RESPON VARIETAS WIJEN (Sesamum indicum L.) SECARA TUMPANGSARI DENGAN JARAK KEPYAR (Ricinus communis L.) TERHADAP PERTUMBUHAN DAN HASIL

AMIK KRISMAWATI

Abstract


ABSTRAK
Penelitian ini dilaksanakan di Kebun Percobaan Balai Penelitian
Tanaman Tembakau dan Serat, Karangploso, Malang, mulai bulan Mei
sampai dengan Oktober 2001. Penelitian bertujuan untuk memperoleh
varietas wijen yang sesuai pada sistem tumpangsari dengan tanaman jarak
kepyar. Rancangan percobaan yang digunakan adalah rancangan petak
berlajur dengan tiga ulangan. Perlakuan tumpangsari terdiri dari dua
faktor. Faktor pertama yaitu varietas tanaman jarak kepyar Asembagus
81 (Asb 81) dan Asembagus 104 (Asb 104). Faktor kedua yaitu
varietas wijen Sumberrejo 1 (Sbr 1) dan Sumberrejo 2 (Sbr 2). Pada
setiap ulangan juga ditanam varietas monokulturnya. Ukuran petak 6 m
x 6 m, jarak tanam untuk tanaman jarak kepyar 2 m x 2 m (satu
tanaman per lubang) dan varietas wijen 0,5 m x 0,25 m (satu tanaman
per lubang). Hasil penelitian menunjukkan bahwa tanaman wijen varietas
Sumberrejo 1 dengan tanaman jarak kepyar varietas Asembagus 104
memberikan hasil 632,55 gram biji wijen per petak dan 637,63 biji jarak
per petak. Parameter total hasil relatif (RYT) sistem tumpangsari wijen
dengan tanaman jarak kepyar lebih besar dari satu ( > 1) yaitu antara 1,687
sampai dengan 1,787, sehingga sistem tumpangsari tersebut efisien dalam
memanfaatkan lahan.
Kata kunci : Wijen, Sesamum indicum L., jarak kepyar, Ricinus communis
L., tumpangsari, pertumbuhan, hasil, Jawa Timur
ABSTRACT
Response of sesamum variety as intercrops with castor on
their growth and yield
The experiment was conducted in the Experimental Garden of the
Indonesian Tobacco and Fibre Crops Research Institute in Malang, from
May to October 2001. The objective of the study was to find out the
variety of sesame which is suitable for intercropping with castor. A strip
plot design was used with three replications. The factorial treatment
consisted of two factors. The first factor was castor varieties (Asembagus
81 and Asembagus 104). The second factor was sesame varieties
(Sumberrejo 1 and Sumberrejo 2). In each replication, castor and sesame
varieties were planted as monocultures. The plot size was 6 m x 6 m,
castor and sesame plant spacing were 2 m x 2 m and 0,50 m x 0,25 m
respectively. The results showed that the intercropping of sesame
Sumbererjo 1 variety and castor Asembagus 104 variety produced 632,55
gram sesame seed per plot and 637,63 gram seed castor per plot. The
highest relative total yield on intercropping castor and sesame was
obtained by Asembagus 104 and Sumberrejo 1 at 1,787 and the lowest
relative total yield was obtained by Asembagus 104 and Sumberrejo 2 at
1,687. RYT value of the intercropping system was more than one which is
considered as efficient in land use.
Key words: Sesame, Sesamum indicum L., castor, Ricinus communis L.,
intercropping, growth, yield, East Java.

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DOI: http://dx.doi.org/10.21082/jlittri.v14n1.2008.7-15

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