There are many benefits of sugarcane (Saccharum officinarum L.) PENDAHULUANTanaman tebu (Saccharum officinarum L.) sebagai penghasil gula, mempunyai manfaat yang sangat besar bagi pemenuhan bahan pokok manusia. Konsumsi gula pasir terus meningkat tiap tahun, tetapi di pihak lain industri gula belum mampu memenuhi permintaan masyarakat. Hal ini terjadi karena peningkatan pendapatan penduduk dan bertambahnya industri pangan membutuhkan bahan baku berupa gula. Defisit gula Indonesia untuk memenuhi kebutuhan konsumsi gula nasional mulai dirasakan sejak tahun 1967. Defisit ini terus meningkat dan hanya bisa dipenuhi melalui impor gula.

Characterization of morphophysiology and oil yield of 10 patchouli genotypes (Pogostemon cablin Benth.) aims to test the morphology and physiology character of nine genotypes Aceh patchouli and one comparative clone (Lhokseumawe), obtain high yield oil clones (weight plant and essential oil content), and obtain genetic and phenotypic variabilities that can be used as a new genotype selection indicators. The research was conducted at Experimental Field and Plant Laboratory of the State Polytechnic of Lampung in April until November 2016. This research used Randomized Block Design (RBD) with 10 treatment levels and 3 replications.The LSI test results on the physiological character of the nine genotypes and one comparative clone showed that NPL 9 genotypes superior to the variables of the angle of petiole, chlorophyll content, leaf area, specific leaf area, and leaf area index. The NPL 9 genotypes resulted higher yield and rendement yields than other genotypes tested and one comparator, that was 2,36%. The character of stem production and rendement has a genetic variant value greater than the environmental variant. For genetic variability and phenotypic variability in the variables observed relatively uniform so that can not be used as an indicator of selection.   Keywords: Aceh patchouli, leaf character, selection indicator, variability of genotype, variability of phenotype

<p>Patchouli Aceh Lhokseumawe is a patchouli that has a high oil content.  However, the Lhokseumawe species have narrow plant genetic variation due to vegetative propagation. This study aims to analysis broad genetic variability and phenotypes, correlation between growth character and strong yield character to help selection in plant breeding.  The research was conducted at experimental field of the Politeknik Negeri Lampung in April until October 2018.  The research used Randomized Block Design (RBD) with 10 genotype and 3 replications.  Analysis of the data used is ANOVA, if significantly different followed by the LSI 5%, then using variability genotype and phenotype and t test. The result showed that NPL 1 had a better appearance than the Lhokseumawe (local) genotype in the LSI 5%.  Extensive genotype variability was found ini g/plant dry weight character and ton/ha dry terna production, broad phenotype variability was found in all observed characters.  High heritability is found in the characters of stem diameter, wet weight, dry weight, and production of dry ton/ha. Significantly positive phenotypic correlations that have high oil yield are characterized by the characteristics of dry weight, ton/ha dry cattle production, wet weight, and harvest index. Positive genotypic correlations were evident between growth and yield characters, namely the oil yield with leaf length, and leaf width.</p>

Cocoa (Theobroma cacao L.) is one of the estate crop commodities that is currently being developed because the cocoa plant is one of the export commodities that produce a lot of foreign exchange and has a role as high value sector besides oil and gas. Cocoa farming can increase the income of cocoa farmers, create and expand employment. This experiment used Randomized Block Design (RBD) which consisted of 4 treatments that was repeated 6 times (control, 1 tablet.polybag -1 , 2 tablet.polybag -1 , 3 tablet.polybag -1 ). This study was conducted to determine the best rate of compound fertilizer tablets for cocoa seedlings growth. The data obtained were analyzed by analysis of variance at 95% accuracy level. The results showed that there was a compound effect on the growth of cocoa seedlings to the variable of seed height, stem diameter, leaf number, leaf area, dry root weight, and total dry weight of stalk. Application of tablet compound fertilizer 1 tablet.polybag -1 gives the best results on the growth of cocoa seedlings.

Sugarcane is one of the main sugar-producing commodities in Indonesia. The one of the efforts to increase the production and yield of sugarcane can be done by fertilization using organic fertilizer and the use of improved varieties. The aim of this research are to get optimal rate of solid organic fertilizer, the best sugarcane variety, and interaction between solid organic fertilizer rate and variety on productivity of sugarcane. The study was conducted in December 2015 until December 2016 at Teaching Farm and Chemical Analysis Laboratory, State P olytechnic of Lampung. The research used Factorial Random Block Design method, with two factors. The first factor is the rate of solid organic fertilizer (Control, 1.000 kg.ha-1 , 1.500 kg.ha-1 , and 2.000 kg.ha-1), whereas the second factor is sugarcane varieties (GMP 3, GMP 19, and SS 57). The data of the research were analyzed by analysis of variance and if the result was significantly different then continued by using LSD test of 5% level. The results showed that there was interaction between the use of solid organic fertilizer 1000 kg.ha-1 and GMP 3 varieties on variable length of sugarcane stem. The productivity of sugarcane crops can be improved by the application of 1000 kg.ha-1 solid organic fertilizer which influences the variables of sugarcane quantity per lube and the number of sugarcane segments. The best variety that can be used to increase the productivity of sugarcane is GMP 3.