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Journal : Jurnal Penelitian Pendidikan IPA (JPPIPA)

Inbreeding Depression and Genetic Diversity of S1 Lines Corn Plants Under Drought Stress Conditionson Dry Land Sudika, I Wayan; Sutresna, I Wayan; Anugrahwati, Dwi Ratna; Suliartini, Ni Wayan Sri; Suana, I Wayan
Jurnal Penelitian Pendidikan IPA Vol 10 No 4 (2024): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i4.6206

Abstract

Selfing was carried out on the F2 population of corn plants and the S1 line was produced. Selfing is carried out to form pure lines in order to create hybrids. The aim of the research was to determine the magnitude of inbreeding depression, genetic diversity and heritability of leaf angle trait, yield and harvest age of the S1 line of corn plants under drought stress conditions in dry land. The experiment was carried out from March to June 2023 in Gumantar village, North Lombok district. The design used was a randomized block design, two replications. The number of treatments was 31, namely 30 S1 lines and an F2 population. Plantings are given heavy stress. Observed variables include flowering, growth, harvest age, yield components and yield. The level of inbreeding depression is based on the F2 population and is expressed as a percent. Genetic diversity is calculated based on the results of analysis of variance at a significance level of 5 percent. The results showed that inbreeding depression in leaf angle and harvest age of the S1 lines were relatively low; while the yield is classified as high. Broad categories of genetic diversity were obtained in the yield; while the leaf angle and harvest age are relatively narrow. Broad sense heritability was relatively high in the yield; while the leaf angle is classified as medium and the harvest age is relatively low. The selection of S1 lines should be based on yield, namely lines that have the same yield as the F2 population.
Genetic Parameters of Yield Character and Yield Components of Pigmented Rice Genotype Grown in Gogo A’yun, Amilia Qurota; Aryana, I Gusti Putu Muliarta; Sudika, I Wayan; Suliartini, Ni Wayan Sri; Fauzi, M. Taufik
Jurnal Penelitian Pendidikan IPA Vol 10 No 12 (2024): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i12.9270

Abstract

Increased public interest in red rice and black rice has triggered breeders to develop superior varieties that have high yields and are tolerant of the threat of drought. Genetic parameters are the basis needed for breeding to develop superior varieties. This research aims to examine the genetic parameters of pigmented rice genotypes grown upland. The experiment was carried out in June – September 2024 experimentally in the field using a gogo system, namely in Tampak Siring Village, Batukliang, Central Lombok, NTB. The design used was a Randomized Block Design (RAK) with 21 treatments, 10 red rice lines, 4 black rice lines, 4 parent lines, and 2 comparison varieties. Obtained 63 experimental units by repeating each treatment three times. The data collected was then analyzed using a one-way Analysis of Variance (ANOVA) test with a Randomized Block Design (RAK) model at a confidence level of 95% (α=5%), genetic diversity coefficient (KKG) formula, heritability and genotypic correlation. Referring to the analysis that has been carried out, the findings of the coefficient of genetic diversity and heritability of the number of full grains, weight of 100 grains, yield per plot of red rice and black rice lines are in the high category. The number of productive tillers, weight of 100 grains and weight of grain per hill had a significant positive correlation with the yield per plot, while the number of empty grain parameters had a significant negative correlation with the yield per plot.
Co-Authors A'yun, Amilia Qurota A. Farid .Hemon AA Sudharmawan, AA Alfionita, Usi Alhadawiah, Sabila Ali, Kesan Oktavian Alisa Daswita Wulandari Alvin, Zen Ambarwati, Zaskia Putri Andika Dhanan Jaya Anjar Pranggawan Azhari Anugrawati, Dwi Ratna AP, Julizar Auladia Arafah, Putri Nurul Ardini, Auliza Nesty Putri Aryana, I Gusti Putu Muiarta Aulia, Jumratul Ayu Ainurrahmah Azharuddin, Lalu Muhammad A’yun, Amilia Qurota Buludin, Buludin Chandraningsih, Ria Ayu Dini Sartika DIRVAMENA BOER, DIRVAMENA Dwi Ratna Anugrahwati Dwi Susilawati Egi Maulana Firdaus Fakhira, Nirma Laila Haeruman Haeruman I Gusti Putu Muliarta Aryana I Ketut Ngawit, I Ketut I WAYAN SUANA I Wayan Sudika I Wayan Sutresna Irmayani Ismayanti, Jumratul Khairina Khairina, Khairina La Ode Safuan Lestari Ujianto, Lestari Lestari, Dian Fathita Dwi M. Taufik Fauzi, M. Taufik Maisopa, Ira Micko Aliansyah MUHAMMAD TAUFIK Musthofa Salafy Nabila Azkiya Rosyida Wijayanti Nadia Dwi Septianti Nafiatun, Failman Nangurman, Royanissa Julia Rahmadewi Nihla Farida Noval, Ahmad Novita Hidayatun Nufus Putra, Muhammad Rizky Anugrah Putri, Dwi Noorma Rachman, Gina Juniarti Rahil, Arya Wardana Rahman, M. Tata Aulia Raihanun, Siti Ramadhan, Devi Aulia Rizki, Rama Sari, Firda Widya Saskia, Tia Savitri, Diana Ayu Sintanu, Muh. Andi Wirya Sudhanta, I Made Sudharmawan, A.A. Ketut Sudharmawan, A.A.K. Sudharmawan, Anak Agung Ketut Sudhramawan, Anak Agung Ketut Sukartono Sukartono Syahadatina, Rifkah Hashifah Teguh Wijayanto Utama, Dio Alif Wawan Setiawan Wayan Wangiyana Wideratih, Anggun Angling Yakop, Uyek Malik Yani, Irmayani Zamroni Alpian Muhtarom Zurriatun Toyyibah