Physical characteristics and biochemical composition of seeds influenced by their position in different whorls of sunflower head-effect of storage

Abstract

The effect of storage on biochemical composition of seeds located in different whorls of sunflower head at maturity has been studied. The proportion of filled seeds, yield parameters such as weight of seeds, kernels and oil per whorl and dry weight of seeds and kernels decreased from the peripheral towards the central whorls. Dry matter, oil and starch contents decreased after 180 days of storage at room temperature. The content of total soluble sugars increased while that of reducing sugars decreased in peripheral whorls from first to ninth positions during storage for 180 days. The storage of seeds located in central whorls lowered the proportion of oleic acid with a corresponding increase in linoleic acid after 180 days. Thus, the seeds located in peripheral whorls were more productive and better for storage purposes than those in central whorls.

OIL PALM (Elaeis guineensis) SEED CHARACTERISTICS AND GERMINATION POTENTIAL AS INFLUENCED BY MATURITY STAGE AND FRUITLET POSITION ON A BUNCH

“…In contrast, higher length-to-width ratio of seeds at the apex section resulted in a more elongated morphology. The effect of space competition towards the seed morphological characteristics had been reported in other oilseed species, including sunflower (Gupta et al, 2009), mustard (Munshi and Kochar, 1994;Munshi and Kumari, 1994) and soybean seeds (Guleria et al, 2008). The seeds that were in the central region of the whorl showed the significantly lower size and dry weight in comparison to the outer region (Gupta et al, 2009).…”

“…The effect of space competition towards the seed morphological characteristics had been reported in other oilseed species, including sunflower (Gupta et al, 2009), mustard (Munshi and Kochar, 1994;Munshi and Kumari, 1994) and soybean seeds (Guleria et al, 2008). The seeds that were in the central region of the whorl showed the significantly lower size and dry weight in comparison to the outer region (Gupta et al, 2009). In the case of oil palm development, fruitlets located closer to the stalk will experience more spatial restriction due to the bunch position in between two fronds, thus reducing sunlight exposure (pigmentation), along with smaller, rounded fruitlets and seeds (Figure 4).…”

“…It was reported that between 13 and 15 weeks after anthesis; the oil palm seed endosperm cavity had fully solidified, with the presence of an approximately 3 mm cylindershaped embryo underneath the operculum region (Kok et al, 2013;. In the case of sunflower seed, seed position was reported to influence the maturity as it happened progressively from the outer region towards the central part of the whorl (Gupta et al, 2009). However, this is not the case for oil palm seeds.…”

Biochemical changes of kemiri sunan [Reutealis trisperma (Blanco) Airy Shaw] kernels at eight levels of fruit storage duration

“…The oil content of kemiri sunan kernel decreased from 53.3% in fresh condition and became 40.0% oil after 14 days of storage (1.31% day -1 ) (Figure 3). The reduction in fat content identical to oil also occurred in the storage process of sunflower [13], kambakam (Hopea ponga) [14], oats (Avena sativa) [15], pine [16], soybeans [17], peanuts [18], and cacao [19] seeds.…”

Perubahan Biokimia dan Indikator Vigor Benih Kakao pada Lima Taraf Lamanya Penyimpanan

“…Pada benih yang mengalami penyimpanan terjadi penurunan kandungan lemak dan kerusakan beberapa bagian sel (Araldi, Coelho, & Maraschin, 2016;Orhevba, Adelola, & Bamidele, 2018). Pada proses penyimpanan biji bunga matahari terjadi penurunan kandungan minyak karena menurunnya kandungan lemak pada biji (Gupta, Sharma, & Munshi, 2009). Penurunan kandungan lemak pada benih yang mengalami penyimpanan terjadi karena adanya proses hidrolisis menjadi asam lemak bebas sehingga jumlah asam lemak tersebut meningkat sejalan dengan semakin lamanya penyimpanan benih (Sukesh & Chandrashekar, 2011;Lampi et al, 2015;Liu et al, 2019).…”