The stability of high Zinc rice strain in different agro climate conditions

The production of crops, especially rice, is agitated due to climate change. The change in climate conditions causes the change of growing and harvesting season of rice. Zinc is a micronutrient that is needed by the body for its growth. The symptoms of zinc deficiency, both small and large, can cause stunted growth, eczema, hair loss, delayed sexual maturity and mental development disorders. This study aimed to determine agronomic performance stability and rice genotypes' yield with high-contain zinc and high yield in different agro-climate conditions. The test was carried out on two different agro-climates, namely, in Karang Village, Karang Pandan, Karanganyar (highlands) with a height of + 830 meters above sea level (masl) and in Plumbon Village, Mojolaban, Sukoharjo (lowlands) with a height of + 121 masl, from February to June 2017. A total of ten strains and two comparative varieties (Ciherang and Inpari 5 Merawu) were tested using a Randomized Block Design repeated four times on a 4m x 5m plot following a spacing of 25cm x 25cm and using transplanting techniques. The test results showed that the strain of IR 97477-115-1-CRB-0-SKI-1-SKI-0-2, IR 99284-15-3-2, IR 97477-115-1-CRB-0-SKI-3-SKI-0-2, B13884E-MR-22-3-1 and B13884-MR-29-1-1 had a relatively high-contain Zinc of broken rice in the two test sites. However, the strain of IR 97477-115-1-CRB-0-SKI-1-SKI-0-2 and IR 97477-115-1-CRB-0-SKI-3-SKI-0-2 had high stability of yield and Zinc content in different agro-climate conditions. So, it is prospective to provide new high yielding varieties.