VARIETAL IMPROVEMENT OF WHEAT UNDER RAINFED CONDITIONS IN MID-WESTERN TERAI OF NEPAL

2017 ◽  
Vol 6 (4) ◽  
pp. 15-19
Author(s):  
Subarna Sharma ◽  
Keyword(s):  
Rainfed Conditions ◽  
Varietal Improvement

Effect of Biochar on Maize Yield and Yield Components in Rainfed Conditions

2018 ◽  
Author(s):  
Zafar Ullah ◽  
Muhammad Shahbaz Akmal ◽  
Muzaffar Ahmed ◽  
Mohammed Ali ◽  
Aurangzaib Zaib Khan ◽  
...  
Keyword(s):  
Yield Components ◽  
Maize Yield ◽  
Yield And Yield Components ◽  
Rainfed Conditions

scholarly journals Paclobutrazol Improves Sesame Yield by Increasing Dry Matter Accumulation and Reducing Seed Shattering Under Rainfed Conditions

2021 ◽  
Author(s):  
Muhammad Zeeshan Mehmood ◽  
Ghulam Qadir ◽  
Obaid Afzal ◽  
Atta Mohi Ud Din ◽  
Muhammad Ali Raza ◽  
...  
Keyword(s):  
Leaf Area ◽  
Seed Production ◽  
Seed Yield ◽  
Dry Matter ◽  
Biomass Accumulation ◽  
Total Biomass ◽  
Dry Matter Accumulation ◽  
Seed Shattering ◽  
Rainfed Conditions ◽  
Leaf Greenness

AbstractSeveral biotic and abiotic stresses significantly decrease the biomass accumulation and seed yield of sesame crops under rainfed areas. However, plant growth regulators (such as Paclobutrazol) can improve the total dry matter and seed production of the sesame crop. The effects of the paclobutrazol application on dry matter accumulation and seed yield had not been studied before in sesame under rainfed conditions. Therefore, a two-year field study during 2018 and 2019 was conducted with key objectives to assess the impacts of paclobutrazol on leaf greenness, leaf area, total dry matter production and partitioning, seed shattering, and seed yield of sesame. Two sesame cultivars (TS-5 and TS-3) were treated with four paclobutrazol concentrations (P0 = Control, P1 = 100 mg L−1, P2 = 200 mg L−1, P3 = 300 mg L−1). The experiment was executed in RCBD-factorial design with three replications. Compared with P0, treatment P3 improved the leaf greenness of sesame by 17%, 38%, and 60% at 45, 85, and 125 days after sowing, respectively. However, P3 treatment decreased the leaf area of sesame by 14% and 20% at 45 and 85 days after sowing than P0, respectively. Compared with P0, treatment P3 increased the leaf area by 46% at 125 days after sowing. On average, treatment P3 also improved the total biomass production by 21% and partitioning in roots, stems, leaves, capsules, and seeds by 23%, 19%, 23%, 22%, and 40%, respectively, in the whole growing seasons as compared to P0. Moreover, under P3 treatment, sesame attained the highest seed yield and lowest seed shattering by 27% and 30%, respectively, compared to P0. This study indicated that by applying the paclobutrazol concentration at the rate of 300 mg L−1 in sesame, the leaf greenness, leaf areas, biomass accumulation, partitioning, seed yield, and shatter resistance could be improved. Thus, the optimum paclobutrazol level could enhance the dry matter accumulation and seed production capacity of sesame by decreasing shattering losses under rainfed conditions.

scholarly journals Correction to: The contribution of the international Rice Genebank to varietal improvement and crop productivity in Eastern India

Food Security ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 239-239
Author(s):  
Donald Villanueva ◽  
Melinda Smale ◽  
Nelissa Jamora ◽  
Grace Lee Capilit ◽  
Ruaraidh Sackville Hamilton
Keyword(s):  
Crop Productivity ◽  
Eastern India ◽  
Link Type ◽  
Varietal Improvement

A Correction to this paper has been published: 10.1007/s12571-020-01135-7

scholarly journals The Effects of Plant Breeders’ Rights on Wheat Productivity and Varietal Improvement in South African Agriculture

2019 ◽  
Vol 11 (12) ◽  
pp. 3378
Author(s):  
Charity Ruramai Nhemachena ◽  
Johann F. Kirsten ◽  
Binganidzo Muchara
Keyword(s):  
Intellectual Property ◽  
South African ◽  
Wheat Variety ◽  
Wheat Varieties ◽  
Whole Wheat ◽  
New Varieties ◽  
Varietal Improvement ◽  
African Agriculture ◽  
Protection Index ◽  
Plant Breeders Rights

The strengthening of the intellectual property rights (IPRs) for plant varieties provide incentives for breeding companies to invest more resources in plant breeding. The main objective of this paper was to analyze the effects of strengthening the wheat variety intellectual protection on wheat productivity and the release of new varieties. The strength of IPR systems was measured using an intellectual property (IP) protection index, and plant breeders’ rights (PBRs) granted for wheat varieties. The empirical analyses were based on correlation and multiple regression analyses. The results showed that strengthening IPR systems in South Africa contribute to improving wheat productivity and increasing the number of wheat varieties released. Furthermore, although the robust coefficients of the other IPR variables are positive, they are statistically insignificant for all scenarios. There is a need for more incentives beyond granting PBRs and strengthening of IPR systems to be provided in the whole wheat sector to stimulate increased investments and the release of new varieties.

Legume–barley intercropping stimulates soil N supply and crop yield in the succeeding durum wheat in a rotation under rainfed conditions

2015 ◽  
Vol 89 ◽  
pp. 150-161 ◽  
Author(s):  
Antonella Scalise ◽  
Demetrio Tortorella ◽  
Aurelio Pristeri ◽  
Beatrix Petrovičová ◽  
Antonio Gelsomino ◽  
...  
Keyword(s):  
Durum Wheat ◽  
Crop Yield ◽  
Soil N ◽  
N Supply ◽  
Rainfed Conditions
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