scholarly journals Modified Off–Season Technology to the Flowering Time and Fruit Yield of Arumanis Mango (Mangifera indica L.)

2021 ◽  
Vol 226 ◽  
pp. 00045
Author(s):  
Syarif Husen ◽  
Erny Ishartati ◽  
Muhidin Muhidin ◽  
Devi Dwi Siskawardani ◽  
Anjar Rizky ◽  
...  

The purpose of this study was to observe the technology of mango fruit production at off-season used growth regulators. The research was conducted with three treatments namely: i) Paclobutrazol dosage (control, 5 mL L–1 per tree, 10 mL L–1 per tree and 15 L–1 per tree). ii) Ethephon dosages (0 mL L-1 per tree, 400 mL L–1 per tree, 600 mL L–1 per tree and 800 mL L–1 per tree) that applied 1 mo after paclobutrazol addition. iii) Paclobutrazol (P) and organic fertilizer (F) application in combination as follows: (control, 5 mL + 10 kg, 10 mL + 15 kg, 15 mL + 20 kg) Randomized Completely Block Designed (RCBD) with five replications was used. The results indicated that i) Paclobutrazol application accelerated the flowering age, shortens the panicle length, and increased fruit yield of the tree. ii) Giving Ethephon accelerated the flowering period, enhanced both the panicles number and yields. The treatment of ethephones 600 mL L–1 produced the highest fruit weight, 182.60 kg, respectively iii) The Paclobutrazol and organic fertilizer application indicated significantly (p < 0.05) to the panicles number and the fruit weight yield is higher than the control.

1997 ◽  
Vol 37 (4) ◽  
pp. 463 ◽  
Author(s):  
A. J. Macnish ◽  
D. C. Joyce ◽  
S. E. Hetherington

Summary. Water loss and premature ripening during postharvest handling reduce the market quality of mango fruit. Towards investigating the use of moisture barrier liners for mango fruit trays, relationships between in-package relative humidity and weight loss and ripening of ‘Kensington Pride’ fruit were studied. Individual fruit were held at 20°C in sealed plastic containers (small 1.2 L buckets). The lid of each container had a single circular hole. Holes were of various sizes, ranging from 5 to 135 mm diameter. Ripening mature green fruit held at the lowest relative humidity of 57% (135 mm diameter hole) lost weight at a significantly (P£0.05) greater rate (10 mg/g initial FW. day) than fruit at higher relative humidities of 59 (open air), 60 (95 mm diameter hole), 61 (55 mm diameter hole), 71 (35 mm diameter hole), 74 (25 mm diameter hole) and 83% (25 mm diameter hole plus free water). These fruit at higher relative humidities lost weight at rates ranging between 9 and 4 mg/g initial FW. day. Fruit softening and skin colouring rates were similar across all relative humidities. In a second experiment, mango fruit were allowed to ripen in containers with smaller holes, ranging from 5 to 95 mm diameter, in their lids. Fruit at the lowest relative humidity (60%, 95 mm diameter hole) lost weight at a significantly (P≤0.05) greater rate (9 mg/g initial FW. day) than fruit from other treatments. Furthermore, these fruit ripened about 2 days sooner than fruit at higher relative humidities: 85 (25 mm diameter hole), 88 (15 mm diameter hole), 91 (10 mm diameter hole) and 93% (5 mm diameter hole). Fruit at the higher relative humidities lost weight at rates between 6 and 2 mg/g initial FW. day, and ripened in 6 to 12 days. Thus, hole size can be varied in order to control in-package relative humidity and regulate mango fruit weight loss and ripening. Australian Journal of Experimental Agriculture, 1997, 37, 463–7 463


2001 ◽  
Vol 126 (2) ◽  
pp. 175-181 ◽  
Author(s):  
D. Michael Glenn ◽  
Gary J. Puterka ◽  
Stephen R. Drake ◽  
Thomas R. Unruh ◽  
Allen L. Knight ◽  
...  

