fruits in the years 2000 and 2001. In 2002, firmness changed little during storage and ripening. Peaches from the IFP in 2000 had higher titratable acidity and lower soluble solids. In the 2000 season, flesh browning was observed in decayed fruits, always at ripening after 20 or 30 days of cold storage Chilling injuries such as browning, woolliness and leatheriness ocurred in 2002. There were no differences amongst systems related to peach quality.

scholarly journals QUALIDADE E PRODUTIVIDADE DE FRUTOS DE FIGO CULTIVADO EM TRÊS DENSIDADES DE PLANTIO

2018 ◽  
Vol 14 (4) ◽  
pp. 161-166
Author(s):  
Scheila Lucia Ecker ◽  
Clevison Luiz Giacobbo ◽  
Leandro Galon ◽  
Adriana Lugaresi ◽  
Gian Carlos Girardi
Keyword(s):  
Fruit Quality ◽  
Dry Matter ◽  
Fruit Size ◽  
Dry Mass ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Planting Density ◽  
Significant Difference ◽  
Fig Tree

The objective of this work was to verify the influence of planting density on productivity and fruit quality of the fig tree. The design was used in three blocks, the plants of the cultivar Roxo de Valinhos were submitted to three planting spacings: 5 x 0.5 m; 5 x 1.0 m; and 5 x 1.5 m. The evaluated characteristics were: length of branches; average weekly growth of branches; fruit size; average fruit weight;soluble solids (°Brix); yield of mature fruits; productivity of green fruits; accumulated productivity; and dry mass of fruits.The length of the branches was not influenced by planting spacing, the plants conducted at lower densities presented higher productivity, both of green fruits and accumulated productivity.Plants submitted to lower planting density produced fruits with higher dry matter, but these were smaller in size, but without significant difference for those submitted to lower density. It wasconcluded that productivity is directly affected by fig planting density, but not all the qualitative aspects of the fruits were affected.

Sign in / Sign up

Export Citation Format

Share Document