The Effect of Temperature and Growth Rate on Productive Tiller Numbers in Grain Sorghum (Sorghum Bicolor (L.) Moench) PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download The Effect of Temperature and Growth Rate on Productive Tiller Numbers in Grain Sorghum (Sorghum Bicolor (L.) Moench) PDF full book. Access full book title The Effect of Temperature and Growth Rate on Productive Tiller Numbers in Grain Sorghum (Sorghum Bicolor (L.) Moench) by Christopher P. Droge. Download full books in PDF and EPUB format.
Author: Christopher P. Droge
Publisher:
ISBN:
Category :
Languages : en
Pages : 98
Get Book Here
Book Description
Author: Christopher P. Droge
Publisher:
ISBN:
Category :
Languages : en
Pages : 98
Get Book Here
Book Description
Author: Cilas P. Camargo
Publisher:
ISBN:
Category : Sorghum
Languages : en
Pages : 150
Get Book Here
Book Description
Hybrid grain sorghum seeds were aged artifically for 0, 3, 5, 7, and 11 days at 42oC and 100% RH, wich produced high, medium, low and lowest vigor level. Among the various laboratory tests performed, standard germination and field mergence, were the least sensitive in discerning the physiological condition of the seed lots. The speed of germination more accurately differentiated the degree of deterioration of the seed lots and was closety correlated to yield. Adverse effect of planting low vigor seeds was found to be related to plant height, panicle exsertion, anthesis, tillering capacity, length of the panicle, and yield. Less vigours seeds produced plants which were not able to "catch up" to the vigorous ones. These slow growing plants were significantly inferior in panicle exsertion to those produced from more vigorous seeds. Seeds aged for 7 and 11 days had their process of exsertion delayed for about 2 and 3 days, respectively. Anthesis, conseguently, was also significantly retarded. Tillering capacity of plants produced from low vigor seeds was significantly reduced, as well as grain yield. Primary head yield was also significantly reduced about 14% for the more deteriorated seeds, and 12% for the mixed treatment, as compared to the control. Yield reductions of 9, 4, and 3% were also detected in seeds aged for 7, 5, and 3 days, respectively, as compared to the check. Seed moisture content generally increases as the vigor level decreased, indicating that the process of maturation was delayed as a (...).
Author: V. B. Ogunlela
Publisher:
ISBN:
Category :
Languages : en
Pages : 203
Get Book Here
Book Description
Two greenhouse and three field experiment were conducted to study the effects of elevated night temperatures on the yield and growth of a grain sorghum (Sorghum bicolor (L.) Moench) hybrid. The genotype used in these investigations was the 'RS 671' (Redlan x Tx 415), an open-pedigree temperate-adapted grain sorghum. The phenological growth phase during which temperature treatments were imposed was the panicle development (GS-2) period. Experiment I, II (greenhouse) and III (field) were designed to determine the response of grain sorghum to two elevated night temperatures and the growth stage during GS-2 period when the plant is most sensitive to elevated temperatures. Experiment IV and V (field) were conducted with the same objectives as those for Experiment I, II and III and also to determine the effects of artificial preconditioning on the plant's response to elevated night temperatures. Experiments I - Plants were exposed to 26.5 and 32 C night temperatures at 4-day durations commencing from florest differentiation through bloom. The two elevated night temperatures caused significant reduction in grain yield and yield components except seed size that was enhanced (12%) by the 32 C treatment. Approximately 19%, 21%, 24% and 20% reductions in panicle dry weight, grain yield per plant, number of seeds per panicle and grams of grain/GS-3 day/plant, respectively, were caused by the 32 C treatment. The 26,5 C treatment also caused reduction in these variables but to much lesser degrees. Numbers of days to (...).
Author: Herbert Arnold Bruns
Publisher:
ISBN:
Category :
Languages : en
Pages : 220
Get Book Here
Book Description
Author: Adama Coulibaly
Publisher:
ISBN:
Category :
Languages : en
Pages : 156
Get Book Here
Book Description
Author: Kansas Academy of Science
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 418
Get Book Here
Book Description
Author: H. R. Lafitte
Publisher:
ISBN:
Category :
Languages : en
Pages : 324
Get Book Here
Book Description
Author: Samuel Temitayo Jaiyesimi
Publisher:
ISBN:
Category : Sorghum
Languages : en
Pages : 100
Get Book Here
Book Description
Author: Herman Albert Praeger
Publisher:
ISBN:
Category : Sorghum
Languages : en
Pages : 100
Get Book Here
Book Description
Author: Bandiougou Diawara
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
In Kansas, productivity of grain sorghum [Sorghum bicolor (L.) Moench] is affected by weather conditions at planting and during pollination. Planting date management and selection of hybrid maturity group can help to avoid severe environmental stresses during these sensitive stages. The hypothesis of the study was that late May planting improves grain sorghum yield, growth and development compared with late June planting. The objectives of this research were to investigate the influence of planting dates on growth, development, and yield of different grain sorghum hybrids, and to determine the optimal planting date and hybrid combination for maximum biomass and grains production. Three sorghum hybrids (early, medium, and late maturing) were planted in late May and late June without irrigation in Kansas at Manhattan/Ashland Bottom Research Station, and Hutchinson in 2010; and at Manhattan/North Farm and Hutchinson in 2011. Data on leaf area index, dry matter production, harvest index, yield and yield components were collected. Grain yield and yield components were influenced by planting date depending on environmental conditions. At Manhattan (2010), greater grain yield, number of heads per plant, harvest index, and leaf-area were obtained with late-June planting compared with late May planting, while at Hutchinson (2010) greater yield was obtained with late May planting for all hybrids. The yield component most affected at Hutchinson was the number of kernels panicle-1 and plant density. Late-May planting was favorable for late maturing hybrid (P84G62) in all locations. However, the yield of early maturing hybrid (DKS 28-05) and medium maturing hybrid (DKS 37-07) was less affected by delayed planting. The effects of planting dates on growth, development, and yield of grain sorghum hybrids were found to be variable among hybrid maturity groups and locations.
