Limited farm labor in swampy area encourage farmers to apply direct seeding method, however land conditions with excess water caused un-germinated seeds. The purpose of this research was to obtain seed treatments to increase seedling establishment in anaerobic germination conditions. The first experiment was laboratory trial arranged in a factorial design with two factors namely seed treatments and rice varieties. A total of 32 treatments along with control were tested on three rice varieties: Inpara 9 (swampy variety), IR 42 (AG-susceptible), and KHO (Anaerobic Germination/AG tolerant). The results showed that treated seeds show faster germination and has higher germination index. The second experiment was greenhouse trial to confirm the effectiveness of 12 best seed treatments from the first experiment. Water managements were conducted in anaerobic and aerobic conditions. Seeds on anaerobic conditions decreased seedling establishment, shoot length, root length, shoot dry weight, and root dry weight for 44.6, 28.1, 34.4, 80.7, and 74.2%, respectively. KHO showed better performance in anaerobic conditions. Treated seeds had better seedling establishment and seed growth in anaerobic conditions, except for hardening Trichoderma treatment. The best three seed treatments in anaerobic conditions were hardening H2O, thermo treatment 80°C+NaOCl, and hardening ascorbic acid.

Melon (Cucumis melo L.) is one of popular fruit commodities in Indonesia, because of its sweet and fresh taste, and very high of nutritional content. Appropriate dose of Ab Mix on growth and yield is essential in melon cultivation with a hydroponic system. The study was conducted to determine the best AB Mix dose levels for growth and yield of three melon varieties. A Split Plot Design was used which arranged using a randomized block design with 2 factors. The first factor as the main plot was 2 levels of AB Mix doses (N), and the second factor as the subplot was 3 varieties (V) of melon. The results showed that the effect of AB Mix doses on the growth and yield of three melon varieties were not significantly different between the two treatments (1600 ppm and 1800 ppm). The Golden Aroma variety gave different response at the age of two weeks after planting in term of plant height. Whereas the AB Mix dose level influenced the number of leaves only at the age of two weeks after planting. In conclusion, 1600 ppm of AB Mix dose was sufficiently meet the nutrition level required by the melon in hydroponic drip irrigation system.

The purpose of this research was to know whether kirinyuh leaf water extract could improve the growth of mekongga varieties rice paddy under the condition of drought stress.This research was conducted at Botanical Laboratory of Biology Department Faculty of Mathematics and Natural Sciences University of Lampung from September to October 2017. The research was conducted in a 3 x 2 factorial experiment. Factor A was Polyethylene glicol 6000 with 3 levels of concentration: 0% w / v, 15% w / v, and 30% w / v. Factor B was kirinyuh leaf water extract with 2 concentration levels: 0% w / v and 2% w / v. As parameters were the mean of shoots length, fresh weight, dry weight, and the relative water content of rice seedling. Levene test, analysis of vaiance, and Tukey test were performed at 5% significant level. The results showed that water extract of kirinyuh leaves had no significant effect on shoot length, fresh weight, and dry weight of rice seedling, but influenced the relatife water content of rice seedling. From the result of research it was concluded that kirinyuh leaf water extract can not improve the growth of Mekongga rice paddy varieties at drougth stress condition