Daya Gabung Inbrida Jagung Toleran Cekaman Kekeringan dan Nitrogen Rendah pada Pembentukan Varietas Hibrida

Efendi, Roy; Takdir, M Andi; Azrai, Muhammad

doi:10.21082/jpptp.v1n2.2017.p83-96

Cited by 11 publications

(9 citation statements)

References 25 publications

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“…The low national corn production is influenced by several factors, including the use of suboptimal lands, which are often hit by drought [2]. The availability of dry land in Indonesia is 68% [3], and some are located in the medium land, the land utilizes rainfed irrigation sources while corn plants per production cycle normally require between 400 -600 mm of water [4] and still the lack of dryland adaptive varieties [5] have been released in Indonesia. Therefore, hybrid corn that is adaptive to the midlands and drought tolerant and has highyielding potential is an alternative to increase maize productivity in Indonesia.…”

Section: Introductionmentioning

confidence: 99%

Genetic variability, heritability, and correlation of hybrids maize agronomy characters adaptive to dry land, medium plains

Syahruddin,

Suwardi

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The selection of hybrid maize plants that adapt to dry land in the medium plains is very important considering the very widely available such land in Indonesia, so the existence of adaptive varieties is needed. Information on agronomic characters of adaptive hybrid maize is the basic information for character selection to make the breeding program more effective. The study aims to determine the genetic variability, heritability, and correlation of hybrid maize agronomic characters tested in dry land of medium plains. The genetic material used 22 maize hybrids, arranged in randomized block design with 3 replications. The experiment was carried out in Polewali Mandar Regency, West Sulawesi from June to September 2021. The results showed the characters that were strongly influenced by the environment were ear position height, stem diameter, male and female flowering time, and shelling percentage. The characters of stem diameter, male and female flowering time, and shelling percentage can be used for selection characters in the advanced generations. The characters that had significantly positively correlated with yield characters were plant height, leaf width, ear diameter, harvested ear weight, and weight of 1000 kernels, while the character that had negatively correlated with yield was kernel moisture content.

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Section: Introductionmentioning

confidence: 99%

Genetic variability, heritability, and correlation of hybrids maize agronomy characters adaptive to dry land, medium plains

Syahruddin,

Suwardi

2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Musim kemarau panjang dapat mengganggu kegiatan budidaya tomat dan menyebabkan tanaman tidak mampu tumbuh dengan baik. Menurut Efendi & Azrai (2010), masalah utama pada lahan pertanaman adalah terjadinya kekeringan pada tanaman. Faktor penyebab terjadinya cekaman tersebut adalah kurangnya pasokan air akibat perubahan iklim yang tidak menentu hingga menurunnya ketersediaan air tanah karena persaingan penggunaan air tanah untuk pertanian dengan industri.…”

Section: Pendahuluanunclassified

Respons Tiga Varietas Tomat (Lycopersicum esculentum Mill.) Akibat Cekaman Kekeringan

Mukarromah,

Santoso,

Moeljani

2024

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Drought is one of the factors in tomato (Lycopersicum esculentu Mill.) crop failure which is often found in Indonesia. Planting drought-resistant varieties is a solution to increase the productivity of tomato to meet market demand. The research was carried out in the Kumendung Hamlet Plastic House, Ngembung Village, Cerme District, Gresik Regency at an altitude of 4 meters above sea level with an average temperature of around 25º - 34º C. This research was conducted using a factorial of Completely Randomized Design (CRD). The first factor is application water volume with 3 levels, namely: C0 = water content 100% field capacity (control); C1 = water content 75% field capacity; C2 = water content 50% field capacity. The second factor is tomato varieties with 3 levels, namely: V1 = Servo Variety; V2 = Tymoti variety; V3 = Tantyna variety. The research data were analyzed using Analysis of Variance (ANOVA), then the Least Significant Difference (LSD) test was carried out at a test level of 5%. The results showed that it was no interaction between the application of water volume and the tomato varieties. Applying water 828,75 ml or 75% of field capacity and using the Tymoti tomato variety gave the best results in terms of number of leaves, number of flowers, number of fruit, and fruit weight per plant. The Tymoti tomato variety gave the shortest flowering period. Key Words: Drought, tomatoes, varieties, watering

