Duration of stigmatic receptivity in maize

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August undefined, 2024

WebMaize Production - arc.agric.za Web1975 ). From an agricultural perspective, stigmatic receptivity has a direct effect on the length of the effective pollination pe-riod and, consequently, on fruit yield (reviewed in Sanzol and Herrero, 2001 ). The length of stigmatic receptivity differs among species and can be affected by environmental conditions ( Hedhly et al., 2003 , 2005 ).

Stigma receptivity and seed set in cassava - AGRIS

WebThe period of stigma receptivity was long (14 d), and the sequential exposure and senescence of stigmatic papillae occurred gradually and in a basipetal direction. Pollen … Webthe time required for dehiscence of anther ranged from 8 - 20 minutes in testers of rice. The results showed that time of anthesis in both the CMS lines and testers of rice since … phoenix ibew local

American Journal of Botany - Botanical Society of America

WebJun 27, 2024 · Therefore, different studies were carried out to determine the duration of stigma receptivity and the rate of pollen tube growth. Inflorescences were covered for up to 3 days after the first opening of the bracts (e.g. anthesis day) to prevent open pollination. WebThe period of stigma receptivity was long (14 d), and the sequential exposure and senescence of stigmatic papillae occurred gradually and in a basipetal direction. Pollen … WebDec 30, 2015 · In general at the time of anthesis, the stigma is receptive and may lose for one 2 or several days.2-4Successful pollination period is determined with age of ovule, … ttm game auction

The effect of temperature on stigmatic receptivity in sweet …

Evaluation of pollen viability, stigma receptivity, and

WebAnswer: HE SILK of a pistillate flower of maize is a unique combination of stigmatic and stylar tissue …. 1,2). The effect of a water deficit this pattern of kernel set varied with the … WebStigmatic receptivity. During the first 4 days that followed anthesis, stigmatic receptivity averaged 84% and sharply de-creased to nil after 7 days. When data from stigmatic receptivity were plotted with those of fruit set, the two curves had a close fit (Fig. 1) (r2 = 0.99). Discussion The EPP in kiwifruit appears to be 4 days and appears to be ttmgothicsbWebStigma receptivity of Platanthera chlorantha was examined in a laboratory experiment. Flowers were hand-pollinated at bud stage and at different intervals between the beginning and the 14th day of anthesis. Afterwards, pollen … phoenix ia

"WebFeb 1, 2011 · Stigmatic receptivity was evaluated in growth chambers at three RHs (95%, 80% and 72%) and two different temperatures (25°C and 30°C). The duration of … " - Duration of stigmatic receptivity in maize

Duration of stigmatic receptivity in maize

Full article: Stigmatic receptivity determines the seed set …

WebStaging begins at emergence (VE), and each new leaf with a fully developed leaf collar is called stage V (n). Vegetative leaf staging for corn plants ends when the corn develops a tassel (VT); once the plant has silks visible outside of the husks it has reached the first reproductive stage (R1). Vegetative and reproductive stages are determined ... Web2. timing of stigmatic receptivity of maize Answer: HE SILK of a pistillate flower of maize is a unique combination of stigmatic and stylar tissue … 1,2). The effect of a water …

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WebThus, stigmatic receptivity could be an important factor limiting pear flower receptivity (Sanzol et al., 2003; Figure 2) [54] . Fruit set in kiwifruit after hand pollination was high, … WebFeb 1, 2011 · From an agricultural perspective, stigmatic receptivity has a direct effect on the length of the effective pollination period and, consequently, on fruit yield (reviewed in 50 ). The length of stigmatic receptivity differs among species and can be affected by environmental conditions ( 20, 5 ).

WebThough the pollen tubes reached the embryosacs in 24 h in OP-4, it took about 48 h in OP-7. The presence of stigma receptivity in the morning hours could advantageously be … WebFeb 4, 2024 · Climate change can decrease the global maize productivity and grain quality. Maize crop requires an optimal temperature for better harvest productivity. A suboptimal …

WebMay 1, 2024 · Stigmatic receptivity was determined with the benzidine – hydrogen peroxide method (Dafni, 1992). The stigmas of 10 flowers per cultivar were immersed in … WebFeb 1, 1995 · Stigmatic receptivity is high at anthesis and lasts for the next 4 d. However, it drastically decreases 5 d after anthesis and it is nil 2 d later. The pattern of stigmatic receptivity closely fits that of papillar integrity, indicating that stigmatic receptivity relies on this integrity. Since papillar integrity can easily be evaluated in ...

WebEvaluation of the duration of stigmatic receptivity—Two days before an-thesis, ﬂowers at the balloon stage were marked in the tree. Flowers were emasculated by removing the petals and anthers with tweezers to avoid insect visits and self-pollination (Free, 1964). Flowers were divided in six batches

Webfemale side and on ﬂower receptivity. In this work, the effect of temperature has been evaluated on stigmatic receptivity of sweet cherry in vivo, in the laboratory, and in … ttmgothicbWebIn general at the time of anthesis, the stigma is receptive and may lose for one 2 or several days. 2-4 Successful pollination period is determined with age of ovule, pistil morphology and receptivity of stigma. 5 The proteins present at the pollen, stigma and extra cellular matrix of pistil play an important role in pollen-pistil communication. ttmgothicr phoenix iataWebIn this way, while the duration of stigmatic receptivity for each carpel is rather short, the flower has an expanded receptive period. This asynchronous period of receptivity for the different stigmas of a single flower is discussed as a strategy that could serve to maximize pollination resources under unreliable pollination conditions. phoenixiaWebStigmatic receptivity began 1 d after anthesis, with the greatest pollen germination rates and longest pollen tubes obtained 2 d after anthesis. Nectar secretion commenced with pollen... ttmg truckee caWebPremise of the study: Factors affecting floral receptivity in angiosperms remain opaque, but recent studies suggest that the acquisition of stigmatic receptivity associated with cell-wall-related arabinogalactan proteins (AGPs) may be a … phoenix i1 shootingWebSep 26, 2003 · The duration of stigmatic receptivity was evaluated through the capacity of the stigma to support pollen germination. For this purpose, flowers were emasculated 1 d before anthesis and hand-pollinated on the day of … phoenix iasclaimsgroup.com