Toleransi Berbagai Varietas Tebu terhadap Penggenangan pada Fase Bibit Berdasarkan Karakter Morfologi dan Anatomi

Abstract

<p><em></em><em>Identification of Indonesia sugarcane varieties tolerant to waterlogging has not been done extensively. Information on varieties tolerant to waterlogging is required for seedling establishment in waterlogged areas. The purpose of this research was to identify the sugarcane varieties responses to several duration levels of waterlogging at seedling stage. The planting materials used were collection of Sugar Factory Semboro including VMC 76-16, BL, PS 862, PS 864, and PS 881. This research was arranged in randomized complete block design (RCBD) with two factors and three replications. The first factor was 5 varieties; the second factor was waterlogging treatment with four levels, i.e. without waterlogging, 2, 4, and 6 weeks of waterlogging in the bucket. The results showed different level of tolerance to water logging among the varities. PS 881 and VMC 76-16 varieties were the most tolerant to waterlogging supported by its ability to maintain plant height, root volume, root and shoot dry weight after been waterlogged for 6 weeks. These varieties were also able to establish aerenchyme tissue and increased the stomatal density. PS 862 was the least tolerant variety to waterlogging. <br /><br />Keywords: aerenchyme, morphology, stomatal density, waterlogging, water stress</em></p>

Cultivation of Water Spinach Using A Hydroponic Systems at Different AB Mix Concentrations

“…The concentration of AB Mix 1200 ppm is the recommendation as well as the best treatment for plant height yields. The parameter that shows growth is plant height which can be affected depending on internal and external factors (Avivi et al, 2018). According to (Julyana & Meidy, 2018) the nutritional content of AB Mix can support plant vegetative growth.…”

Respon Tanaman Cabai Rawit (Capsicum frutescens L.) Varietas Pelita F1 terhadap Penggenangan

“…Aktivitas mikrobia tanah sangat menentukan tingkat ketersediaan hara dan produktivitas tanah (Rachmawati dan Retnaningrum, 2013). Penggenangan menimbulkan beberapa respon pada tanaman, antara lain: layu, gugur daun, perkembangan aerenkim pada korteks akar, terbentuknya akar adventif, penurunan kandungan klorofil, penghambatan pertumbuhan tanaman, serta penurunan berat basah dan berat kering (Avivi et al, 2018). Tumbuhan merespon kondisi tergenang melalui penyesuaian dalam pertumbuhan, akumulasi dan alokasi biomassa, modifikasi anatomi serta morfologi pada akar, batang dan daun (Oliveira et al, 2015).…”

Pengaruh Durasi Penggenangan terhadap Pertumbuhan Vegetatif dan Waktu Berbunga Cabai Merah Keriting Capsicum annum (L.) Varietas Jacko

“…Toleransi tanaman terhadap genangan tergantung pada beberapa faktor yaitu: varietas, fase pertumbuhan tanaman dan durasi penggenangan (Susilawati et al, 2011). Cekaman genangan menyebabkan berbagai respon pada tanaman, misalnya: daun gugur, layu, perkembangan aerenkim pada korteks akar, terbentuknya akar adventif, penurunan kandungan pigmen fotosintesis, pertumbuhan tanaman terhambat, dan penurunan biomassa (Avivi et al, 2018).…”