Examinando por Materia "Agronomic performance"

Mostrando 1 - 2 de 2

Agronomic behavior of cowpea varieties in non-alluvial soils of the Peruvian Amazon
(Universidade Federal Rural da Amazônia, 2022-05-06) Angulo Villacorta, Carlos Darwin; Mathios Flores, Marco Antonio; Sangama Arirama, Misael Nemecio; Racchumi García, Alfredo
Grain legumes in tropical areas are of great importance as a food source, especially in rural communities. Little is known about their adaptability and behavior in non-alluvial soils of the Peruvian Amazon. Our objective was to assess the agronomic behavior of cowpea varieties in non-alluvial soils. The experiment was performed in completely randomized design with four treatments and four repetitions. Each experimental unit consisted of five rows of 6m length by 0.5m between plants and 1m between rows. The variables evaluated were: plant height (cm), number of pods, pod length (cm), number of graind per pod, grain length (mm), grain width (mm), and weight of 100 seeds (g). An analysis of variance and Tukey’ test at 5% probability were used to determine significant differences between treatments. Results showed significant differences between varieties according to the evaluated variables. The red cowpea presented significant differrences for the agronomic characteristics in plant height (62.83cm), grain length (8.68mm), and weight of 100 seeds (16.87g) in relation to the other varieties. The Chiclayo Olho Preto variety stood out only in grain width (5.46mm), and the Chiclayo Vermelho in pod length (19.58cm). The red cowpea has the potential to be cultivated preliminarily in larger-scale areas in the Yurimaguas district
Impact of interstock and rootstock on the growth and productivity of mango (Mangifera indica L.) cultivar Kent in the San Lorenzo valley, Peru
(MDPI, 2025-11-24) Casas Niño, Sebastián; Vilchez Navarro, Sandy Graciela; Morocho Romero, Henry Hoseph; Cárdenas Huamán, Gabriela; Nuñez Ticliahuanca, Esdwin Oberti; Montañez Artica, Ana Gabriela; Velarde Apaza, Leslie Diana; Ramirez Rojas, Max; Rojas Llanque, Juan Carlos; Lozano Isla, Flavio
Mango (Mangifera indica L.) is a tropical fruit tree characterized by vigorous growth and high fruit production, making it one of Peru's main export crops. However, its extensive vegetative development requires substantial space, limiting productivity per unit area. This study evaluated the effects of rootstock and interstock combinations on agronomic traits and fruit biometrics, highlighting the potential of interstocks to modulate tree vigor in mango orchards of Peru's dry forest region. A total of 216 trees were established using 'Chulucanas' and 'Chato' as rootstocks and 'Chulucanas,' 'Chato,' 'Irwin,' and 'Julie' as interstocks, apically grafted with the 'Kent' cultivar, with a spacing of 6.0 m × 6.0 m. Tree performance was assessed after 10 years during the 2017–2019 growing seasons in Piura, Peru, under a randomized complete block design (2 × 4 factorial). The combination of the 'Chulucanas' rootstock with 'Chulucanas' and 'Julie' interstocks reduced tree height by 10.94% and 11.70%, respectively, facilitating orchard management and potentially increasing planting density. Yield varied significantly among growing seasons, with a 15% reduction in 2017 attributed to El Niño–Southern Oscillation (ENSO)-related increases in temperature and rainfall that affected flowering and fruit set. These results underscore the importance of cultivar selection and climate-adaptive strategies to sustain mango productivity in regions prone to climatic variability.