Indeks Toleran dan Evaluasi Karakter  Seleksi Jagung Hibrida terhadap Pemupukan N Rendah

Herawati, Herawati; Efendi, Roy; Azrai, Muhammad

doi:10.21082/jpptp.v2n3.2018.p173-180

Cited by 6 publications

(5 citation statements)

References 20 publications

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“…Plant height can maximize the absorption of sunlight to maximize seed production. This is in accordance with Herawati and Efendi (2017), which states that higher plants can absorb more sunlight, resulting in a higher photosynthesis rate, leading to increment seed yield and translocation for seed formation in the generative phase. While the positive correlation between the character of the 1000grain weight with productivity is found in the research of Mohsin, Ahmad, Farooq, and Ullah (2014), that stating character the 1000grain weight have significant correlation with productivity.…”

Section: Correlation Between Characterssupporting

confidence: 90%

Response and growth of some maize varieties (Zea mays L.) at various KNO3 concentrations

Diarjo

Ala

Badaruddin³

et al. 2022

JAC

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This study aimed to determine the interaction effects of several maize varieties and KNO3 concentrations on maize production. The research was carried out from December 2020 to April 2021 at the Indonesian Cereal Research Institute Facility, Bajeng District, Gowa Regency, South Sulawesi (5°18'21.5"S, 119°28'38.6"E). The study was designed using a split-plot experimental design, where the main plot was variety (V) which consisted of 4 varieties V1 (NASA-29), V2 (JH-37), V3 (BISI-2), and V4 (Pioner P-35). The subplots were KNO3 (K) concentration which consisted of 4 concentrations, namely Control (K0), 2.5 g.L–1 (K1), 5 g.L–1 (K2), and 7.5 g.L–1 (K3). Observational data were processed using ANOVA, and if there was a significant difference in the treatment, it was further tested with a 0.05 LSD follow-up test. The results showed that the JH-37 variety gave the best response, such as plant height, cob length, and production. The 7.5 g.L–1 KNO3 concentration gave the highest effect on all parameters of maize production; The interaction between the JH-37 variety with 7.5 g.L–1 KNO3 concentration gave the highest maize production; Parameters that have a positive correlation with maize productivity are expressed by plant height and weight of 1000 seeds.

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Section: Correlation Between Characterssupporting

confidence: 90%

Response and growth of some maize varieties (Zea mays L.) at various KNO3 concentrations

Diarjo

Ala

Badaruddin³

et al. 2022

JAC

View full text Add to dashboard Cite

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“…Jagung hibrida akan memiliki hasil tinggi pada kondisi N tinggi namun akan mengalami penurunan hasil jika berada pada kondisi marginal (Duan, 2018). Ajala et al (2019) dan Herawati et al (2018) menyebutkan bahwa kehilangan hasil jagung pada kondisi kekurangan N dapat berkisar antara 10-50% bahkan bisa mencapai 67,13% pada tanaman yang rentan.…”

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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“…Dalam kondisi N rendah, jagung hibrida berdaya hasil rendah (Efendi et al 2012). Penurunan hasil jagung akibat N rendah berkisar antara 10-50% (Ajala et al 2019), bahkan mencapai 67,13% (Herawati et al 2018). Perakitan varietas jagung hibrida baru dengan daya hasil dan efisiensi penggunaan N tinggi merupakan salah satu solusi untuk mengatasi permasalahan tersebut (Syafruddin et al 2013).…”

Section: Pendahuluanunclassified

Parameter Genetik dan Daya Gabung Hasil dan Komponen Hasil Jagung pada Tiga Taraf Pemupukan N

Priyanto

Efendi

Azrai

2021

j. penelit. pertan. tanam. pangan

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Low maize yields due to low nitrogen generally occur on marginal land. Maize development in Indonesia is directed at marginal land due to limited fertile land, especially in other lands in Indonesia besides Java. Therefore, the assembly of low N tolerant maize varieties plays an important role in increasing production on marginal land. The improvement of low N tolerant hybrid maize was required. Information on the combining ability of inbred lines was important in the hybrid maize breeding program. This research aims were to determine genetic parameters, general combining ability, specific combining ability of maize lines and at three levels of N fertilization. This research was conducted at the Bajeng Experimental farm South Sulawesi from August to November 2019. The research was arranged in a split-plot design with two replications. The main plots were three nitrogen levels i.e. 0 kg N/ ha, 100 kg N/ha, 200 kg N/ha and the subplots were 36 hybrids formed from a half diallel cross and its parents. The results showed that compared to yield at 200 kg N/ha, yield at 100 kg N/ha and 0 kg N/ha reduced 18,80% and 38,69% respectively. ear number, ear weight, shelling percentage and number of seeds per row were controlled by non-additive genes, while moisture content, 100 seeds weight, ear length and number of rows per ear were controlled by additives gene. Lines AVLN 118-7 and AVLN 83-2 have good GCA for yield grain overall levels of fertilization. Crosses AVLN 83-2/AVLN 124-4, AVLN 83-2/AVLN 32-8, and AVLN 122-2/ AVLN 124-9 have the good combining ability under both low and high N conditions. They could be used to develop low N tolerant varieties.

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Indeks Toleran dan Evaluasi Karakter Seleksi Jagung Hibrida terhadap Pemupukan N Rendah

Cited by 6 publications

References 20 publications

Response and growth of some maize varieties (Zea mays L.) at various KNO3 concentrations

Response and growth of some maize varieties (Zea mays L.) at various KNO3 concentrations

Efektifitas penggunaan beberapa indeks toleransi untuk menyeleksi jagung toleran nitrogen rendah

Parameter Genetik dan Daya Gabung Hasil dan Komponen Hasil Jagung pada Tiga Taraf Pemupukan N

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