Proline Content and Yield Components of Local Corn Cultivars from Kisar Island, Maluku, Indonesia

Abstract

Proline is one of amino acid that usually accumulates inside the plant cell when facing drought stress. The accumulation of proline can protect the plant cell from damage during drought. The aim of this research was to determine proline content and yield components of local corn cultivars from Kisar Island, Maluku, Indonesia. The field trial was organized using randomized block design with three replicates. Six local corn cultivars found in Kisar Island (Deep Yellow, Early Maturing Yellow, Red Blood, Rubby Brown Cob, Waxy, and White) were used as plant materials and a recommended tolerance variety (<em>Srikandi</em>) was taken as reference group. Proline content was determined using ninhydrin method. Yield components variables included cob weight (at harvest, after air dry, after oven dried, at 12% of water content), cob water content at harvest, cob length, cob diameter, number of seed row per cob, number of seed per cob, and cob yield at 12% of water content. Data collected was analysed with analysis of variance followed by Duncan multiple range test at the significant level 0.05 using Statistical Analysis System/SAS software version 9.0. The result shows that highest proline content and yield components (except for cob water content) was showed by the Deep Yellow cultivar. The lowest proline content was showed by Rubby Brown Cob cultivar. The lowest corn yield components was showed by Red Blood local cultivar. Deep Yellow cultivar can be proposed as superior drought tolerance variety, and can be recommended for further wide cultivation in Maluku province.

Genetic Variability of Local Corn Cultivars from Kisar Island Southwest Maluku Regency using Microsatellite Molecular Marker

“…Another result also reported by Sinay et al, (2015) about the proline content and yield of local corn cultivars on natural conditions in Kisar Island, which indicates that the Kuning Dalam cultivar has the highest proline content (in line with the results of greenhouse experiments, according to Sinay & Karuwal, 2014), as well as high yields such as the number of seeds per cob, the number of rows of seeds, the cob weight, the cob length, and the cob diameter.…”

Yield and Quality Stabilities of Waxy Maize Genotypes using Biplot Analysis

“…The number of ears per plant recorded for waxy and dent Corn genotypes were similar. The number of ears per plant for grain corn was reported between 1.12 and 1.28, for waxy Corn genotypes from 1 to 3 [40,43,44]. The number of ears per plant obtained in this experiment were lower than those reported by Souvandouane et al (2010), while in harmony with the values given in the previous studies.…”

The Response Of Maize (ZEA maysL.) Grain Yield to Water and Nitrogen Supply in An Eastern Croatian Environment

“…Furthermore, some negative correlations were found between leaf proline content and relative water content (RWC), then between leaf proline content and leaf greenness, 100 grain weight and yield of maize grain, as previously reported by Mansouri‐Far et al (). Sinay et al () studied the proline content and maize yield components. They found that maize hybrids with high proline content also have the highest cob weight before and after drying, cob length, diameter, number of seeds per cob and the yield.…”