Particle film technology is a developing pest control system for tree fruit production systems. Trials were performed in Santiago, Chile, and York Springs, Pa., Wenatchee and Yakima, Wash., and Kearneysville, W. Va., to evaluate the effect of particle treatments on apple [Malus sylvestris (L.) Mill. var. domestica (Borkh) Manst.] leaf physiology, fruit yield, and fruit quality. Leaf carbon assimilation was increased and canopy temperatures were reduced by particle treatments in seven of the eight trials. Yield and/or fruit weight was increased by the particle treatments in seven of the eight trials. In Santiago and Kearneysville, a* values of the fruit surface were more positive in all trials although a* values were not increased in Wenatchee and Yakima. Results indicate that particle film technology is an effective tool in reducing heat stress in apple trees that may result in increased yield potential and quality.


2021 ◽  
Vol 37 (37) ◽  
pp. 60-69
Author(s):  
Mirela Calinescu ◽  
◽  
Ivona Mazilu ◽  
Emil Chitu ◽  
Madalina Butac ◽  
...  

The aim of this paper was to study the influence of low vigor rootstocks on the 'Regina' cherry cultivar. The study was conducted at Research Institute for Fruit Growing Pitesti, Arges county, Romania between 2019 and 2021. A bifactorial experiment was set up, with A factor-the rootstock ('Gisela 3', 'Gisela 5', 'Gisela 12' and 'Weigi 2') and B factor-the study year (2019, 2020 and 2021). Fruiting and vegetative growth data (fruit production, the trunck cross-section area-TCSA, the annual increase of TCSA, the productivity index and the ratio between the fruit production and the annual increase of TCSA), as well as fruit quality data (fruit mass, firmness, pH, total soluble content, chromatic coordinates of epicarp color and chlorophyll fluorescence) were collected. 'Gisela 5' rootstock recorded the highest value of TCSA annual increase (11.46 kg/cm2) and had also the highest cromatic coordinates values: colour brightness (25.68), red pigment (15.61) and yellow content (4.12).The highest vigor of the cultivar 'Regina' was observed in 'Weigi 2' rootstock variant (with an TCSA value of 44.71 cm2), given that 'Weigi 2' TCSA annual increase was similar to 'Gisela 5'. 'Gisela 3' rootstock stood out for its fruit highest pH (3.97), fruit yield (13.51 t/ha), lowest vigor (TCSA=24.19 cm2), smallest annual TCSA increase (6.11 cm2), highest productivity index 0.219 kg/cm2) and highest fruit production to annual TCSA increase ratio (1.79 kg/cm2). Taking into account climatic accidents that marked the spring of 2021, on the average of the study years, the cultivar 'Regina' grafted on the rootstock 'Gisela 12' was distinguished by fruit weight (10.02 g), firmness (66.53 units HPE Bareiss) and TSS (16.03°Brix) on the background of the lowest fruit yield. A negative very signifficant correlation between fruit yield and fruit quality traits (weight, firmness and total soluble solids) was found.


Biotecnia ◽  
2020 ◽  
Vol 22 (2) ◽  
pp. 20-27
Author(s):  
Moisés Morales-Martinez ◽  
Pedro Antonio Moscoso-Ramírez ◽  
Mepivoseth Castelán-Estrada ◽  
Adriana Contreras- Oliva

The flowering induction in mango (Mangifera indica L.) orchards is an agricultural practice carried out on tropical regions to obtain fruits out-of-season looking to reach better sale prices. The objective of this research was to evaluate the effect of potassium (PN), ammonium nitrate (AN) and paclobutrazol (PBZ) on flowering induction and fruit production in mango cv. Tommy Atkins. The experiment included fourteen treatments with 2, 4, and 6 % PN, and 2, 3 and 4 % AN applied in combination with PBZ (1 g of a.i. m-1 of canopy diameter), paclobutrazol alone (1 g of a.i. m-1 of canopy diameter), and a control (water), which were arranged in a completely randomized design with three replicates. Results show that floral induction and fruit production were improved: PBZ followed by foliar application PN 2 %, 4 % or 6 % induced flowering 16 days after treatments. Likewise, the major number of emerged panicles were obtained with PBZ + PN 6 %. An increase on fruit weight and size reduction was observed at harvest. PBZ followed by foliar application of nitrates induced flowering and enhanced the number developed panicles in mango cv. Tommy Atkins.RESUMENLa inducción floral en mango (Mangifera indica L.) es una práctica agrícola común en regiones tropicales, tendiente a obtener frutos fuera de temporada para lograr mejores precios de la cosecha. Este trabajo tuvo como objetivo evaluar el efecto de tratamientos de nitrato de potasio (PN), nitrato de amonio (AN) y paclobutrazol (PBZ) sobre la inducción floral y producción de fruto en mango cv. Tommy Atkins. Los tratamientos con PN al 2, 4, y 6 % y AN al 2, 3 y 4 % fueron aplicados solos o combinados con PBZ (1 g de i.a. m-1 de diámetro de copa), PBZ solo y un testigo (agua) bajo un diseño completamente al azar, con tres repeticiones. Se midieron variables de inducción floral y producción de fruto. Los resultados muestran que aplicación foliar de PBZ seguida de PN (2 %), (4 %) o (6 %) indujeron floración 16 días después del tratamiento. El mayor número de panículas emergidas se obtuvieron con PBZ + PN 6 %. Se observó una reducción de peso y tamaño de fruto a la cosecha. El PBZ seguido de aplicaciones foliares con NP y AN induce floración y aumenta el número de panículas desarrolladas en mango cv. Tommy Atkins.


