Abstract
This study aims to determine the heritability estimation of several peanut genotypes and to test tolerance to shade and drought stress. The research was carried out in 3 stages, the first stage from May to July 2019 in Sigerongan village, Lingsar District, West Lombok Regency, the second phase from August to October 2019 in Sigerongan village, Lingsar District, West Lombok Regency, and the third stage from July to September 2020 in Nyiurlembang village, Narmada District, West Lombok Regency, West Nusa Tenggara. The experimental design used in estimating heritability was a randomized block design (RAK) consisting of 20 peanut genotypes, namely G2T5, G3D6, G2D2, G5-UII, G300-II, G2T3, G11-UI, G3T4, G200-I, and G12. -UI, G2T1, G2D7, G3T10, G3D8, G7-UII, G7-UIII, G3T7, G16-UI, G7-UI and G2D3. Tolerance test of peanut genotypes to shade and drought stress used a Randomized Block Design (RBD) with a Split Plot Design. The results showed that the genetic diversity value of peanut genotypes against the tested parameters showed that all peanut genotypes were ineffective for further tests on the parameters of plant height, number of leaves and number of branches, while the parameters of the number of filled pods and dry weight of pods all genotypes showed moderate criteria which means that it is effective for further selection. Shade treatment was more influential than treatment without shade. The parameters of pod dry weight and number of filled pods showed a significant difference between the two. Genotypes sensitive to shade stress are G2T5, G3D6, G2T3, G200-I, G2T1, G2D7, G3D8, G7-UII, TAKAR, G3T7, mildly tolerant genotypes, namely G2D2, G5-UII, G300-II, G11-UI, G3T4, G12-UI, G3T10, G7-UI, and G2D3 and the shade tolerant is G16-UI. Plant genotypes that were sensitive (P) to drought stress were G2T5, G3D6, G2D2, G5-UII, G2T3, G11-UI, and G3T4. And the genotypes that are somewhat tolerant are G200-I and G12-UI. Meanwhile, the drought tolerant genotype was G300-II.
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