The impact of micro climate on flowers development in Siam orange plant (Citrus nobilis var. microcarpa. L)

Abstract

Constraints that can affect the occurrence of induction and flowering development of Siamese citrus plants are endogenous and exogenous factors. Exogenous factors include microclimate. Microclimate, especially extreme humidity, is one of the factors that can determine the physiological process of flowering of Siamese citrus plants. Siam oranges require 6-9 wet months (rainy season) and 3-6 dry months (dry) and need enough water especially in July-August (dry season). The purpose of this study was to examine and determine the role of microclimate on the phenology of flowering Siam oranges in Badung, Bangli and Gianyar. The assessment method was observed in citrus centers from 2014 to August 2018. The results showed high rainfall occurring throughout 2014, a flowering phenology disorder that had previously flowered Siamese citrus plants 1 to 3 times a year to 4 to 6 times a year. The number of flowering periods is not supported by the number of flowers formed because the flower miscarried before the fruit-set formed, the height of the deciduous flower is supported by the large number of leaves formed at the location of the garden whose height is less than 1000 meters above sea level. Location of citrus orchards which applies an integrated management system to. New potentials are good for cultivating conjoined oranges, namely dry land or dry fields and sandy soil when compared to oranges planted in faddy fields.

Pengaruh Parameter Iklim terhadap Produktivitas Jeruk Siam di Kabupaten Sambas

“…Penurunan produktivitas pada tanaman jeruk siam tersebut bisa disebabkan karena banyak faktor termasuk diantaranya adalah penurunan harga jeruk siam di pasar dan masih kurang dukungan pemerintah terhadap petani jeruk siam itu sendiri (Suyanto & Irianti, 2011;Wulandari et al, 2014) Peningkatan curah hujan yang terdapat di Kabupaten Sambas tersebut mengakibatkan terjadinya penurunan hasil produktivitas buah jeruk siam. Akibat dari curah hujan yang cukup tinggi mengakibatkan banyaknya tanaman jeruk siam mengalami kebanjiran, gagalnya dalam pemberian pupuk dan bahkan sampai pada pembusukan akar tanaman jeruk siam itu sendiri (Maesyaroh et al, 2018;Soepono, 2001;Sulistiawati et al, 2021). Curah hujan yang cukup tinggi di sepanjang tahun 2020 mengakibatkan lama penyinaran matahari menjadi sangat rendah, sehingga buah jeruk siam rata-rata tidak tumbuh dengan baik "songpi".…”

“…Tanah yang subur dan baik memerlukan sinar matahari yang cukup (Sawicki et al, 2015). Tanaman jeruk merupakan salah satu dari jenis tanaman buah yang memerlukan tanaman sinar matahari yang penuh, agar kondisi buah yang dihasilkan dapat memberikan rasa yang segar dan manis (Hasan, 2010;Sulistiawati et al, 2021). Apabila buah jeruk siam tersebut terhalang oleh tumbuhan lain maka dapat berdampak pada hasil produksi jeruk itu sendiri, karena intensitas sinar matahari dibutuhkan langsung oleh tanaman jeruk siam.…”

Data Analytics on the Effect of Climate Change to the Production of Fruit Plants during 2014-2020 in Malang District

“…Orange plants require ideal rainfall for growth between 1000-3000 mm per year. In addition, the optimal temperature for orange plant growth is between 20-30°C, and the required humidity is between 70-80% [8,12]. Papaya plants can thrive in areas with an altitude of 700-1000 meters above sea level.…”

“…Meanwhile, the lowest yields occur in the second quarter (3,748 tons in 2019 and 3,762 tons in 2020) with an average rainfall of 145.17 mm per month, average temperature of 24.63 °C, and the average humidity is 80.62%. For mango commodities, the highest yields often occur in the fourth quarter (12,985 tons in 2019 and 13,075 tons in 2020) with an average rainfall of 225.78 mm per month, an average air temperature of 25.24 °C, and the average air humidity is 78.87%. Meanwhile, the lowest yields often occur in the second quarter (1,348 tons in 2019 and 1,357 tons in 2020) with an average rainfall of 145.17 mm per month, an average air temperature of 24.63 °C, and the average air humidity is 80.62%.…”