2020 ◽  
Vol 5 (2) ◽  
pp. 327-336
Author(s):  
Sahrun Riza ◽  
Erita Hayati ◽  
Ainun Marliah

Abstrak. Cabai merah merupakan komoditas hortikultural yang termasuk golongan sayuran rempah yang termasuk famili terung-terungan dan sebagai penyedap masakan. Penelitian ini bertujuan untuk melihat pengaruh pemberian jenis pupuk organik terhadap pertumbuhan dan hasil tanaman cabai merah dan untuk melihat pengaruh varietas terhadap pertumbuhan dan hasil tanaman cabai merah serta untuk mengetahui ada tidaknya interaksi antara jenis pupuk organik dan varietas cabai merah. Penelitian ini dilakukan pada bulan Januari sampai dengan bulan Juni 2019. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) pola faktorial. Faktor yang diteliti terdiri dari dua faktor yaitu pupuk organik dan varietas. Faktor pertama jenis pupuk organik yang terdiri dari  3 taraf yaitu kontrol, pupuk kandang sapi dan pupuk kandang ayam, sedangkan faktor kedua varietas cabai merah yang terdiri dari 3 taraf yaitu Varietas TM-999, varietas Odeng dan varietas Lede Uwe gayo. Hasil penelitian menunjukkan bahwa perlakuan pupuk organik berpengaruh sangat nyata terhadap jumlah buah per tanaman dan berat buah per tanaman serta terdapat pengaruh yang nyata  terhadap jumlah cabang produktif dan potensi hasil ton/ha, namun terdapat pengaruh tidak nyata terhadap tinggi tanaman umur 15, 30 dan 45 hari setelah tanam dan diameter batang umur 15, 30 dan 45 hari setelah tanam. Pemberian pupuk organik pada berat buah per tanaman dan potensi hasil terbaik diperoleh pada pemberian pupuk kandang ayam. Sedangkan perlakuan varietas berpengaruh sangat nyata terhadap jumlah cabang produktif, berat buah per tanaman dan potensi hasil, namun terdapat pengaruh yang tidak nyata terhadap tinggi tanaman umur 15, 30 dan 45 hari setelah tanam, diameter batang umur 15, 30 dan 45 hari setelah tanam dan jumlah buah per tanaman. Jumlah cabang produktif, berat buah per tanaman dan potensi hasil tanaman cabai merah terbaik diperoleh pada penggunaan varietas TM 999. Terdapat interaksi yang sangat nyata antara pupuk organik dengan varietas terhadap jumlah buah per tanaman, berat buah per tanaman dan terdapat interaksi nyata terhadap potensi hasil. Kata kunci : Cabai Merah, Pupuk Organik, VarietasAbstrac. Red chili is a horticultural commodity that belongs to the spice vegetable group and part of the eggplant family that is used as a food flavoring. This study aims to look at the effect of applying organic fertilizer on the growth and yield of red chili plants;to see the effect of varieties on the growth and yield of red chili plants; and to find out whether there is an interaction between types of organic fertilizer and red chili varieties. This study employed factorial randomized block design (RBD) with two factors studied namely organic fertilizer and varieties. The first factor is the type of organic fertilizer consisting of 3 levels, namely control, cow manure and chicken manure, while the second factor is red chili varieties consisting of 3 levels, namely the TM-999 variety, Odeng variety and the Gayo Lede Uwe variety. The results showed that the treatment of organic fertilizer had a very significant effect on the number of productive branches and the potential yield of tons/ha, but there was no significant effect on plant height at ages 15, 30 and 45 days after planting and stem diameter 15, 30 and 45 days after planting. The fertilizer application at the fruit weight per plant and the best potential results obtained in the provision of chicken manure. Whereas, the treatment of varieties has a very significant effect on the number of productive branches, fruit weight per plant and yield potential, but there is no significant effect on plant height 15, 30 and 45 days after planting, stem diameter 15, 30 and 45 days after planting and number of fruits per plant. The number of productive branches, fruit weight per plant and the best yield potential of red chili plants were obtained from the use of TM 999 varieties. There was a very real interaction between organic fertilizer and varieties on the number of fruits per plant; fruit weight per plant; and there was a real interaction with yield potential.Keywords:Red Chili, Organic Fertilizer, Varieties


