Effect of Some Environmental Factors During Meiosis Stage on the Fertility of Grains in Rice Plant

Wada, S.; Kunihiro, Yasuhumi; Honma, Akira

doi:10.1626/jcs.41.340

Cited by 7 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This makes the results difficult to interpret, since environmental factors such as air temperature (Koike and Satake, 1987;Shimono et al, 2005) and solar radiation (Wada et al, 1972) could have affected cold tolerance. Because the growth stages on a given date differ between plants exposed to different T w s, this suggests that characteristics of the seedling environment other than T w during various growth stages, including booting, might differ under natural environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

Water temperatures during vegetative growth affect cold tolerance at the booting stage of rice under controlled environmental conditions

Matsumura

Suzuki

Shimono

2012

J. Agric. Meteorol.

View full text Add to dashboard Cite

We tested the effect of water temperature (T w ) during vegetative growth on the cold tolerance of rice under fully controlled environmental conditions. We grew seedlings of the rice cultivar 'Hayayuki' in a growth chamber, and at the four-leaf stage exposed some of the seedlings to T w of 18℃ (low T w treatment) for 14 days, and the rest to T w of 23℃ (control). At the booting stage, plants were subjected to low air temperature (12℃ for 4 or 5 days) in another growth chamber to induce spikelet sterility. Palea length, which is an indicator of the pollen developmental stage, increased linearly with increasing auricle distance, and there was no difference in this relationship between treatments. Spikelet sterility was significantly higher in plants exposed to low T w during vegetative growth. These results suggest that T w during vegetative growth affects the degree of physiological cold tolerance of rice during the booting stage.

show abstract

Section: Introductionmentioning

confidence: 99%

Water temperatures during vegetative growth affect cold tolerance at the booting stage of rice under controlled environmental conditions

Matsumura

Suzuki

Shimono

2012

J. Agric. Meteorol.

View full text Add to dashboard Cite

show abstract

“…Cold periods during the reproductive stage have the highest effect on final grain yield, and the most common symptom is poor grain filling rate (da Cruz et al, 2013). Low light intensity aggravates rice sterility caused by cold stress during the reproductive stage (Wada, Kunihiro & Honma, 1972). In this study, the grain filling rate was the most important factor explaining changes in grain yield throughout the 58 experiments.…”

Section: Discussionmentioning

confidence: 65%

Analysis of rice yield response to various cropping seasons to develop optimal cropping calendars in Mwea, Kenya

Samejima

Katsura

Kikuta

et al. 2020

Plant Production Science

View full text Add to dashboard Cite

Cropping calendar optimization contributes to an increase in rice yield. Information on the seasonal variation in grain yield and climate conditions is necessary to determine an appropriate cropping calendar. We sought to find the optimal cropping calendar in Mwea, Kenya, in a tropical highland in equatorial East Africa. We conducted a series of 58 experiments using a local popular rice variety, Basmati 370, between 2013 and 2016, using a secured water supply and adequate blast control, sowing every 15 days. The grain yield was 0-2 t ha −1 when the variety was sown between March and June. This poor grain yield was attributable to the low temperature and low solar radiation from May to September. In contrast, the grain yield was always more than 3 t ha −1 when the variety was sown between July and February. Sowing Basmati 370 between March and June is not recommended, because it may lead to a suboptimal yield due to cold stress. The current cropping calendar (July-December or August-January) is acceptable even under abundant year-round water supply, but sowing between October and February is a good alternative sowing period for single rice cropping. Rice production per year is expected to increase to >100% with the introduction of double cropping by adding cultivation from between January and February before the current cropping calendar. These findings serve as useful references for considering and determining the appropriate calendar options for single and double cropping of rice in tropical highlands in equatorial East Africa.

show abstract

Climatic Influence on Pollen Formation and Fertilization

Nishiyama¹

1984

Developments in Crop Science

View full text Add to dashboard Cite

Effect of Some Environmental Factors During Meiosis Stage on the Fertility of Grains in Rice Plant

Cited by 7 publications

References 1 publication

Water temperatures during vegetative growth affect cold tolerance at the booting stage of rice under controlled environmental conditions

Water temperatures during vegetative growth affect cold tolerance at the booting stage of rice under controlled environmental conditions

Analysis of rice yield response to various cropping seasons to develop optimal cropping calendars in Mwea, Kenya

Climatic Influence on Pollen Formation and Fertilization

Contact Info

Product

Resources

About