Guava cultivars of the world

Mitra, S.K.; Irenaeus, K.S. Thingreingam

doi:10.17660/actahortic.2018.1205.116

Cited by 9 publications

(6 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Results also showed that wind pollination and self-pollination of guava flowers seem to have a greater influence on fruit set than originally anticipated (Figure 2). It has been unclear from previous studies if guava is mainly pollinated by insects or self-pollinating but self-pollination within the same flower was believed to be uncommon due to the stigma being higher than the central anthers [26,32,34,41]. Our results show that self-pollination may be the most common pollination strategy in guava, more so than previously thought, which may be the reason fruit set was not related to landscape-level amount of forest and insect visitation.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Landscape-Level Effects of Forest on Pollinators and Fruit Set of Guava (Psidium guajava L.) in Orchards across Southern Thailand

et al. 2020

View full text Add to dashboard Cite

Pollination by wild pollinators is a key ecosystem service threatened by anthropogenic-induced land-use change. The proximity to natural habitat has previously been shown to positively affect pollinator communities and improve crop yield and quality but empirical evidence is limited from most parts of the World. Here, across six farms in Southern Thailand, we investigated the significance of landscape-level effects of natural habitat (proportion of and distance to evergreen forest) on both visitation rate and richness of pollinators as well as fruit set of guava (Psidium guajava L.), a local economically-important crop in the tropics. Overall, the most abundant pollinator was the Asian honey bee Apis cerana (39% of all visits) and different species of stingless bees (37%). We found that pollinator richness was unrelated to the proportion and distance to evergreen forest, however, the proportion of forest within a 1, 5 and 10 km radius had a significant positive impact on visitation rate of wild pollinators. Still, neither the various forest parameters nor pollinator visitation rate showed a significant impact on fruit set of guava, perhaps because guava self-pollinates. This illustrates that landscape-level degradation of natural habitat may negatively impact pollinator communities without diminishing the crop yield of the farmers.

show abstract

Section: Discussionmentioning

confidence: 99%

“…Here, we focus on plantations growing guava as a monoculture for commercial sale. All guava trees studied were of the local variety "Kimju guava" [34]. The study took place in Southern Thailand from November 2019 until March 2020.…”

Section: Study Site and Species (Psidium Guajava)mentioning

confidence: 99%

Landscape-Level Effects of Forest on Pollinators and Fruit Set of Guava (Psidium guajava L.) in Orchards across Southern Thailand

et al. 2020

View full text Add to dashboard Cite

show abstract

“…According to the literature provided by the Southern Horticultural Research Institute (SOFRI) [3], Mitra and Irenaeus [122], this study contains six cultivars of guava, including 'Nu hoang' (Nữ hoàng) or 'Queen guava', 'Ruot hong da san' (Ruột hồng da sần), 'Ruot hong da lang' (Ruột hồng da láng), 'Le Dai Loan' (Lê Ðài Loan) or Taiwan guava, 'Se' (Sẻ), and 'Ruot trang' (Ruột trắng). The 'Nu hoang' cultivar is characterized by white and soft flesh, few seeds, and orbicular fruits with a diameter of about 8 cm.…”

Section: Plant Materialsmentioning

confidence: 99%

Chemical Composition, Larvicidal and Molluscicidal Activity of Essential Oils of Six Guava Cultivars Grown in Vietnam

Luu,

Nguyen,

Satyal

et al. 2023

Plants

View full text Add to dashboard Cite

Diseases transmitted by mosquitoes and snails cause a large burden of disease in less developed countries, especially those with low-income levels. An approach to control vectors and intermediate hosts based on readily available essential oils, which are friendly to the environment and human health, may be an effective solution for disease control. Guava is a fruit tree grown on a large scale in many countries in the tropics, an area heavily affected by tropical diseases transmitted by mosquitoes and snails. Previous studies have reported that the extracted essential oils of guava cultivars have high yields, possess different chemotypes, and exhibit toxicity to different insect species. Therefore, this study was carried out with the aim of studying the chemical composition and pesticide activities of six cultivars of guava grown on a large scale in Vietnam. The essential oils were extracted by hydrodistillation using a Clevenger-type apparatus for 6 h. The components of the essential oils were determined using gas-chromatography–mass-spectrometry (GC-MS) analysis. Test methods for pesticide activities were performed in accordance with WHO guidelines and modifications. Essential oil samples from Vietnam fell into two composition-based clusters, one of (E)-β-caryophyllene and the other of limonene/(E)-β-caryophyllene. The essential oils PG03 and PG05 show promise as environmentally friendly pesticides when used to control Aedes mosquito larvae with values of 24 h LC50-aegypti of 0.96 and 0.40 µg/mL while 24 h LC50-albopictus of 0.50 and 0.42 µg/mL. These two essential oils showed selective toxicity against Aedes mosquito larvae and were safe against the non-target organism Anisops bouvieri. Other essential oils may be considered as molluscicides against Physa acuta (48 h LC50 of 4.10 to 5.00 µg/mL) and Indoplanorbis exustus (48 h LC50 of 3.85 to 7.71 µg/mL) and with less toxicity to A. bouvieri.

show abstract

“…Penelitian ini bertujuan untuk meningkatkan persentase keberhasilan tumbuh dengan menganalisa pengaruh jumlah mata tunas batang atas dan tinggi batang bawah terhadap sambung pucuk jambu air (Syzygium Samarangense) taiwan super green. Jambu air taiwan super green bentuknya lonceng, panjang buah 3-5 cm, warna putih sampai hijau tua, banyak mengandung air dan manis (Mitra and Thingreingam Irenaeus, 2018).…”

Section: A Latar Belakangunclassified

PENGARUH JUMLAH MATA TUNAS BATANG ATAS DAN TINGGI BATANG BAWAH PADA SAMBUNG PUCUK TERHADAP PERSENTASE TUMBUH JAMBU AIR (Syzygium Samarangense)

et al. 2020

View full text Add to dashboard Cite

Water guava (Syzygium Samarangense) was a popular plant in Indonesia because it was fresh and sweet. The aim of this research was to analyze the effect of the number of shoots of the upper stems and height of the rootstock at the shoot graft on the percentage of growing water guava. The method used in this study was a completely randomized design, factor into one rootstock length, namely 10 cm, 15 cm, and 20 cm. and the second factor was the number of buds on the scion, namely 2, 3, and 4. The results showed that there was a significant interaction in the treatment combination of the number of 4 buds on the upper stem and the length of the rootstock 15 cm at 35 days after grafting affected the growth percentage and growth in the number of leaves and length of the scion.

show abstract

Guava cultivars of the world

Cited by 9 publications

References 11 publications

Landscape-Level Effects of Forest on Pollinators and Fruit Set of Guava (Psidium guajava L.) in Orchards across Southern Thailand

Landscape-Level Effects of Forest on Pollinators and Fruit Set of Guava (Psidium guajava L.) in Orchards across Southern Thailand

Chemical Composition, Larvicidal and Molluscicidal Activity of Essential Oils of Six Guava Cultivars Grown in Vietnam

PENGARUH JUMLAH MATA TUNAS BATANG ATAS DAN TINGGI BATANG BAWAH PADA SAMBUNG PUCUK TERHADAP PERSENTASE TUMBUH JAMBU AIR (Syzygium Samarangense)

Contact Info

Product

Resources

About