Limited‐transpiration rate and plant conductance in a diverse sweet corn population

Crop Science ◽  
2021 ◽  
Author(s):  
Nahid Jafarikouhini ◽  
Thomas R. Sinclair ◽  
Marcio F. R. Resende
Keyword(s):  
Transpiration Rate ◽  
Sweet Corn

Relationship between Photosynthetic Rate and Stomatal Conductance, Intercellular CO2 Concentration, Transpiration Rate, Vapour Pressure Deficit and Photosynthetically Active Radiation in Sweet Corn (Zea mays)

2020 ◽  
Vol 1 (2) ◽  
Author(s):  
Aidee Kamal Khamis ◽  
◽  
Umi Aisah Asli ◽  
Mohd Nadzreen Hidaya Sarjuni ◽  
Mohd Azlan Jalal ◽  
...  
Keyword(s):  
Zea Mays ◽  
Stomatal Conductance ◽  
Photosynthetic Rate ◽  
Transpiration Rate ◽  
Photosynthetically Active Radiation ◽  
Vapour Pressure ◽  
Sweet Corn ◽  
Vapour Pressure Deficit ◽  
Active Radiation ◽  
Development Stages

Sweet corn (Zea mays) is thethird-largest plantation crop in Malaysia. Since it is cultivated mainly for the corncobs, the reproductive and kernel development stages are critical for high yields. Photosynthesis measurement can be used as a major approach to improve photosynthetic efficiency, which can directly affect yield. Additionally, plant nutrient uptake also plays a major role in yield quantity and quality. Conventional fertilisation(chemical and/or organic) may result in excessive fertilizer input, which is detrimental to the environment. We therefore investigated the relationship between photosynthetic rate and stomatal conductance (gs), intercellular CO2concentration (Ci), transpiration rate and vapour pressure deficit based on leaf temperature (VpdL) and photosynthetically active radiation (PAR) during the growth and development stages of sweet corn. The seeds were subjected to the germination test to assess viability and were then planted at a distance of 10 cm both between plantsand rows (replicates). A total of eight subplots (2.2 m long, 60 cm wide, 30 cm high) were prepared in a randomized complete block design (RCBD). Leaf gas exchange measurements were carried out at days 10, 20, 30, 40, 50 and 60 at 9:00 a.m. in the morning and 4:00 p.m. in the evening. Three uniform plants were selected from each replicate and used for measurements throughout the experiment. At day 30, photosynthesis started to decline and was largely unaffected by the set environmental conditions, although stomatal conductance remained high. This can be attributed to the energy diversion from vegetative stages to reproductive stages. Therefore, fertilising practices should be synchronised to match the plant stages for more sustainable and efficient fertilisation and to obtain maximum yield.

Basis of limited-transpiration rate under elevated vapor pressure deficit and high temperature among sweet corn cultivars

2020 ◽  
Vol 179 ◽  
pp. 104205
Author(s):  
Nahid Jafarikouhini ◽  
Deepti Pradhan ◽  
Thomas R. Sinclair
Keyword(s):  
High Temperature ◽  
Vapor Pressure ◽  
Transpiration Rate ◽  
Vapor Pressure Deficit ◽  
Sweet Corn

TETRAPLOID SWEET CORN: SOURCE MATERIAL FOR EDIBLE SWEET CORN BREEDING IN THE RUSSIAN FEDERATION

2018 ◽  
Author(s):  
E.B. Khatefov ◽  
◽  
G.V. Matveeva ◽  
Keyword(s):  
Russian Federation ◽  
Sweet Corn ◽  
Source Material ◽  
Corn Breeding ◽  
The Russian Federation

Sweet Corn ToppingTrial

2007 ◽  
Author(s):  
Henry G. Taber ◽  
Vincent Lawson
Keyword(s):  
Sweet Corn

Sweet Corn Cultivar Trial

2010 ◽  
Author(s):  
Vincent Lawson
Keyword(s):  
Sweet Corn

Comparative response of field and sweet corn to various fertilizer treatments

1958 ◽  
Author(s):  
Clifton Clarence Acker
Keyword(s):  
Sweet Corn ◽  
Comparative Response

Doubled haploid production in maize under Sub-montane Himalayan conditions using R1-nj-based haploid inducer TAILP1

2020 ◽  
Vol 80 (03) ◽  
Author(s):  
R. K Khulbe ◽  
A. Pattanayak ◽  
Lakshmi Kant ◽  
G. S. Bisht ◽  
M. C. Pant ◽  
...  
Keyword(s):  
Doubled Haploid ◽  
Sweet Corn ◽  
Haploid Induction ◽  
Maize Breeding ◽  
Line Production ◽  
Haploid Inducer ◽  
Breeding Programmes ◽  
Source Populations ◽  
Developmental Phases

The use of in vivo haploid induction system makes the doubled haploid (DH) technology easier to adopt for the conventional maize breeders. However, despite having played an important role in the initial developmental phases of DH technology, Indian maize research has yet to harvest its benefits. Haploid Inducer Lines (HILs) developed by CIMMYT are being widely used in maize breeding programmes in many countries including India. There, however, is no published information on the efficiency of DH line production using CIMMYT HILs in Indian maize breeding programmes. In the present study, the efficiency of DH production using CIMMYT’s tropically adapted inducer line TAILP1 was investigated with eight source populations including two of sweet corn. The average haploid induction rate (HIR) of TAILP1 was 5.48% with a range of 2.01 to 10.03%. Efficiency of DH production ranged from 0.14 to 1.87% for different source populations with an average of 1.07%. The information generated will be useful for maize breeders intending to use DH technology for accelerated development of completely homozygous lines.

Comparison of Photosynthetic Characteristics of Leaves in Pop Corn, Sweet Corn, and Glutinous Corn during the Late Growing Period

2009 ◽  
Vol 35 (10) ◽  
pp. 1930-1935 ◽  
Author(s):  
Zhen-Peng ZUO ◽  
Qing-Quan SUN ◽  
Lu-Hao DONG ◽  
Jing WANG ◽  
Deng-Chao MA ◽  
...  
Keyword(s):  
Sweet Corn ◽  
Photosynthetic Characteristics ◽  
Growing Period
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