RADIATION USE EFFICIENCY AND YIELD RESPONSE OF CHILLI PEPPER UNDER RAINFED AGRICULTURE IN AKURE, NIGERIA.

Öz

Growing pepper extensively under rain-fed condition is the oldest method of cultivation and in acceptance in most part of Nigeria with very high yields, but the setback is the non-adoption of technology and efficient Agricultural management practices, lack of information about the soil condition for cultivation, and radiation use efficiency of the crop. Hence, reliable data that could be followed for such practice especially in the southwestern Nigeria is not readily available. The aim of this research is to evaluate the Radiation use efficiency, and Yield of Chili pepper (Capsicum Annum) under rainfed agriculture. To achieve this objective, an experiment was carried out on three different chilli pepper plants transplanted with 40cm by 40cm spacing on plot A, 35 cm by 35 cm spacing on plot B, and 30cm by 30cm spacing on plot C. The soil analysis carried out before planting to determine properties which include pH, organic carbon, organic matter, and particle size. Evapotranspiration was determined based on rainfall, drainage, runoff, and change in soil moisture using soil and water balance method. The agronomic and yield parameters such as plant height, stem girth, leaf area index, photosynthetically active radiation (PAR), using meter rule, vernier caliper, and Ceptometer (PAR sensor). The radiation use efficiency was obtained based on the intercepted photosynthetic active radiation, leaf area index, and yield of the chilli pepper. The result shows that the soil pH was measured to be pH to be 6.0 and the soil classified as sandy loam which are good for chilli pepper cultivation. The Evapotranspiration was minimum in the 16th week after transplanting (0.37mm) and maximum in 11th week (41.18mm). In terms of yield and radiation use efficiency, the chilli pepper plants on plot A, plot B, and plot C produces total fresh fruits yield of 2450Kg/ha, 2100kg/ha, and 1768Kg/ha and 1.297b±0.1487g/MJ, 1.018ab±0.0316g/MJ, and 0.902a ±0.0624 g/MJ respectively with a significant difference between them (p<0.05). This result shows that, increase in yield of the crop resulted to increase in the radiation use efficiency. In addition, chilli pepper can be profitable to farmer under rainfed condition in Akure, Nigeria. The findings of this research can help farmers to increase their chilled pepper production by improving radiation use efficiency by optimizing their management practices, such as adjusting plant spacing and plant density.

Anahtar Kelimeler

• evapotranspiration
• radiation use efficiency
• growth yield
• rainfed agriculture
• chilli pepper

Destekleyen Kurum

Federal university of technology akure

Proje Numarası

1

Etik Beyan

I declare that i have complied with all applicable ethical guidelines in the design, conduct, and reporting of this study.

Teşekkür

Thanks to all people that supported me during the course of carrying out the research

Kaynakça

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