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Effect of photoperiod and growth media on yield and antioxidant properties of wheatgrass juice of Indian wheat varieties.

ABSTRACT: The effect of photoperiod durations (16 h light:8 h dark vs 22 h light:2 h dark) and different doses (0.5x and 1x) of Murashige and Skoog medium on the yield and antioxidant characteristics of wheatgrass from hard, medium-hard and soft wheat varieties were analyzed. The average wheatgrass height and wheatgrass yield increased in MS media both under normal photoperiod as well as in water under prolonged photoperiod. An increase in total phenolic content (TPC) and ferric reducing antioxidant power (FRAP) of wheatgrass in different strengths of MS media under normal photoperiod was observed. Whereas, increase in protein content, chlorophyll (Chl) a, Chl b, total Chl, average TPC, DPPH inhibition and FRAP values were observed for wheatgrass of different varieties grown in water under prolonged photoperiod. The accumulation of polypeptides (PPs) of 92 kDa, 33 kDa, 23 kDa, 14 kDa, 12 kDa, and 10 kDa for wheatgrass shoot powder of different varieties was affected by strength of MS media and duration of photoperiod. On the contrary, wheatgrass juice powder showed major changes in the accumulation of PPs 33 kDa and 23 kDa PPs under varied strength of MS media and prolonged photoperiod.

SUBMITTER: Virdi AS

PROVIDER: S-EPMC8249507 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature

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Effect of photoperiod and growth media on yield and antioxidant properties of wheatgrass juice of Indian wheat varieties.

Virdi Amardeep Singh AS Singh Narpinder N Bains Kirat Khushwinder KK Kaur Amritpal A

Journal of food science and technology 20200923 8

The effect of photoperiod durations (16 h light:8 h dark vs 22 h light:2 h dark) and different doses (0.5x and 1x) of Murashige and Skoog medium on the yield and antioxidant characteristics of wheatgrass from hard, medium-hard and soft wheat varieties were analyzed. The average wheatgrass height and wheatgrass yield increased in MS media both under normal photoperiod as well as in water under prolonged photoperiod. An increase in total phenolic content (TPC) and ferric reducing antioxidant power ...[more]

PMID: 34294964

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Project description:A field experiment with wheat was conducted at Pusa (25.98°N, 85.67°E, 52 m amsl), Bihar (middle Gangetic plains of India), to assess the responses of phenology, yield attributes, and yield to growing season temperature and heat stress. For this purpose, wheat was planted on five dates (viz., 15 November, 25 November, 5 December, 15 December, and 25 December) for three consecutive years (viz., 2014-2015, 2015-2016, and 2016-2017) with three prominent cultivars of the region (viz., RAU-3711, HD-2824, and HD-2733). Five dates of sowing represent different wheat-growing micro-environments as imposed by varying sowing dates encompassing the entire sowing window. The study observed the significant effect of sowing dates on phenophase duration. In general, with progress in the date of sowing, tiller initiation was delayed, while the reverse trend was observed for later growth phases. Sowing environments significantly influenced the number of effective tillers m-2. Average numbers of effective tillers (ET) m-2 for the wheat sown during 15-25 November were almost 11.6% higher than those of the 25 December sown crop. Grain filling duration (GFD) showed a declining trend with the advancement of sowing dates due to increased thermal load on the crop during the reproductive period. 15 November planted crop exhibited the highest GFD (47 days), which was shortened significantly beyond 25 November, signifying agrometeorological non-suitability of wheat sowing beyond this window. Wheat sown on 25 November recorded the highest grain yield (3.21 Mg ha-1), 48.61% higher than the 25 December sown crop due to the congenial thermal regime. In this context, we have identified optimal and sub-optimal conditions to escape heat stress for higher wheat productivity. Moreover, the sum of deviation of temperature from optimum thresholds, computed for sensitive growth phases (50% flowering to physiological maturity), helped us to identify heat stress and its impact on wheat. Genotype-by-environment (GGE) biplot analysis revealed that RAU-3711 was found to be the most stable cultivar. A decrease in the yield of wheat by 4.9% to 12.0%, sown during November, and 33.8% to 42.4%, sown during December, is predicted in 2050-51 and 2080-81, respectively, under RCP 4.5.

Dataset Information

Effect of photoperiod and growth media on yield and antioxidant properties of wheatgrass juice of Indian wheat varieties.

Publications

Effect of photoperiod and growth media on yield and antioxidant properties of wheatgrass juice of Indian wheat varieties.

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