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“…Nitrogen merupakan hara makro yang paling banyak dibutuhkan oleh tanaman. Kebutuhan hara N pada jagung untuk memperoleh hasil 11-14 t ha -1 N berkisar 180-250 kg N ha -1 (Efendi et al 2017dan Syafruddin, 2015 bahkan 93% berat biji yang dihasilkan jagung dipengaruhi oleh dosis N yang diberikan (Nugroho, 2015). Disebabkan besarnya peran hara N terhadap produksi jagung maka petani umumnya memberikan pupuk urea sebagai sumber hara N dalam jumlah yang lebih besar dibanding hara lainnya (Syafruddin et al, 2013).…”

Section: Pendahuluanunclassified

Efektifitas penggunaan beberapa indeks toleransi untuk menyeleksi jagung toleran nitrogen rendah

Priyanto¹,

Efendi²,

Muliadi³

2022

J. AGRO

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Keakuratan dalam seleksi jagung hibrida toleran N rendah dapat ditingkatkan dengan penggunaan beberapa indeks seleksi secara sekaligus. Penelitian ini bertujuan mengidentifikasi indeks toleransi yang sesuai untuk seleksi jagung hibrida toleran N rendah serta memilih jagung hibrida toleran N rendah. Penelitian dilaksanakan di IP2TP Bajeng Balai Penelitian Tanaman Serealia Kabupaten Gowa bulan April sampai dengan September 2021. Sebanyak 8 hibrida dan 2 varietas pembanding ditanam pada rancangan tersarang tiga ulangan. Genotipe tersarang pada taraf pupuk N. Taraf pupuk N meliputi 100 kg N ha-1 dan 200 kg N ha-1. Indeks toleransi meliputi Tolerance (TOL), Mean Productivity (MP), Geometric Mean Productivity (GMP), Harmonic Mean (HM), Stress Tolerant Index (STI), Relative Tolerant Index (RTI), Stress Susceptibility Index (SSI), Yield Index (YI), Stress Relative Index (SI), Yield Stability Index (YSI), Stress Susceptibility Percentage Index (SSPI). Hasil penelitian menunjukkan bahwa indeks toleransi menunjukkan bahwa MP, GMP, HM dan STI merupakan yang paling sesuai untuk menyeleksi hibrida toleran N rendah. Hibrida HLN 02 dan HLN 06 merupakan hibrida yang toleran terhadap N rendah, sedangkan Hibrida HLN 03 dan HLN 07 dan ADV 777 termasuk peka. Berdasarkan hasil biji pada pemupukan 100 kg N ha-1 dan 200 kg N ha-1 dan indeks toleransi serta analisis kluster.ABSTRACTLow N tolerant hybrid maize selection accuracy can be increased by using several selection indices simultaneously. This study's objective was to identify the proper tolerance index for low N tolerant hybrid maize selection and to determine the low N tolerant hybrid maize. The research was conducted at IP2TP Bajeng Indonesian Cereal Crop Institute Gowa Regency from April to September 2021. Eight promising hybrid and two check varieties were planted in a nested design with three replications. The genotypes were nested at the N fertilizer level. The N fertilizer levels were 100 kg N ha-1 and 200 kg N ha-1. The tolerance index used was Tolerance (TOL), Mean Productivity (MP), Geometric Mean Productivity (GMP), Harmonic Mean (HM), Stress Tolerant Index (STI), Relative Tolerant Index (RTI), Stress Susceptibility Index (SSI), Yield Index (YI), Stress Relative Index (SI), Yield Stability Index (YSI), Stress Susceptibility Percentage Index (SSPI). The results showed that tolerance index MP, GMP, HM, and STI were the most suitable for electing low N tolerant hybrids maize. hybrids HLN 02 and HLN 06 were low N tolerant; meanwhile, HLN 03 and HLN 07 and ADV 777 were susceptible based on yields at 100 kg N ha-1 and 200 kg N ha-1 fertilization, tolerant indexes, and clustering.

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Daya Gabung Inbrida Jagung Toleran Cekaman Kekeringan dan Nitrogen Rendah pada Pembentukan Varietas Hibrida

Abstract: ABSTRACT

Cited by 11 publications

References 25 publications

Genetic variability, heritability, and correlation of hybrids maize agronomy characters adaptive to dry land, medium plains

Genetic variability, heritability, and correlation of hybrids maize agronomy characters adaptive to dry land, medium plains

Respons Tiga Varietas Tomat (Lycopersicum esculentum Mill.) Akibat Cekaman Kekeringan

Efektifitas penggunaan beberapa indeks toleransi untuk menyeleksi jagung toleran nitrogen rendah

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