Inheritance of hairiness and pod shattering, heritability and correlation studies in crosses between cultivated cowpea (Vigna unguiculata (L.) Walp.) and its wild (var. pubescens) relative Abstract Crosses were made between five cultivated cowpea varieties and a wild relative var. pubescens (as pollen parent) to study the inheritance of hairiness, pod shattering, as well as heritability and correlations among yield and yield related traits. F 1 plants exhibited dominance for both hairiness and pod shattering traits. Segregation in F 2 populations approximated 3:1 and 13:3 for hairy and non-hairy stem and 13:3 for hairy and non-hairy pod. The ratio of 13:3 and 15:1 ratios were observed among the F 2 populations for shattering and non-shattering pods. Broadsense heritability estimates showed that days to pod maturity averaged 77.93%, 100 seed weight 68.45%, seeds pod -1 69.76% and number of branches plant -1 had 62.54% (all high). Days to first flowering and pod length were moderate (57.31 and 54.29%, respectively). Number of pods plant -1 had low heritability estimates with an average of 39.0%. Correlations among number of pods plant -1 , seeds pod -1 , seeds plant -1 and seed yield plant -1 (0.485-0.568) were significantly positive. Correlations between seed pod -1 and seed plant -1 with number of pods plant -1 were 0.909 and 0.996, respectively. High broadsense heritability averaged 77.93% for days to pod maturity, 68.45% for 100 seed weight, 69.76% for seeds pod -1 and 62.54% for number of branches plant -1 . Days to flowering and pod length plant -1 had moderate estimates of 57.31 and 54.29%, respectively, while pods plant -1 was low (39.90%). Potential utilization of the hairiness trait and the implication of pod shattering in cowpea improvement were discussed. Positive correlations among these yield components, as well as high to moderate broadsense heritability estimates of the yield related traits can be utilized for direct and indirect selection to improve grain yield in cowpea.

No abstract

Sesamum (Sesamum indicum L.), is a very beneficial plant with manifold implementation in human life hence the identification of different species on the basis of morphological basis is indeed a need especially in less developed parts of the world. Morphometric studies of 12 accessions were carried out in order to find out characters which may be used for the delimitation of the accessions. Both quantitative and qualitative characteristics of the leaves, stems, flowers, stipule, node, fruit pods and growth type were studied and coded. Numerical analysis of these character data using cluster analysis average linkage, single linkage, complete linkage and centroid method delimit the 12 accessions into five cluster groups which conform to the results of the morphological analysis. The results of these morphological variability analyses may set the foundation to detect promising accessions for mapping out future breeding schemes and also will be helpful for other researchers working on other aspects such as medicinal or nutritive consumption of different accessions of this multipurpose crop.

Mangrove degradation has become a source of awareness, especially the government, such as the Indonesian government. This study aims to assess the effect of planting Rhizopora apiculata and Rhizopora stylosa on the growth and development of mangrove species diversity that grows naturally in Teluk Jor, East Lombok. Methods of data collection using the method of observation and transects. Furthermore, the first data were analyzed using descriptive statistics, and the second was the importance of value index analysis and Shannon-Wiener (H ’) analysis. In this study, five new species were found besides Rhizoproa apiculata and Rhizoproa stylosa. The new species are Avicennia marina, Ceriops tagal, Lumnitzera racemosa, Sonneratia alba, and Sonneratia casidaris. Furthermore, the highest index of importance was Sonneratia alba (tree 239.26, sapling 136.57, and seedling 66.89), and the lowest was Lumnitzera racemosa. Meanwhile, the diversity index is in the medium category, namely 1,451. In this case, the revegetation of two mangrove species in the study location significantly impacts mangrove vegetation growth and development. Therefore, the mangrove revegetation model in Teluk Jor can reference mangrove conservation in other areas.

No abstract