Characterization of rice flow of cross results (f1) environmental tolerance

Dwi Rahmawati, Hari Prasetyo, Putri Santika

Abstrak


Agricultural Development in Indonesia has begun to be directed to marginal land which is caused by the shrinkage of fertile land area for the sake of transportation and housing interests. However, the productivity of rice on marginal land experiences several obstacles due to low soil fertility, high salt concentration, highly saturated of Al and Fe in moderate concentration. The breeding program for rice aims to assemble superior varieties which possess high yield potential and are adaptive to various environmental stresses. The initial stage of assembling varieties is crossing, in order to combine desirable traits into a breeding population. The purpose of this study was to evaluate the characteristics of crossbred (F1) originated rice strain tolerant to environmental stresses, specifically soil with 0.484% NaCl content. The study was conducted from May to November 2018 in the greenhouse of the Seed Technology Laboratory, State Polytechnic of Jember. Randomized Block Design (RBD) was used for this study, consisting of five treatments, namely parents 1 (V1), parent 2 (V3), parent 3 (V7), crossing 1 (V3xV1) and crossing 2 (V3xV7). Each treatment was repeated three times. The qualitative variables observed included type of grain, grain color, grain shape, plant shape, loss, leaf face, flag leaf position, stem color, leaf color, leaf color, leaf tongue color, and leaf color. Quantitative variables observed were plant height, number of tillers, number of productive tillers, age of flowering, harvesting age, panicle length, number of shelled grains, percentage of pithy pithy grains, weight of 100 seeds, and weight of rice grains per clump. The results of observations of quantitative variables were statistically analyzed using Analysis of Variants (ANOVA). Satisfying genotypes with high potential will be developed to produce genotypes which have superiorities in fast flowering age, very early harvesting age, large number of tillers, large number of productive tillers and ideal plant height.


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Referensi


Alihamsyah, T. dan I. Ar-Riza. 2006. Teknologi pemanfaatan lahan rawa lebak. Hlm. 181−

dalam D.A. Suriadikarta, U. Kurnia, Mamat, H.S., W. Hartatik, dan D. Setyorini (Ed.).

Karakteristik dan Pengelolaan Lahan Rawa.

Balai Besar penelitian dan Pengembangan Sumberdaya Lahan Pertanian, Bogor. Amirhusin B.

Perakitan tanaman transgenic tahan hama. Jurnal Litbang Pertanian 23(1): 1-7

Cruz CV, Castilla N, Suwarno S, Hondrade E, Hondrade R, Paris T, Elazegui F. 2009. Rice

disease management in the uplands of Indonesia and the Philippines. In. Haefele SM , Ismail

AM (eds) Natural resource management for poverty reduction and environmental

sustainability in fragile ricebased systems. Limited Proceedings No 15. IRRI. Manila.

Philippines. Pp 10-18.

Ito, O., E. Ella, and N. Kawano. 1999. Physiological basis of submergence tolerance in rainfed

lowland rice ecosystem. Field Crops Res. 64: 75−90. Jennings PR, Coffman WR, Kaufman

HE. 1979. Rice improvement. IRRI, Los Banos, the Philippines.

Lubis E, Hermanasari R, Sunaryo, Santika A, Suparman E. 2008. Toleransi galur padi gogo

terhadap cekaman biotic. dalam Suprihatno B, Darajat AA, Suharto H, Toha HM, Setyono A,

Suprihanto, Yahya AS (eds) Prosiding Seminar Apresiasi Hasil Penelitian Padi Menunjang

P2BN Buku 2. Balai Besar Penelitian Tanaman Padi, Sukamandi.

Mackill, D.J., W.R. Coffman, and D.P. Garrity. 1996. Rainfed Lowland Rice Improvement.

International Rice Research Institute, Manila. 242 pp. [7] Soekartawi, 1993. Farming.

UI Press Jakarta

Mulyaningsih ES, Aswidinnoor H, Sopandie D, Ouwerkerk PBF, Loedin IHS. 2010.

Transformasi padi indica kultivar Batutegi dan Kasalath dengan gen regulator HD-Zip untuk

perakitan varietas toleran kekeringan. J Agron Indonesia 38 (1): 1-7.

Pane, H., Suwarno, B. Kustianto, K. Makarim, H. Suharto, dan H. Sembiring. 2007.

Pengelolaan Tanaman Terpadu (PTT) Padi Rawa Lebak. Balai Besar Penelitian Tanaman

Padi, Sukamandi.

Santoso, Nasution A, Toha HM, Suwarno. 2008. Diversifikasi kultivar padi untuk

pengendalian penyakit blas. Dalam Suprihatno B, Darajat AA, Suharto H, Toha HM, Setyono

A, Suprihanto, Yahya AS (eds) Prosiding Seminar Apresiasi Hasil Penelitian Padi Menunjang

P2BN Buku 1. Balai Besar Penelitian Tanaman Padi, Sukamandi..

Sasmita P. 2008. Skrining ex situ genotype padi gogo haploid ganda toleran intensitas cahaya

rendah. Jurnal Agricultura 19 (1): 75- 82.

Setter, T.L., M. Ellis, E.V. Laureles, E.S. Ella, D. Senadhira, S.B. Mishra, S. Sarkarung, and S.

Datta. 1997. Physiology and genetics of submergence tolerance in rice. Ann. Bot. 79:67−77..

Silitonga TS. 2004. Pengelolaan dan pemanfaatan plasma nutfah padi di Indonesia. Buletin

Plasma Nutfah 10 (2): 56-71

Singh RK, Redoña E, Refuerzo L. 2010. Varietal improvement for abiotic stress tolerance in

crop plants: Special reference to salinity in rice. In. Pareek A, Sopory SK, Bohnert HJ (eds)

Abiotic Stress Adaptation in Plants. Springer Netherlands.

Suhartini T. 2010. Keragaman karakter morfologis plasma nutfah spesies padi liar (Oryza

spp). Buletin Plasma Nutfah 16 (1): 17-28.

Sumarno. 1982. Pedoman pemuliaan kedelai. Lembaga Biologi Nasional-LIPI. Bogor.

Supartopo. 2006. Teknik persilangan padi (Oryza sativa L.) untuk perakitan varietas unggul

baru. Buletin Teknik Pertanian 11(2): 76-80.

Suprihatno B, Darajat AA, Satoto, Baehaki SE, Suprihanto, Setyono A, Indrasari SD, Wardana

IP, Sembiring H. 2010. Deskripsi Varietas Padi. Balai Besat Penelitian Tanaman Padi,

Sukamandi.

Suwarno, Lubis E, Hairmansis A, Santoso. 2009. Development of a package of 20 varieties for

blast management on upland rice. In. Wang GL, Valent B (eds). Advances in Genetics,

Genomics and Control of Rice Blast Disease. Springer Netherlands


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