CD Tesis

Hubungan Sifat Perkembangan Biji Dan Komponen Hasil Untuk Kriteria Seleksi Hasil Tanaman Jagung ( Zea Mays L.) Pada Berbagai Dosis Pupuk Kalium

---

Corn (Zea mays L.) is one of the important staple food in Indonesia as carbohydrate and lipid sourse as well as raw material for various food industry. In addition to the source of human food, corn kernel is also utilized as the main component of animal feed industry. So in the last decades, the demand for corn in Indonesia increase from year to year. This research was conducted to determine the relationship between seed developmental characteristics and yield components as to be utilized as alternatives selection criteria to select maizer genotypes with high yielding under various rates of potassium fertilizer. This research was conducted at the experimental field of the Horticultural Seed Institute Pekanbaru, Jalan Kaharuddin Nasution Km 10, Pekanbaru using a group randomised design with 2 factors. Seven genotypes of maize with four doses of potassium fertilizer in a 350 cm x 200 cm experimental plot with three replications. The genotypes used were Bisi 228, Pertiwi 3, Bisi 2, Decoral, Bisi 18, Betras 4, and Srikandi. Potassium fertilizer rates included of 30 kg, 50 kg, 70 kg and 90 kg per ha, respectively. The characters observed were plant height, male flower emergence date, female flower emergence date, seed dry weight at 18 days after anthesis (DAP), seed dry weight 25 DAP, seed dry weight at harvest, seed dry accumulation rate, effective seed filling period, cob length, cob weight, number of seed rows per cob, number of seeds per cob, seed weight per cob, weight of 100 seeds and seed yield per m2. Analysis of variance was performed to the data by using SAS and further tested by honesty significantly real difference at 5% level. Component diversity, heritability, genetic correlation coefficient and response were calculated from data obtained in the field.
The results showed a wide variability among varieties for all observed characters, while potassium fertiliser rates only varied on effective seed filling time, number of seeds per cob, weight of seeds per cob and seed yield m2 but had no significant effect on other characters. Except for seed dry weight accumulation rate that has narrow genetic components of variance, all other characters were having wide genetic component of variance. Broad sense of heritability value was relatively high for all characters except for effective seed filling period and number of seeds per cob which has a low heritability value. Phenotypic correlation coefficients were significant positive between seed yield per m2 and plant height, seed dry weight 18 HSP, seed dry weight 25 HSP, seed dry weight at harvest, seed dry accumulation rate, cob length, cob dry weight, number of seeds per cob, seed weight per cob and 100 seed weight. Genetic correlation coefficients between seed yield per m2 were positively significant to plant height, seed dry weight at 25 DAP, seed dry weight at 25 DAP, seed dry weight at harvest, seed dry accumulation rate, number of seeds per cob and seed weight per cob. The direct selection response generally has a higher value than the indirect selection response Based on indirect response of selection, to obtain high yielding genotypes, one should use alternative selection criteria by selecting genotypes
with plant height, seed dry weight 25 HSP, seed dry weight at harvest, and seed weight per cob.
Keywords: Genetic variance, heritability, maize, pothassium fertilizer, selection response.

---

Ketersediaan

Informasi Detail

Judul Seri

-

No. Panggil

2010241678

Penerbit

Pekanbaru : Universitas Riau – Pascasarjana – Tesis Ilmu Pertanian., 2023

Deskripsi Fisik

-

Bahasa

Indonesia

ISBN/ISSN

-

Klasifikasi

2010241678

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

ILMU PERTANIAN

Info Detail Spesifik

-

Pernyataan Tanggungjawab

FATAH

Versi lain/terkait

Lampiran Berkas

Komentar

---

Anda harus masuk sebelum memberikan komentar