Productivity and Quality of Fodder Oats (<i>Avena sativa</i> L.) as influenced by Sowing Time, Cutting Schedules and Nitrogen Levels

Goyal

CEREAL RESEARCH COMMUNICATIONS

et al. 2021

This study provides insight into variation in nutritional composition and yield with staggered planting and growth stages. These variations offer the opportunity for the production of better quality forage oat. In the current investigation, the effect of staggered planting dates (Oct 9, Oct 24, Nov 13, Nov 26, Dec 11 and Dec 26) and growth stages (40, 50 and 60 DAS) was studied through field experiment during Rabi season (2018-19 and 2019-20) in oat. Two genotypes with differential growth potential were used, OL-10 being fast-growing with high regeneration potential and OL-11 the slow-growing single-cut variety. The optimum (Oct 24) and sub-optimum (Oct 9 and Nov 13) planting dates were characterized by higher dry matter (DM), ether extract (EE), acid detergent fibre (ADF), neutral detergent fibre (NDF) and chlorophyll content in comparison with late planting (Nov 26, Dec 11 and Dec 26). However, crude protein (CP), non-protein nitrogen (NPN) and in vitro dry matter digestibility (IVDMD) increased with delay in planting time. Meanwhile, the quality attributes except DM, ADF and NDF got declined with advancing maturity of vegetative fractions of plant. The multivariate regression model depicted 88.2% association between quality traits and digestibility. Yield and yield attributes got declined with delay in planting time during both the studied years. Overall, staggered planting and stage of harvest resulted in modifications in the nutritive value and crop yield in forage oat genotypes. OL-10 had higher yield potential and better nutritive value as compared to OL-11 genotype.

Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Interactive effect of planting dates and development stages on digestibility, qualitative traits and yield of forage oat (Avena sativa L.) genotypes

Goyal

CEREAL RESEARCH COMMUNICATIONS

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

“…The reason of increase the fat percentage when increasing nitrogen concentration may be attributed to the important role of nitrogen in accelerating the process of respiration, through which most carbohydrates are converted into crude fat. These results are in line with the results of [13]. The results in Table (4) show that the cutting after 40 days of planting was significantly superiority and achieved a highest fat percentage 3.24% compared to cutting after 50 days of planting which achieved a lowest 2.66% with non-significant difference with cutting after 60 days of planting (2.70%).…”

Section: Fat Percentage (%)supporting

confidence: 86%

Response of Forage Quality Characters of Oats (Avena sativa L.) to Nitrogen Spraying, Cutting Stages and Cultivars

Yahya,

Abood

2023

A field experiment was conducted during winter season of 2020-2021 in the Al-Hamdhyia research station, College of Agriculture, Anbar Univercity to study the response of forage quality characters of oats (Avena sativa L.) to nitrogen spraying, cutting stages and cultivars. A split-split plots arrangement according to the RCBD at three replications was used. The main plots included spraying of four concentrations of nitrogen (0, 2, 4 and 6 g N L-1), while the sub-split plots included three cutting stages (40, 50 and 60 days after planting, whereas the sub plots included three oats cultivars ((Shifaa, Carlop and Hamel). The results showed that the spraying of nitrogen at a 6 g N L-1 was significantly superiority and gave the highest percentages of protein, ash and fat (12.99, 26.56, 22.45 and 3.12%) respectively. The cutting stages also significantly affected the studied characters, the cutting after 40 days of planting achieved the highest percentages of protein, ash and fat (13.02, 23.59 and 3.24 %) respectively, while the cutting after 60 days of planting achieved the highest percentages of carbohydrates and fiber (27.71 and 30.39%) respectively. Also, the oats cultivars was significantly differed in the most of the studied characters, as the Carlop cultivar excelled in the percentages of fiber (29.23%), whereas the Shifaa cultivar excelled in the carbohydrates percentage of (26.30%), while the Hamel cultivar excelled in the ash percentage (21.23%). The di and triple interactions between studied factors had significant effects on the studied traits.

IOP Conf. Ser.: Earth Environ. Sci.

“…The increase in dry forage yield when mowing was delayed could be attributed to the superiority of the same mowing date in the green forage yield (Table 1). This result agrees with [11]. The above results show that yield increased when the mowing date was delayed, and the planting distance between lines was reduced.…”

supporting

confidence: 90%

Response of Forage Yield and Quality of Oats (Avena sativa L.) to Planting Distances and Mowing Dates

Abood,

Alkaisy,

Neamah

et al. 2023

A field experiment was carried out during the winter season of 2020-2021 in the Habbaniyah district, west of Baghdad, to study the response of forage yield and quality of oats Avena sativa L. var. Shifaa to planting distances and mowing dates. A split plots arrangement according to the RCBD at three replications was used. The main plots included planting distances, while the subplots included the mowing dates. The study’s results indicated that the planting distance of 25 cm between lines was significantly superior in the green forage yield and fiber percentage 12.00 ton ha-1 and 37.61%, respectively. In comparison, the planting distance of 20 cm between lines was significantly superior in the protein percentage 12.34%. As for the mowing dates, the mowing after 70 days was selected substantially in the forage yield and fiber percentage. The mowing after 50 days was significantly superior in protein percentage 12.28%. The interaction between studied factors significantly affected the most studied traits.