Author(s):  
Funda Ulusu ◽  
Elif Yavuzaslanoğlu

Greenhouse tomato production is in the first place in Turkey, 34% of total tomato production (3.614.472 tonnes) is under greenhouse conditions. The increase in yield in Turkey is due to the spread of undergrowth cultivation besides the use of qualified varieties and seeds. Synthetic fertilizers can’t be used to obtain economic efficiency in underground organic tomato growing Therefore, the application of alternative fertilizers (barn stubble, green manure, organic fertilizer, vermicompost etc.) needs to be improved. For this purpose, effect of the eight different fertilizer combination including organic and worm liquid fertilizer, humic acid and mycorrhizae applications on tomato plant and fruit yield were investigated in the study. Negative check without any fertilizer application growing and a positive check; a synthetic liquid fertilizer application was included. Experiment was set up according to completely randomised block design with 3 replications under greenhouse conditions. Tomato fruit length, diameter and weight was determined as fruit yield and fresh and dry weight as plant yield. There was not any statistical difference among fertilizer applications for fruit and plant yield. However, the highest tomato fruit yield was obtained in the treatments of organic (7.17 kg/ plot) and worm fertilizers (4,80 kg/ plot) in combination with mycorrhizae. The results were similar for fruit diameter and length. Plant fresh and dry weight was between 2.01 to 5.92 and 0.368 to 1.153 kg, respectively. The highest plant weight was belong to mycorrhizae and organic fertilizer application.


1998 ◽  
Vol 21 (1) ◽  
pp. 99-103
Author(s):  
João Alencar de Sousa ◽  
Wilson Roberto Maluf

This study was carried out to obtain estimates of heterosis in crosses between seven eggplant cultivars (Embu = E; Santa Genebra = SG; Viserba = V; Aubergine de Barbentane = AB; Florida Market 10 = FM; Black Beauty = BB, and Melitino = M) and two breeding lines (B-14-07 = B1 and B-31-06 = B2). The F1 hybrids used were: E x FM; E x BB; E x M; E x B1; E x B2; SG x FM; SG x BB; SG x M; SG x B1; SG x B2; V x FM; V x B1; V x B2; AB x FM; AB x M; AB x B1; AB x B2 and M x FM. Cultivars, lines and hybrids were evaluated at the ESAL experimental field in Lavras, MG, from February to October 1992. A randomized complete block design with three replications was used. Significant heterosis relative to the parental means was detected for all traits studied. Their values ranged from +41.23% to +113.31% for total fruit yield, from -11.45% to +26.17% for average fruit weight, and from +27.98% to +141.81% for early production. Heterosis relative to the superior parent ranged from +13.89% to +92.51% for total fruit yield. Hybrid pairs: SG x FM and AB x B1, V x FM and AB x FM, E x M and AB x B1 were the most heterotic relative to the parental mean for total fruit production, mean fruit weight and early production, respectively. The hybrids displaying highest heterosis relative to the superior parent for total yield were AB x B1 and SG x FM.


