PENDAHULUANDeteriorasi benih merupakan proses yang tidak dapat dihindari selama benih dalam masa penyimpanan baik penyimpanan secara terbuka maupun kondisi terkontrol. Faktor suhu dan kelembaban sangat mempengaruhi kecepatan kemunduran benih pada penyimpanan secara terbuka (Ghassemi-Golezani et al., 2010), sedangkan pada penyimpanan secara terkontrol yang kondisi suhu, kadar air serta kelembaban ruangan cenderung konstan, maka proses deteriorasi benih berhubungan dengan perubahan biokimia di dalam benih selama periode simpan. Perilaku Biokimia Benih Kedelai Selama Penyimpanan dalam Kondisi Terkontrol

One of the efforts to anticipate the impact of climate change on rice is the introduction of new high yielding and early maturing varieties tolerant drought. The aim of this study was to examine the growth performance and potential production of several early maturing and drought tolerant rice varieties in lowland on dry season. The assessment was conducted in Majalengka regency from June to September 2019. Five varieties used were Inpari 39, Cakrabuana, Inpago 11, Rindang 1, and Luhur 1 with through application of Controlled Aerobic Rice based on Organic matter Technology (CARO). Variables observed including plant height and number of productive tillers, number of grains per panicle, percent of empty grains, and also weight of 1,000 grains. The observations results showed that five tested rice varieties showed good adaptation responses to drought stress with average productivity of around 6 to 7 t ha−1. Cakrabuana was potentially to be developed in dry season under drought stress due to its high yield potential and early maturing (85 days after planting). The early maturing and high yielding varieties in the dry season in lowland can be used as an alternative technology to increase the cropping index (CI) and rice production.

Rainfed lowland is a potential physical resource for soybean development to increase the cropping index. The study aimed to optimize the rainfed paddy fields by introducing a package which has several recommended technologies in a limited amount of water condition. The study was conducted in Sanca Village, Gantar District, Indramayu Regency from July to September 2019. The treatment was a recommended technologies package in soybean farming. The observed variables were plant height and number of branches in three growth phases, namely vegetative phase, flowering phase and maturing phase. The yield components were also observed. The collected data were analyzed by using t-test with technical cultivation of farmers’ ways as a comparison. The results showed that the recommended technology package for soybean cultivation in the dry season produced higher soybean productivity (1.25 t ha−1). Cultivation of soybeans in the dry season in rainfed lowland areas must pay attention to the suitability of varieties and availability of water sources in an effort to achieve optimal production.

The performance of hybrid maize cultivation technology in Indonesia. Maize is the most important crop after rice. Beside as a food, maize has other functions as forage and raw material of bioethanol. In Indonesia, the need of maize increases every year. To fulfil the need, an appropriate breakthrough that can increase maize production significantly,  is required. The  most  popular  breakthrough  is the  use  of hybrid variety, that is the first generation derived from two or more pure lines crossing. This review discusses the results of hybrid maize researchs and assessments at various types of agroecosystem. Maize hybrid variety planting accompanied by the appropriate location specific technologies could increase maize productivity significantly.