2021 ◽  
pp. 66-75
Author(s):  
Andi Dirpan ◽  
Andi Nurfaidah Rahman ◽  
Muhammad Tahir Sapsal ◽  
Mulyati M. Tahir ◽  
Singgang Dewitara

The increase in the amount of mango fruit production is due to their high nutritional content affordable, and relatively easy to find. However, like other horticultural crops, Mango can be easily bruised or damaged. The fruit damage can be caused by improper post-harvest handling, causing mango quality and has a short shelf life. The study aimed to determine the shelf life and quality of mango Golek stored in Zero Energy Cool Chamber (ZECC) using LDPE packaging and LDPE packaging with additional perforations. The first stage was observing the physical quality of the fruit and then post-harvest treatment such as washing, packaging and storing mangoes at ZECC temperature (±26°C). The second stage was the mango quality test after storage. Tests in the form of skin color and organoleptic. The results obtained in this study were mangoes packed with LDPE and LDPE with perforations. Mango packaged in LDPE packaging were able to retain L* color, b* color, organoleptic color, aroma, texture and taste. Mangoes packed with perforated LDPE packaging can retail,  L * color, b * color, organoleptic color, aroma, texture and taste


AGRIFOR ◽  
2018 ◽  
Vol 17 (1) ◽  
pp. 89
Author(s):  
Emiliana Lidya ◽  
Noor Jannah, Abdul Rahmi

The research objective were to study the effect of compost fertilizer and Nasa liquid organic fertilizer (POC Nasa) and its interaction on the growth and yield of cucumber and also to find the proper dosage of compost fertilizer and POC Nasa concentration for obtaining the best growth and yield of cucumber.The research used Completely Randomized Design (CRD) in 4 x 4 Factorial Experiment and three replications.  The factor was the dosage of compost fertilizer (K) consisting of 4 levels : no compost fertilizer application (k0), 48 g polybag-1(k1), 64 g polybag-1 (k2); and 80g polybag-1(k3).   The second factor was the concentration of POC Nasa (D) consisting 4 levels : no POC Nasa application (d0), 1 ml l-1water (d1),  2 ml l-1water (d2), and 3 ml l-1water (d3).The results showed that: (1) the compost fertilizer treatment affected significantly on the weight of one fruit and the weight of fruit per plant, it affected very significantly on the plant lenght at age 15 and 30 days after planting, and fruit diameter, but it did not affect significantly on the number of fruit per plant.  The best production was produced at 48 g polybag-1 (k1) treatment of 3,77 kg plant-1, while the least one was produced at the 80 g polybag-1 (k3) treatment of 3,06 kg plant-1; (2)the POC Nasa treatment affected significantly on the weight of one fruit; and it affected very significanly on the plant lenght at age 30 days after planting and fruit diameter, but it did not affect significantly on the plant lenght at age 15 days after planting, number of fruit per plant, and fruit weight per plant;  and (3) the interaction treatment between compost fertilizer and POC Nasa affected significantly on the weight of one fruit and affected very significantly  on the fruit diameter, but did not affect significantly on the plant lenght at age 15 and 30 after planting, the number of fruit and fruit weight per plant.


Author(s):  
Senewa Bobby Pholoma ◽  
Vallentino Emongor ◽  
Seoleseng Tshwenyane

Background: The temperature being the most important environmental factor that influences the deterioration of perishable commodities. It is often critical that fresh produce rapidly reach the optimal pulp temperature for short term storage if it is to maintain its highest visual quality, flavour, texture and nutritional content (Kader, 2013). Aims: The effects of storage temperature and hot water at various temperature and duration on chemical and textural characteristics of the Keitt mango fruit were evaluated for the 2015/16 growing season in Botswana. Materials and Methods: The treatments were fruits dipped in distilled water at room temperature (25±2ºC- control), fruits dipped in hot water at 50 and 55ºC for a duration of 3, 5 and 10 minutes, and storage temperatures at 4, 7, 10, 13, or 25±2ºC, plus 95% RH. Results: The results showed that as the storage temperature and water temperature decreased, the proline content and electrolyte leakage increased significantly (P ≤ 0.0001). The interactions of storage temperature and hot water temperature, and duration in which mango fruit was treated with hot water, significantly (P ≤ 0.01) maintained vitamin C content, firmness and reduced fruit weight loss during storage and seven days after storage when the fruit was kept at room temperature. Conclusion: Chemical and physical attributes of Keitt mango fruits were significantly improved by the interactions between storage temperature, hot water temperature and duration.


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